mqtt, esp: add new esp8266-based device

19 files changed, 1834 insertions, 0 deletions

diff --git a/platformio/temphum/src/config.cpp b/platformio/temphum/src/config.cpp
new file mode 100644
index 0000000..54922c1
--- /dev/null
+++ b/platformio/temphum/src/config.cpp
@@ -0,0 +1,84 @@
+#include <EEPROM.h>
+#include <strings.h>
+#include "config.h"
+#include "logging.h"
+
+#define GET_DATA_CRC(data) \
+    eeprom_crc(reinterpret_cast<uint8_t*>(&(data))+4, sizeof(ConfigData)-4)
+
+namespace homekit::config {
+
+static const uint32_t magic = 0xdeadbeef;
+static const uint32_t crc_table[16] PROGMEM = {
+        0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac,
+        0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
+        0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c,
+        0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c
+};
+
+static uint32_t eeprom_crc(const uint8_t* data, size_t len) {
+    uint32_t crc = ~0L;
+    for (size_t index = 0; index < len; index++) {
+        crc = pgm_read_word(&crc_table[(crc ^ data[index]) & 0x0f]) ^ (crc >> 4);
+        crc = pgm_read_word(&crc_table[(crc ^ (data[index] >> 4)) & 0x0f]) ^ (crc >> 4);
+        crc = ~crc;
+    }
+    return crc;
+}
+
+ConfigData read() {
+    ConfigData data;
+    EEPROM.begin(sizeof(ConfigData));
+    EEPROM.get(0, data);
+    EEPROM.end();
+#ifdef DEBUG
+    if (!isValid(data)) {
+        PRINTLN("config::read(): data is not valid!");
+    }
+#endif
+    return data;
+}
+
+void write(ConfigData& data) {
+    EEPROM.begin(sizeof(ConfigData));
+    data.magic = magic;
+    data.crc = GET_DATA_CRC(data);
+    EEPROM.put(0, data);
+    EEPROM.end();
+}
+
+void erase() {
+    ConfigData data;
+    erase(data);
+}
+
+void erase(ConfigData& data) {
+    bzero(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+    write(data);
+}
+
+bool isValid(ConfigData& data) {
+    return data.crc == GET_DATA_CRC(data);
+}
+
+bool isDirty(ConfigData& data) {
+    return data.magic != magic;
+}
+
+char* ConfigData::escapeHomeId(char* buf, size_t len) {
+    if (len < 32)
+        return nullptr;
+    size_t id_len = strlen(node_id);
+    char* c = node_id;
+    char* dst = buf;
+    for (size_t i = 0; i < id_len; i++) {
+        if (*c == '"')
+            *(dst++) = '\\';
+        *(dst++) = *c;
+        c++;
+    }
+    *dst = '\0';
+    return buf;
+}
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/config.def.h.example b/platformio/temphum/src/config.def.h.example
new file mode 100644
index 0000000..06c551e
--- /dev/null
+++ b/platformio/temphum/src/config.def.h.example
@@ -0,0 +1,33 @@
+#pragma once
+
+#define FW_VERSION 7
+
+#define DEFAULT_WIFI_AP_SSID ""
+#define DEFAULT_WIFI_STA_SSID ""
+#define DEFAULT_WIFI_STA_PSK  ""
+
+#define DEFAULT_MQTT_SERVER "mqtt.solarmon.ru"
+#define DEFAULT_MQTT_PORT 8883
+#define DEFAULT_MQTT_USERNAME ""
+#define DEFAULT_MQTT_PASSWORD ""
+#define DEFAULT_MQTT_CLIENT_ID ""
+#define DEFAULT_MQTT_CA_FINGERPRINT { \
+    0x0e, 0xb6, 0x3a, 0x02, 0x1f,     \
+    0x4e, 0x1e, 0xe1, 0x6a, 0x67,     \
+    0x62, 0xec, 0x64, 0xd4, 0x84,     \
+    0x8a, 0xb0, 0xc9, 0x9c, 0xbb      \
+};
+
+#define DEFAULT_NODE_ID "relay-node"
+
+#define FLASH_BUTTON_PIN 0
+#define ESP_LED_PIN 2
+#define BOARD_LED_PIN 16
+#define RELAY_PIN 5
+
+// 12 bytes string
+#define HOME_SECRET_SIZE 12
+#define HOME_SECRET ""
+#define MQTT_BLINK 1
+
+#define ARRAY_SIZE(X) sizeof((X))/sizeof((X)[0])
\ No newline at end of file
diff --git a/platformio/temphum/src/config.h b/platformio/temphum/src/config.h
new file mode 100644
index 0000000..2a5b36a
--- /dev/null
+++ b/platformio/temphum/src/config.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include <Arduino.h>
+
+namespace homekit::config {
+
+struct ConfigFlags {
+    uint8_t wifi_configured: 1;
+    uint8_t node_configured: 1;
+    uint8_t reserved: 6;
+} __attribute__((packed));
+
+struct ConfigData {
+    // helpers
+    uint32_t crc = 0;
+    uint32_t magic = 0;
+    char node_id[16] = {0};
+    char wifi_ssid[32] = {0};
+    char wifi_psk[63] = {0};
+    ConfigFlags flags {0};
+
+    // helper methods
+    char* escapeHomeId(char* buf, size_t len);
+} __attribute__((packed));
+
+
+ConfigData read();
+void write(ConfigData& data);
+void erase();
+void erase(ConfigData& data);
+bool isValid(ConfigData& data);
+bool isDirty(ConfigData& data);
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/http_server.cpp b/platformio/temphum/src/http_server.cpp
new file mode 100644
index 0000000..5fbcb8a
--- /dev/null
+++ b/platformio/temphum/src/http_server.cpp
@@ -0,0 +1,279 @@
+#include <Arduino.h>
+#include <string.h>
+
+#include "static.h"
+#include "http_server.h"
+#include "config.h"
+#include "config.def.h"
+#include "logging.h"
+#include "util.h"
+#include "led.h"
+
+namespace homekit {
+
+using files::StaticFile;
+
+static const char CONTENT_TYPE_HTML[] PROGMEM = "text/html; charset=utf-8";
+static const char CONTENT_TYPE_CSS[] PROGMEM = "text/css";
+static const char CONTENT_TYPE_JS[] PROGMEM = "application/javascript";
+static const char CONTENT_TYPE_JSON[] PROGMEM = "application/json";
+static const char CONTENT_TYPE_FAVICON[] PROGMEM = "image/x-icon";
+
+static const char JSON_UPDATE_FMT[] PROGMEM = "{\"result\":%d}";
+static const char JSON_STATUS_FMT[] PROGMEM = "{\"node_id\":\"%s\""
+#ifdef DEBUG
+                                      ",\"configured\":%d"
+                                      ",\"crc\":%u"
+                                      ",\"fl_n\":%d"
+                                      ",\"fl_w\":%d"
+#endif
+                                      "}";
+static const size_t JSON_BUF_SIZE = 192;
+
+static const char JSON_SCAN_FIRST_LIST[] PROGMEM = "{\"list\":[";
+
+static const char MSG_IS_INVALID[] PROGMEM = " is invalid";
+static const char MSG_IS_MISSING[] PROGMEM = " is missing";
+
+static const char GZIP[] PROGMEM = "gzip";
+static const char CONTENT_ENCODING[] PROGMEM = "Content-Encoding";
+static const char NOT_FOUND[] PROGMEM = "Not Found";
+
+static const char ROUTE_STYLE_CSS[] PROGMEM = "/style.css";
+static const char ROUTE_APP_JS[] PROGMEM = "/app.js";
+static const char ROUTE_MD5_JS[] PROGMEM = "/md5.js";
+static const char ROUTE_FAVICON_ICO[] PROGMEM = "/favicon.ico";
+static const char ROUTE_STATUS[] PROGMEM = "/status";
+static const char ROUTE_SCAN[] PROGMEM = "/scan";
+static const char ROUTE_RESET[] PROGMEM = "/reset";
+// #ifdef DEBUG
+static const char ROUTE_HEAP[] PROGMEM = "/heap";
+// #endif
+static const char ROUTE_UPDATE[] PROGMEM = "/update";
+
+void HttpServer::start() {
+    server.on(FPSTR(ROUTE_STYLE_CSS), HTTP_GET, [&]() { sendGzip(files::style_css, CONTENT_TYPE_CSS); });
+    server.on(FPSTR(ROUTE_APP_JS), HTTP_GET, [&]() { sendGzip(files::app_js, CONTENT_TYPE_JS); });
+    server.on(FPSTR(ROUTE_MD5_JS), HTTP_GET, [&]() { sendGzip(files::md5_js, CONTENT_TYPE_JS); });
+    server.on(FPSTR(ROUTE_FAVICON_ICO), HTTP_GET, [&]() { sendGzip(files::favicon_ico, CONTENT_TYPE_FAVICON); });
+
+    server.on("/", HTTP_GET, [&]() { sendGzip(files::index_html, CONTENT_TYPE_HTML); });
+    server.on(FPSTR(ROUTE_STATUS), HTTP_GET, [&]() {
+        char json_buf[JSON_BUF_SIZE];
+        auto cfg = config::read();
+
+        if (!isValid(cfg) || !cfg.flags.node_configured) {
+            sprintf_P(json_buf, JSON_STATUS_FMT
+                    , DEFAULT_NODE_ID
+#ifdef DEBUG
+                    , 0
+                    , cfg.crc
+                    , cfg.flags.node_configured
+                    , cfg.flags.wifi_configured
+#endif
+            );
+        } else {
+            char escaped_node_id[32];
+            char *escaped_node_id_res = cfg.escapeHomeId(escaped_node_id, 32);
+            sprintf_P(json_buf, JSON_STATUS_FMT
+                    , escaped_node_id_res == nullptr ? "?" : escaped_node_id
+#ifdef DEBUG
+                    , 1
+                    , cfg.crc
+                    , cfg.flags.node_configured
+                    , cfg.flags.wifi_configured
+#endif
+            );
+        }
+        server.send(200, FPSTR(CONTENT_TYPE_JSON), json_buf);
+    });
+    server.on(FPSTR(ROUTE_STATUS), HTTP_POST, [&]() {
+        auto cfg = config::read();
+        String s;
+
+        if (!getInputParam("ssid", 32, s)) return;
+        strncpy(cfg.wifi_ssid, s.c_str(), 32);
+        PRINTF("saving ssid: %s\n", cfg.wifi_ssid);
+
+        if (!getInputParam("psk", 63, s)) return;
+        strncpy(cfg.wifi_psk, s.c_str(), 63);
+        PRINTF("saving psk: %s\n", cfg.wifi_psk);
+
+        if (!getInputParam("hid", 16, s)) return;
+        strcpy(cfg.node_id, s.c_str());
+        PRINTF("saving home id: %s\n", cfg.node_id);
+
+        cfg.flags.node_configured = 1;
+        cfg.flags.wifi_configured = 1;
+
+        config::write(cfg);
+
+        restartTimer.once(0, restart);
+    });
+
+    server.on(FPSTR(ROUTE_RESET), HTTP_POST, [&]() {
+        config::erase();
+        restartTimer.once(1, restart);
+    });
+
+    server.on(FPSTR(ROUTE_HEAP), HTTP_GET, [&]() {
+       server.send(200, FPSTR(CONTENT_TYPE_HTML), String(ESP.getFreeHeap()));
+    });
+
+    server.on(FPSTR(ROUTE_SCAN), HTTP_GET, [&]() {
+        size_t i = 0;
+        size_t len;
+        const char* ssid;
+        bool enough = false;
+
+        bzero(reinterpret_cast<uint8_t*>(scanBuf), scanBufSize);
+        char* cur = scanBuf;
+
+        strncpy_P(cur, JSON_SCAN_FIRST_LIST, scanBufSize);
+        cur += 9;
+
+        for (auto& res: *scanResults) {
+            ssid = res.ssid.c_str();
+            len = res.ssid.length();
+
+            // new item (array with 2 items)
+            *cur++ = '[';
+
+            // 1. ssid (string)
+            *cur++ = '"';
+            for (size_t j = 0; j < len; j++) {
+                if (*(ssid+j) == '"')
+                    *cur++ = '\\';
+                *cur++ = *(ssid+j);
+            }
+            *cur++ = '"';
+            *cur++ = ',';
+
+            // 2. rssi (number)
+            cur += sprintf(cur, "%d", res.rssi);
+
+            // close array
+            *cur++ = ']';
+
+            if ((size_t)(cur - scanBuf) >= (size_t) ARRAY_SIZE(scanBuf) - 40)
+                enough = true;
+
+            if (i < scanResults->size() - 1 || enough)
+                *cur++ = ',';
+
+            if (enough)
+                break;
+
+            i++;
+        }
+
+        *cur++ = ']';
+        *cur++ = '}';
+        *cur++ = '\0';
+
+        server.send(200, FPSTR(CONTENT_TYPE_JSON), scanBuf);
+    });
+
+    server.on(FPSTR(ROUTE_UPDATE), HTTP_POST, [&]() {
+        char json_buf[16];
+        bool should_reboot = !Update.hasError() && !ota.invalidMd5;
+        Update.clearError();
+
+        sprintf_P(json_buf, JSON_UPDATE_FMT, should_reboot ? 1 : 0);
+
+        server.send(200, FPSTR(CONTENT_TYPE_JSON), json_buf);
+
+        if (should_reboot)
+            restartTimer.once(1, restart);
+    }, [&]() {
+        HTTPUpload& upload = server.upload();
+
+        if (upload.status == UPLOAD_FILE_START) {
+            ota.clean();
+
+            String s;
+            if (!getInputParam("md5", 0, s)) {
+                ota.invalidMd5 = true;
+                PRINTLN("http/ota: md5 not found");
+                return;
+            }
+
+            if (!Update.setMD5(s.c_str())) {
+                ota.invalidMd5 = true;
+                PRINTLN("http/ota: setMD5() failed");
+                return;
+            }
+
+            Serial.printf("http/ota: starting, filename=%s\n", upload.filename.c_str());
+            if (!Update.begin(otaGetMaxUpdateSize())) {
+#ifdef DEBUG
+                Update.printError(Serial);
+#endif
+            }
+        } else if (upload.status == UPLOAD_FILE_WRITE) {
+            if (!Update.isRunning())
+                return;
+
+            PRINTF("http/ota: writing %ul\n", upload.currentSize);
+            esp_led.blink(1, 1);
+            if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) {
+#ifdef DEBUG
+                Update.printError(Serial);
+#endif
+            }
+        } else if (upload.status == UPLOAD_FILE_END) {
+            if (!Update.isRunning())
+                return;
+
+            if (Update.end(true)) {
+                PRINTF("http/ota: ok, total size %ul\n", upload.totalSize);
+            } else {
+#ifdef DEBUG
+                Update.printError(Serial);
+#endif
+            }
+        }
+    });
+
+    server.onNotFound([&]() {
+        server.send(404, FPSTR(CONTENT_TYPE_HTML), NOT_FOUND);
+    });
+
+    server.begin();
+}
+
+void HttpServer::loop() {
+    server.handleClient();
+}
+
+void HttpServer::sendGzip(const StaticFile& file, PGM_P content_type) {
+    server.sendHeader(FPSTR(CONTENT_ENCODING), FPSTR(GZIP));
+    server.send_P(200, content_type, (const char*)file.content, file.size);
+}
+
+void HttpServer::sendError(const String& message) {
+    char buf[32];
+    if (snprintf_P(buf, 32, PSTR("error: %s"), message.c_str()) == 32)
+        buf[31] = '\0';
+    server.send(400, FPSTR(CONTENT_TYPE_HTML), buf);
+}
+
+bool HttpServer::getInputParam(const char *field_name,
+                               size_t max_len,
+                               String& dst) {
+    if (!server.hasArg(field_name)) {
+        sendError(String(field_name) + String(MSG_IS_MISSING));
+        return false;
+    }
+
+    String field = server.arg(field_name);
+    if (!field.length() || (max_len != 0 && field.length() > max_len)) {
+        sendError(String(field_name) + String(MSG_IS_INVALID));
+        return false;
+    }
+
+    dst = field;
+    return true;
+}
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/http_server.h b/platformio/temphum/src/http_server.h
new file mode 100644
index 0000000..35f7c08
--- /dev/null
+++ b/platformio/temphum/src/http_server.h
@@ -0,0 +1,56 @@
+#pragma once
+#include <ESP8266WebServer.h>
+#include <Ticker.h>
+#include <memory>
+#include <list>
+#include <utility>
+#include "config.h"
+#include "wifi.h"
+#include "static.h"
+
+namespace homekit {
+
+struct OTAStatus {
+    bool invalidMd5;
+
+    OTAStatus() : invalidMd5(false) {}
+
+    inline void clean() {
+        invalidMd5 = false;
+    }
+};
+
+using files::StaticFile;
+
+class HttpServer {
+private:
+    ESP8266WebServer server;
+    Ticker restartTimer;
+    std::shared_ptr<std::list<wifi::ScanResult>> scanResults;
+    OTAStatus ota;
+
+    char* scanBuf;
+    size_t scanBufSize;
+
+    void sendGzip(const StaticFile& file, PGM_P content_type);
+    void sendError(const String& message);
+
+    bool getInputParam(const char* field_name, size_t max_len, String& dst);
+
+public:
+    explicit HttpServer(std::shared_ptr<std::list<wifi::ScanResult>> scanResults)
+        : server(80)
+        , scanResults(std::move(scanResults))
+        , scanBufSize(512) {
+        scanBuf = new char[scanBufSize];
+    };
+
+    ~HttpServer() {
+        delete[] scanBuf;
+    }
+
+    void start();
+    void loop();
+};
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/led.cpp b/platformio/temphum/src/led.cpp
new file mode 100644
index 0000000..b6b0d81
--- /dev/null
+++ b/platformio/temphum/src/led.cpp
@@ -0,0 +1,9 @@
+#include "led.h"
+#include "config.def.h"
+
+namespace homekit {
+
+Led board_led(BOARD_LED_PIN);
+Led esp_led(ESP_LED_PIN);
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/led.h b/platformio/temphum/src/led.h
new file mode 100644
index 0000000..315523a
--- /dev/null
+++ b/platformio/temphum/src/led.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include <Arduino.h>
+
+namespace homekit {
+
+class Led {
+private:
+    uint8_t _pin;
+
+public:
+    explicit Led(uint8_t pin) : _pin(pin) {
+        pinMode(_pin, OUTPUT);
+        off();
+    }
+
+    inline void off() const { digitalWrite(_pin, HIGH); }
+    inline void on() const { digitalWrite(_pin, LOW); }
+
+    void on_off(uint16_t delay_ms, bool last_delay = false) const {
+        on();
+        delay(delay_ms);
+
+        off();
+        if (last_delay)
+            delay(delay_ms);
+    }
+
+    void blink(uint8_t count, uint16_t delay_ms) const {
+        for (uint8_t i = 0; i < count; i++) {
+            on_off(delay_ms, i < count-1);
+        }
+    }
+};
+
+extern Led board_led;
+extern Led esp_led;
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/logging.h b/platformio/temphum/src/logging.h
new file mode 100644
index 0000000..070f367
--- /dev/null
+++ b/platformio/temphum/src/logging.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdlib.h>
+#include "config.def.h"
+
+#ifdef DEBUG
+
+#define PRINTLN(s)          Serial.println(s)
+#define PRINT(s)            Serial.print(s)
+#define PRINTF(fmt, ...)    Serial.printf(fmt, ##__VA_ARGS__)
+
+#else
+
+#define PRINTLN(s)
+#define PRINT(s)
+#define PRINTF(...)
+
+#endif
diff --git a/platformio/temphum/src/main.cpp b/platformio/temphum/src/main.cpp
new file mode 100644
index 0000000..1fa7e66
--- /dev/null
+++ b/platformio/temphum/src/main.cpp
@@ -0,0 +1,183 @@
+#include <Arduino.h>
+#include <ESP8266WiFi.h>
+#include <DNSServer.h>
+#include <Ticker.h>
+#include <Wire.h>
+
+#include "mqtt.h"
+#include "config.h"
+#include "logging.h"
+#include "http_server.h"
+#include "led.h"
+#include "config.def.h"
+#include "wifi.h"
+#include "temphum.h"
+#include "stopwatch.h"
+
+using namespace homekit;
+
+enum class WorkingMode {
+    RECOVERY, // AP mode, http server with configuration
+    NORMAL,   // MQTT client
+};
+static enum WorkingMode working_mode = WorkingMode::NORMAL;
+
+enum class WiFiConnectionState {
+    WAITING = 0,
+    JUST_CONNECTED = 1,
+    CONNECTED = 2
+};
+
+static const uint16_t recovery_boot_detection_ms = 2000;
+static const uint8_t recovery_boot_delay_ms = 100;
+
+static volatile enum WiFiConnectionState wifi_state = WiFiConnectionState::WAITING;
+static void* service = nullptr;
+static WiFiEventHandler wifiConnectHandler, wifiDisconnectHandler;
+static Ticker wifiTimer;
+#if MQTT_BLINK
+static StopWatch blinkStopWatch;
+#endif
+
+static DNSServer* dnsServer = nullptr;
+
+static void onWifiConnected(const WiFiEventStationModeGotIP& event);
+static void onWifiDisconnected(const WiFiEventStationModeDisconnected& event);
+
+static void wifiConnect() {
+    const char *ssid, *psk, *hostname;
+    auto cfg = config::read();
+    wifi::getConfig(cfg, &ssid, &psk, &hostname);
+
+    PRINTF("Wi-Fi STA creds: ssid=%s, psk=%s, hostname=%s\n", ssid, psk, hostname);
+
+    wifi_state = WiFiConnectionState::WAITING;
+
+    WiFi.mode(WIFI_STA);
+    WiFi.hostname(hostname);
+    WiFi.begin(ssid, psk);
+
+    PRINT("connecting to wifi..");
+}
+
+static void wifiHotspot() {
+    esp_led.on();
+
+    auto scanResults = wifi::scan();
+
+    WiFi.mode(WIFI_AP);
+    WiFi.softAP(wifi::AP_SSID);
+
+    dnsServer = new DNSServer();
+    dnsServer->start(53, "*", WiFi.softAPIP());
+
+    service = new HttpServer(scanResults);
+    ((HttpServer*)service)->start();
+}
+
+static void waitForRecoveryPress() {
+    pinMode(FLASH_BUTTON_PIN, INPUT_PULLUP);
+    for (uint16_t i = 0; i < recovery_boot_detection_ms; i += recovery_boot_delay_ms) {
+        delay(recovery_boot_delay_ms);
+        if (digitalRead(FLASH_BUTTON_PIN) == LOW) {
+            working_mode = WorkingMode::RECOVERY;
+            break;
+        }
+    }
+}
+
+void setup() {
+    WiFi.disconnect();
+    waitForRecoveryPress();
+
+    temphum::setup();
+
+#ifdef DEBUG
+    Serial.begin(115200);
+#endif
+
+    auto cfg = config::read();
+    if (config::isDirty(cfg)) {
+        PRINTLN("config is dirty, erasing...");
+        config::erase(cfg);
+        board_led.blink(10, 50);
+    }
+
+    switch (working_mode) {
+    case WorkingMode::RECOVERY:
+        wifiHotspot();
+        break;
+
+    case WorkingMode::NORMAL:
+        wifiConnectHandler = WiFi.onStationModeGotIP(onWifiConnected);
+        wifiDisconnectHandler = WiFi.onStationModeDisconnected(onWifiDisconnected);
+        wifiConnect();
+        break;
+    }
+}
+
+void loop() {
+    if (working_mode == WorkingMode::NORMAL) {
+        if (wifi_state == WiFiConnectionState::WAITING) {
+            PRINT(".");
+            esp_led.blink(2, 50);
+            delay(1000);
+            return;
+        }
+
+        if (wifi_state == WiFiConnectionState::JUST_CONNECTED) {
+            board_led.blink(3, 300);
+            wifi_state = WiFiConnectionState::CONNECTED;
+
+            if (service == nullptr)
+                service = new mqtt::MQTT();
+
+            ((mqtt::MQTT*)service)->connect();
+#if MQTT_BLINK
+            blinkStopWatch.save();
+#endif
+        }
+
+        auto mqtt = (mqtt::MQTT*)service;
+        if (static_cast<int>(wifi_state) >= 1 && mqtt != nullptr) {
+            mqtt->loop();
+
+            if (mqtt->ota.readyToRestart) {
+                mqtt->disconnect();
+            } else if (mqtt->diagnosticsStopWatch.elapsed(10000)) {
+                mqtt->sendDiagnostics();
+
+                auto data = temphum::read();
+                mqtt->sendTempHumData(data.temp, data.rh);
+            }
+
+#if MQTT_BLINK
+            // periodically blink board led
+            if (blinkStopWatch.elapsed(5000)) {
+                board_led.blink(1, 10);
+                blinkStopWatch.save();
+            }
+#endif
+        }
+    } else {
+        if (dnsServer != nullptr)
+            dnsServer->processNextRequest();
+
+        auto httpServer = (HttpServer*)service;
+        if (httpServer != nullptr)
+            httpServer->loop();
+    }
+}
+
+static void onWifiConnected(const WiFiEventStationModeGotIP& event) {
+    PRINTF("connected (%s)\n", WiFi.localIP().toString().c_str());
+    wifi_state = WiFiConnectionState::JUST_CONNECTED;
+}
+
+static void onWifiDisconnected(const WiFiEventStationModeDisconnected& event) {
+    PRINTLN("disconnected from wi-fi");
+    wifi_state = WiFiConnectionState::WAITING;
+    if (service != nullptr)
+        ((mqtt::MQTT*)service)->disconnect();
+    wifiTimer.once(2, wifiConnect);
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/mqtt.cpp b/platformio/temphum/src/mqtt.cpp
new file mode 100644
index 0000000..ff13e43
--- /dev/null
+++ b/platformio/temphum/src/mqtt.cpp
@@ -0,0 +1,325 @@
+#include <ESP8266httpUpdate.h>
+#include "mqtt.h"
+#include "logging.h"
+#include "wifi.h"
+#include "config.def.h"
+#include "config.h"
+#include "static.h"
+#include "util.h"
+#include "led.h"
+
+namespace homekit::mqtt {
+
+static const uint8_t MQTT_CA_FINGERPRINT[] = DEFAULT_MQTT_CA_FINGERPRINT;
+static const char MQTT_SERVER[] = DEFAULT_MQTT_SERVER;
+static const uint16_t MQTT_PORT = DEFAULT_MQTT_PORT;
+static const char MQTT_USERNAME[] = DEFAULT_MQTT_USERNAME;
+static const char MQTT_PASSWORD[] = DEFAULT_MQTT_PASSWORD;
+static const char MQTT_CLIENT_ID[] = DEFAULT_MQTT_CLIENT_ID;
+static const char MQTT_SECRET[HOME_SECRET_SIZE+1] = HOME_SECRET;
+
+static const char TOPIC_DIAGNOSTICS[] = "stat";
+static const char TOPIC_INITIAL_DIAGNOSTICS[] = "stat1";
+static const char TOPIC_OTA_RESPONSE[] = "otares";
+static const char TOPIC_TEMPHUM_DATA[] = "data";
+static const char TOPIC_ADMIN_OTA[] = "admin/ota";
+static const uint16_t MQTT_KEEPALIVE = 30;
+
+enum class IncomingMessage {
+    UNKNOWN,
+    OTA
+};
+
+using namespace espMqttClientTypes;
+
+#define MD5_SIZE 16
+
+MQTT::MQTT() {
+    auto cfg = config::read();
+    homeId = String(cfg.flags.node_configured ? cfg.node_id : wifi::NODE_ID);
+
+    randomSeed(micros());
+
+    client.onConnect([&](bool sessionPresent) {
+        PRINTLN("mqtt: connected");
+
+        sendInitialDiagnostics();
+        subscribe(TOPIC_ADMIN_OTA);
+    });
+
+    client.onDisconnect([&](DisconnectReason reason) {
+        PRINTF("mqtt: disconnected, reason=%d\n", static_cast<int>(reason));
+#ifdef DEBUG
+        if (reason == DisconnectReason::TLS_BAD_FINGERPRINT)
+            PRINTLN("reason: bad fingerprint");
+#endif
+
+        if (ota.started()) {
+            PRINTLN("mqtt: update was in progress, canceling..");
+            ota.clean();
+            Update.end();
+            Update.clearError();
+        }
+
+        if (ota.readyToRestart) {
+            restartTimer.once(1, restart);
+        } else {
+            reconnectTimer.once(2, [&]() {
+                reconnect();
+            });
+        }
+    });
+
+    client.onSubscribe([&](uint16_t packetId, const SubscribeReturncode* returncodes, size_t len) {
+        PRINTF("mqtt: subscribe ack, packet_id=%d\n", packetId);
+        for (size_t i = 0; i < len; i++) {
+            PRINTF("    return code: %u\n", static_cast<unsigned int>(*(returncodes+i)));
+        }
+    });
+
+    client.onUnsubscribe([&](uint16_t packetId) {
+        PRINTF("mqtt: unsubscribe ack, packet_id=%d\n", packetId);
+    });
+
+    client.onMessage([&](const MessageProperties& properties, const char* topic, const uint8_t* payload, size_t len, size_t index, size_t total) {
+        PRINTF("mqtt: message received, topic=%s, qos=%d, dup=%d, retain=%d, len=%ul, index=%ul, total=%ul\n",
+               topic, properties.qos, (int)properties.dup, (int)properties.retain, len, index, total);
+
+        IncomingMessage msgType = IncomingMessage::UNKNOWN;
+
+        const char *ptr = topic + homeId.length() + 10;
+        String relevantTopic(ptr);
+
+        if (relevantTopic == TOPIC_ADMIN_OTA)
+            msgType = IncomingMessage::OTA;
+
+        if (len != total && msgType != IncomingMessage::OTA) {
+            PRINTLN("mqtt: received partial message, not supported");
+            return;
+        }
+
+        switch (msgType) {
+        case IncomingMessage::OTA:
+            if (ota.finished)
+                break;
+            handleAdminOtaPayload(properties.packetId, payload, len, index, total);
+            break;
+
+        case IncomingMessage::UNKNOWN:
+            PRINTF("error: invalid topic %s\n", topic);
+            break;
+        }
+    });
+
+    client.onPublish([&](uint16_t packetId) {
+        PRINTF("mqtt: publish ack, packet_id=%d\n", packetId);
+
+        if (ota.finished && packetId == ota.publishResultPacketId) {
+            ota.readyToRestart = true;
+        }
+    });
+
+    client.setServer(MQTT_SERVER, MQTT_PORT);
+    client.setClientId(MQTT_CLIENT_ID);
+    client.setCredentials(MQTT_USERNAME, MQTT_PASSWORD);
+    client.setCleanSession(true);
+    client.setFingerprint(MQTT_CA_FINGERPRINT);
+    client.setKeepAlive(MQTT_KEEPALIVE);
+}
+
+void MQTT::connect() {
+    reconnect();
+}
+
+void MQTT::reconnect() {
+    if (client.connected()) {
+        PRINTLN("warning: already connected");
+        return;
+    }
+    client.connect();
+}
+
+void MQTT::disconnect() {
+    // TODO test how this works???
+    reconnectTimer.detach();
+    client.disconnect();
+}
+
+uint16_t MQTT::publish(const String &topic, uint8_t *payload, size_t length) {
+    String fullTopic = "hk/" + homeId + "/temphum/" + topic;
+    return client.publish(fullTopic.c_str(), 1, false, payload, length);
+}
+
+void MQTT::loop() {
+    client.loop();
+}
+
+uint16_t MQTT::subscribe(const String &topic, uint8_t qos) {
+    String fullTopic = "hk/" + homeId + "/temphum/" + topic;
+    PRINTF("mqtt: subscribing to %s...\n", fullTopic.c_str());
+
+    uint16_t packetId = client.subscribe(fullTopic.c_str(), qos);
+    if (!packetId)
+        PRINTF("error: failed to subscribe to %s\n", fullTopic.c_str());
+    return packetId;
+}
+
+void MQTT::sendInitialDiagnostics() {
+    auto cfg = config::read();
+    InitialDiagnosticsPayload stat{
+            .ip = wifi::getIPAsInteger(),
+            .fw_version = FW_VERSION,
+            .rssi = wifi::getRSSI(),
+            .free_heap = ESP.getFreeHeap(),
+            .flags = DiagnosticsFlags{
+                    .state = 1,
+                    .config_changed_value_present = 1,
+                    .config_changed = static_cast<uint8_t>(cfg.flags.node_configured ||
+                                                           cfg.flags.wifi_configured ? 1 : 0)
+            }
+    };
+    publish(TOPIC_INITIAL_DIAGNOSTICS, reinterpret_cast<uint8_t*>(&stat), sizeof(stat));
+    diagnosticsStopWatch.save();
+}
+
+void MQTT::sendDiagnostics() {
+    DiagnosticsPayload stat{
+            .rssi = wifi::getRSSI(),
+            .free_heap = ESP.getFreeHeap(),
+            .flags = DiagnosticsFlags{
+                    .state = 1,
+                    .config_changed_value_present = 0,
+                    .config_changed = 0
+            }
+    };
+    publish(TOPIC_DIAGNOSTICS, reinterpret_cast<uint8_t*>(&stat), sizeof(stat));
+    diagnosticsStopWatch.save();
+}
+
+void MQTT::sendTempHumData(double temp, double rh) {
+    TempHumDataPayload data {
+            .temp = temp,
+            .rh = rh
+    };
+    publish(TOPIC_TEMPHUM_DATA, reinterpret_cast<uint8_t*>(&data), sizeof(data));
+}
+
+uint16_t MQTT::sendOtaResponse(OTAResult status, uint8_t error_code) {
+    OTAResponse resp{
+            .status = status,
+            .error_code = error_code
+    };
+    return publish(TOPIC_OTA_RESPONSE, reinterpret_cast<uint8_t*>(&resp), sizeof(resp));
+}
+
+void MQTT::handleAdminOtaPayload(uint16_t packetId, const uint8_t *payload, size_t length, size_t index, size_t total) {
+    char md5[33];
+    char* md5Ptr = md5;
+
+    if (index != 0 && ota.dataPacketId != packetId) {
+        PRINTLN("mqtt/ota: non-matching packet id");
+        return;
+    }
+
+    Update.runAsync(true);
+
+    if (index == 0) {
+        if (length < HOME_SECRET_SIZE + MD5_SIZE) {
+            PRINTLN("mqtt/ota: failed to check secret, first packet size is too small");
+            return;
+        }
+
+        if (memcmp((const char*)payload, HOME_SECRET, HOME_SECRET_SIZE) != 0) {
+            PRINTLN("mqtt/ota: invalid secret");
+            return;
+        }
+
+        PRINTF("mqtt/ota: starting update, total=%ul\n", total-HOME_SECRET_SIZE);
+        for (int i = 0; i < MD5_SIZE; i++) {
+            md5Ptr += sprintf(md5Ptr, "%02x", *((unsigned char*)(payload+HOME_SECRET_SIZE+i)));
+        }
+        md5[32] = '\0';
+        PRINTF("mqtt/ota: md5 is %s\n", md5);
+        PRINTF("mqtt/ota: first packet is %ul bytes length\n", length);
+
+        md5[32] = '\0';
+
+        if (Update.isRunning()) {
+            Update.end();
+            Update.clearError();
+        }
+
+        if (!Update.setMD5(md5)) {
+            PRINTLN("mqtt/ota: setMD5 failed");
+            return;
+        }
+
+        ota.dataPacketId = packetId;
+
+        if (!Update.begin(total - HOME_SECRET_SIZE - MD5_SIZE)) {
+            ota.clean();
+#ifdef DEBUG
+            Update.printError(Serial);
+#endif
+            sendOtaResponse(OTAResult::UPDATE_ERROR, Update.getError());
+        }
+
+        ota.written = Update.write(const_cast<uint8_t*>(payload)+HOME_SECRET_SIZE + MD5_SIZE, length-HOME_SECRET_SIZE - MD5_SIZE);
+        ota.written += HOME_SECRET_SIZE + MD5_SIZE;
+
+        esp_led.blink(1, 1);
+        PRINTF("mqtt/ota: updating %u/%u\n", ota.written, Update.size());
+
+    } else {
+        if (!Update.isRunning()) {
+            PRINTLN("mqtt/ota: update is not running");
+            return;
+        }
+
+        if (index == ota.written) {
+            size_t written;
+            if ((written = Update.write(const_cast<uint8_t*>(payload), length)) != length) {
+                PRINTF("mqtt/ota: error: tried to write %ul bytes, write() returned %ul\n",
+                        length, written);
+                ota.clean();
+                Update.end();
+                Update.clearError();
+                sendOtaResponse(OTAResult::WRITE_ERROR);
+                return;
+            }
+            ota.written += length;
+
+            esp_led.blink(1, 1);
+            PRINTF("mqtt/ota: updating %u/%u\n",
+                   ota.written - HOME_SECRET_SIZE - MD5_SIZE,
+                   Update.size());
+        } else {
+            PRINTF("mqtt/ota: position is invalid, expected %ul, got %ul\n", ota.written, index);
+            ota.clean();
+            Update.end();
+            Update.clearError();
+        }
+    }
+
+    if (Update.isFinished()) {
+        ota.dataPacketId = 0;
+
+        if (Update.end()) {
+            ota.finished = true;
+            ota.publishResultPacketId = sendOtaResponse(OTAResult::OK);
+            PRINTF("mqtt/ota: ok, otares packet_id=%d\n", ota.publishResultPacketId);
+        } else {
+            ota.clean();
+
+            PRINTF("mqtt/ota: error: %u\n", Update.getError());
+#ifdef DEBUG
+            Update.printError(Serial);
+#endif
+            Update.clearError();
+
+            sendOtaResponse(OTAResult::UPDATE_ERROR, Update.getError());
+        }
+    }
+}
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/mqtt.h b/platformio/temphum/src/mqtt.h
new file mode 100644
index 0000000..38ed988
--- /dev/null
+++ b/platformio/temphum/src/mqtt.h
@@ -0,0 +1,107 @@
+#include <ESP8266WiFi.h>
+#include <espMqttClient.h>
+#include <Ticker.h>
+#include "stopwatch.h"
+
+namespace homekit { namespace mqtt {
+
+enum class OTAResult: uint8_t {
+    OK = 0,
+    UPDATE_ERROR = 1,
+    WRITE_ERROR = 2,
+};
+
+struct OTAStatus {
+    uint16_t dataPacketId;
+    uint16_t publishResultPacketId;
+    bool finished;
+    bool readyToRestart;
+    size_t written;
+
+    OTAStatus()
+        : dataPacketId(0)
+        , publishResultPacketId(0)
+        , finished(false)
+        , readyToRestart(false)
+        , written(0)
+    {}
+
+    inline void clean() {
+        dataPacketId = 0;
+        publishResultPacketId = 0;
+        finished = false;
+        readyToRestart = false;
+        written = 0;
+    }
+
+    inline bool started() const {
+        return dataPacketId != 0;
+    }
+};
+
+class MQTT {
+private:
+    String homeId;
+    WiFiClientSecure httpsSecureClient;
+    espMqttClientSecure client;
+    Ticker reconnectTimer;
+    Ticker restartTimer;
+
+    void handleAdminOtaPayload(uint16_t packetId, const uint8_t* payload, size_t length, size_t index, size_t total);
+
+    uint16_t publish(const String& topic, uint8_t* payload, size_t length);
+    uint16_t subscribe(const String& topic, uint8_t qos = 0);
+
+    void sendInitialDiagnostics();
+    uint16_t sendOtaResponse(OTAResult status, uint8_t error_code = 0);
+
+public:
+    StopWatch diagnosticsStopWatch;
+    OTAStatus ota;
+
+    MQTT();
+    void connect();
+    void disconnect();
+    void reconnect();
+    void loop();
+    void sendDiagnostics();
+    void sendTempHumData(double temp, double rh);
+};
+
+struct DiagnosticsFlags {
+    uint8_t state: 1;
+    uint8_t config_changed_value_present: 1;
+    uint8_t config_changed: 1;
+    uint8_t reserved: 5;
+} __attribute__((packed));
+
+struct InitialDiagnosticsPayload {
+    uint32_t ip;
+    uint8_t fw_version;
+    int8_t rssi;
+    uint32_t free_heap;
+    DiagnosticsFlags flags;
+} __attribute__((packed));
+
+struct DiagnosticsPayload {
+    int8_t rssi;
+    uint32_t free_heap;
+    DiagnosticsFlags flags;
+} __attribute__((packed));
+
+struct PowerPayload {
+    char secret[12];
+    uint8_t state;
+} __attribute__((packed));
+
+struct TempHumDataPayload {
+    double temp;
+    double rh;
+} __attribute__((packed));
+
+struct OTAResponse {
+    OTAResult status;
+    uint8_t error_code;
+} __attribute__((packed));
+
+} }
\ No newline at end of file
diff --git a/platformio/temphum/src/static.cpp b/platformio/temphum/src/static.cpp
new file mode 100644
index 0000000..366a09f
--- /dev/null
+++ b/platformio/temphum/src/static.cpp
@@ -0,0 +1,450 @@
+/**
+ * This file is autogenerated with make_static.sh script
+ */
+
+#include "static.h"
+
+namespace homekit::files {
+
+static const uint8_t index_html_content[] PROGMEM = {
+    0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x9d, 0x56, 0x4d, 0x6f, 0xdb, 0x38,
+    0x10, 0xbd, 0xe7, 0x57, 0xb0, 0x3c, 0x14, 0x09, 0x10, 0x4b, 0x9b, 0x14, 0xcd, 0x16, 0xad, 0x24,
+    0xa0, 0xd8, 0x76, 0xb1, 0x05, 0x7a, 0x08, 0x6a, 0x14, 0x0b, 0xec, 0xc5, 0xa0, 0xa8, 0x91, 0xc5,
+    0x9a, 0x22, 0x59, 0x71, 0x24, 0xc7, 0xfd, 0xf5, 0x1d, 0x52, 0x92, 0x3f, 0xb2, 0x46, 0xfa, 0x71,
+    0xb1, 0x34, 0xc3, 0x99, 0x37, 0x6f, 0x1e, 0x87, 0xa2, 0xb3, 0x67, 0x95, 0x95, 0xb8, 0x73, 0xc0,
+    0x1a, 0x6c, 0x75, 0x71, 0x91, 0x85, 0x07, 0xd3, 0xc2, 0xac, 0x73, 0x0e, 0x86, 0x07, 0x07, 0x88,
+    0x8a, 0x1e, 0x2d, 0xa0, 0xa0, 0x18, 0x74, 0x0b, 0xf8, 0xda, 0xab, 0x21, 0xe7, 0xd2, 0x1a, 0x04,
+    0x83, 0x8b, 0x90, 0xcc, 0xd9, 0x64, 0xe5, 0x1c, 0xe1, 0x01, 0xd3, 0x00, 0xf2, 0x86, 0xc9, 0x46,
+    0x74, 0x1e, 0x30, 0xef, 0xb1, 0x5e, 0xbc, 0xe2, 0x33, 0x86, 0x11, 0x2d, 0xe4, 0x7c, 0x50, 0xb0,
+    0x75, 0xb6, 0xc3, 0xa3, 0xcc, 0xad, 0xaa, 0xb0, 0xc9, 0x2b, 0x18, 0x94, 0x84, 0x45, 0x34, 0xae,
+    0x95, 0x51, 0xa8, 0x84, 0x5e, 0x78, 0x29, 0x34, 0xe4, 0x37, 0xd7, 0x2d, 0x39, 0xda, 0xbe, 0x3d,
+    0xd8, 0xe2, 0xe1, 0xc4, 0xee, 0x3d, 0x74, 0xd1, 0x10, 0x25, 0xd9, 0xc6, 0x86, 0xa2, 0xa8, 0x50,
+    0x43, 0xf1, 0x97, 0x35, 0xb5, 0x5a, 0xf7, 0x9d, 0x40, 0x65, 0x4d, 0x96, 0x8e, 0xce, 0x8b, 0x4c,
+    0x2b, 0xb3, 0x61, 0x1d, 0xe8, 0x9c, 0xfb, 0x86, 0xd8, 0xc8, 0x1e, 0x99, 0x22, 0x42, 0x9c, 0x35,
+    0x1d, 0xd4, 0x39, 0x4f, 0x6b, 0x31, 0x04, 0x3b, 0xa1, 0x1f, 0xce, 0x42, 0xa7, 0x39, 0x57, 0xad,
+    0x58, 0x43, 0xfa, 0xb0, 0x88, 0x71, 0xa7, 0x10, 0xb8, 0xd3, 0xe0, 0x1b, 0x00, 0x9c, 0x63, 0xa3,
+    0x18, 0xd2, 0xfb, 0x3d, 0x5e, 0x0c, 0x49, 0x82, 0x87, 0x32, 0xbd, 0xec, 0x94, 0x43, 0xe6, 0x3b,
+    0x49, 0x2b, 0x6d, 0xf5, 0x32, 0xf9, 0x42, 0xee, 0x2c, 0x1d, 0xdd, 0x8f, 0xd7, 0x85, 0x73, 0x8f,
+    0xd7, 0xd3, 0x69, 0x6b, 0x4a, 0x5b, 0xed, 0x98, 0x35, 0xda, 0x8a, 0x8a, 0xe8, 0x91, 0x64, 0x6f,
+    0x9d, 0xbb, 0xbc, 0x0a, 0x15, 0x2a, 0x35, 0x30, 0xa9, 0x85, 0xf7, 0x44, 0x25, 0x74, 0xcc, 0x8b,
+    0x25, 0x20, 0x2a, 0xb3, 0xf6, 0x2c, 0xf3, 0x4e, 0x18, 0xa6, 0x28, 0x23, 0xe4, 0x91, 0x6b, 0x45,
+    0xa2, 0x81, 0xe6, 0xc5, 0xe5, 0x64, 0x27, 0x49, 0x72, 0x45, 0xc5, 0x28, 0x8a, 0x6a, 0x12, 0xd0,
+    0x29, 0x5c, 0xa9, 0xad, 0xdc, 0x84, 0x12, 0xb5, 0xed, 0x5a, 0x46, 0x1b, 0xdb, 0x58, 0x82, 0x72,
+    0xd6, 0x53, 0xef, 0x42, 0x06, 0x91, 0x63, 0xb7, 0x02, 0x7b, 0x6a, 0x7e, 0xdc, 0x72, 0x03, 0xb8,
+    0xb5, 0xdd, 0x66, 0xe5, 0x27, 0x0a, 0x8f, 0x08, 0x06, 0xa0, 0x99, 0xc3, 0xbf, 0xea, 0x6f, 0xc5,
+    0x96, 0xcb, 0x0f, 0xef, 0xce, 0x54, 0x8e, 0x71, 0xca, 0xb8, 0x1e, 0xa3, 0x86, 0xa0, 0x41, 0x62,
+    0xec, 0xc3, 0x7b, 0x55, 0xad, 0x46, 0x7b, 0x2e, 0x19, 0x5c, 0x7c, 0x9f, 0xd8, 0x6b, 0x3d, 0xce,
+    0x55, 0x48, 0xb4, 0x2e, 0x90, 0x64, 0x83, 0xd0, 0x3d, 0x05, 0xf2, 0xe2, 0xe3, 0xbe, 0xeb, 0x2c,
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+    0x1d, 0x14, 0xff, 0x36, 0x7c, 0x07, 0x90, 0xb9, 0x94, 0x17, 0x47, 0x08, 0x00, 0x00,
+};
+const StaticFile index_html PROGMEM = {(sizeof(index_html_content)/sizeof(index_html_content[0])), index_html_content};
+
+static const uint8_t app_js_content[] PROGMEM = {
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+    0x74, 0xe6, 0x99, 0x1c, 0x86, 0xe9, 0x28, 0xa5, 0x19, 0x29, 0x32, 0xd3, 0xb4, 0x6e, 0x9a, 0xa1,
+    0x30, 0xc0, 0xfe, 0x7c, 0xf3, 0x21, 0xeb, 0x91, 0x60, 0xfb, 0xa8, 0x93, 0x8d, 0x2e, 0x2b, 0x9c,
+    0xe4, 0x3c, 0xcd, 0x75, 0x38, 0x16, 0x66, 0x6f, 0x2a, 0x69, 0x42, 0x44, 0xa8, 0x4e, 0x7d, 0xc5,
+    0xf1, 0x8e, 0x92, 0xdd, 0xd8, 0x77, 0x73, 0x81, 0x44, 0x26, 0xe2, 0x9d, 0xb6, 0x37, 0xf2, 0x59,
+    0x9f, 0xf1, 0x3e, 0x7e, 0xf4, 0xd8, 0x06, 0xe3, 0x5d, 0x90, 0x43, 0xbc, 0x72, 0xfe, 0x72, 0xff,
+    0xce, 0x27, 0x6a, 0x82, 0x7d, 0x8e, 0x2d, 0x83, 0x1b, 0xbb, 0x0c, 0xcb, 0x72, 0xc5, 0x1b, 0xbd,
+    0xaf, 0x0e, 0x38, 0x8f, 0x06, 0x88, 0xed, 0x51, 0xe4, 0x22, 0x72, 0x5d, 0xb9, 0x0c, 0xc9, 0x35,
+    0x83, 0x88, 0xf7, 0x0f, 0xa2, 0xf7, 0x09, 0x4e, 0x84, 0x79, 0x61, 0x50, 0xda, 0xff, 0x8f, 0x08,
+    0x74, 0x2c, 0xc2, 0xc7, 0x2a, 0x45, 0x5a, 0x60, 0x0e, 0xf3, 0x7a, 0x24, 0xbc, 0xac, 0xa1, 0x8d,
+    0x68, 0x9a, 0x8a, 0x43, 0x74, 0xf9, 0x06, 0x55, 0xc8, 0xb1, 0xbb, 0xd8, 0x0d, 0x35, 0x68, 0x6d,
+    0x7b, 0xdb, 0xb5, 0xb8, 0xcf, 0x3e, 0x51, 0x12, 0x19, 0x63, 0x37, 0xab, 0xa1, 0x83, 0xa1, 0xda,
+    0x66, 0xe9, 0xd0, 0x0d, 0xdc, 0x5b, 0x27, 0x9b, 0xd3, 0xe9, 0x74, 0x93, 0xee, 0x96, 0x4d, 0x2c,
+    0x54, 0x15, 0x1d, 0x8d, 0x3b, 0xe6, 0x77, 0x04, 0xad, 0xd6, 0x1a, 0xd3, 0xd6, 0x1a, 0x5a, 0x64,
+    0xf5, 0x88, 0x80, 0x10, 0xe1, 0xe4, 0xda, 0xd9, 0xfa, 0xdb, 0xee, 0x93, 0x9d, 0xdd, 0xdd, 0x3f,
+    0x6d, 0x85, 0x16, 0xe3, 0xf1, 0x31, 0x38, 0xf7, 0x9a, 0x5f, 0xee, 0x94, 0x31, 0xa6, 0xe8, 0xd1,
+    0xe9, 0x1e, 0xeb, 0x2e, 0xcd, 0xa2, 0xd4, 0x77, 0x1d, 0xda, 0x52, 0x2f, 0x73, 0x51, 0xbd, 0x48,
+    0x71, 0xcc, 0x95, 0x8a, 0x83, 0x5a, 0x53, 0x8d, 0x14, 0x64, 0xe0, 0x04, 0xc5, 0xf5, 0x1a, 0xa1,
+    0xd4, 0xa7, 0xf5, 0x9e, 0xc6, 0x2c, 0xe7, 0x35, 0xc9, 0x69, 0xb0, 0x88, 0x67, 0xc8, 0xa3, 0x9e,
+    0x0d, 0x07, 0x29, 0xdd, 0x05, 0x81, 0xb3, 0xe6, 0x41, 0xae, 0x4c, 0x7b, 0xd1, 0x21, 0x8d, 0x87,
+    0xe2, 0x7f, 0x2a, 0xf5, 0xd6, 0x54, 0xa6, 0xf6, 0x7a, 0x9e, 0xb7, 0xc1, 0xc1, 0xe9, 0xdf, 0xdd,
+    0xf3, 0xd1, 0x07, 0xbf, 0x01, 0xdd, 0x89, 0x77, 0x95, 0xce, 0x0d, 0x00, 0x00,
+};
+const StaticFile app_js PROGMEM = {(sizeof(app_js_content)/sizeof(app_js_content[0])), app_js_content};
+
+static const uint8_t md5_js_content[] PROGMEM = {
+    0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xad, 0x59, 0x79, 0x73, 0x1b, 0xb7,
+    0x15, 0xff, 0xbf, 0x9f, 0x42, 0xe2, 0x4c, 0x39, 0xbb, 0xb3, 0x2b, 0x05, 0xf7, 0x61, 0x72, 0xe5,
+    0x89, 0x93, 0x1e, 0xe9, 0x95, 0xb6, 0x69, 0xd2, 0x83, 0x43, 0xcd, 0xd0, 0xd2, 0xd2, 0xbb, 0x89,
+    0x42, 0xaa, 0x58, 0xd0, 0xb2, 0x62, 0xd2, 0x9f, 0xbd, 0x0f, 0xd8, 0x0b, 0x4b, 0x89, 0x3a, 0xac,
+    0x8e, 0x2d, 0x2c, 0x08, 0xbc, 0xf7, 0x80, 0xdf, 0xbb, 0x70, 0x1d, 0x2f, 0x37, 0xab, 0x0b, 0x5b,
+    0xae, 0x57, 0x51, 0xfc, 0x71, 0xb4, 0xa9, 0xf2, 0xa3, 0xca, 0x9a, 0xf2, 0xc2, 0x8e, 0x26, 0xef,
+    0x17, 0xe6, 0xc8, 0xa6, 0x26, 0x1b, 0x95, 0xab, 0xeb, 0x8d, 0x3d, 0x2a, 0xab, 0xa3, 0x72, 0xf5,
+    0x7e, 0x71, 0x55, 0x5e, 0x1e, 0xd9, 0xdb, 0xeb, 0x7c, 0x94, 0x96, 0xd9, 0xfb, 0x35, 0xfc, 0x40,
+    0xc7, 0x59, 0x76, 0x53, 0xae, 0x2e, 0xd7, 0x37, 0xa7, 0x5f, 0x1a, 0xb3, 0xb8, 0x7d, 0xb3, 0x59,
+    0x2e, 0x73, 0x93, 0x16, 0xd9, 0x08, 0x61, 0x42, 0x19, 0x17, 0x52, 0xe9, 0xc5, 0xdb, 0x8b, 0xcb,
+    0x7c, 0x39, 0x3a, 0xad, 0xae, 0xaf, 0x4a, 0x1b, 0x8d, 0x46, 0x71, 0x5a, 0x65, 0x33, 0x4c, 0x54,
+    0x4a, 0x89, 0x14, 0x2a, 0x55, 0x54, 0x29, 0x81, 0x54, 0x7a, 0x42, 0x30, 0x93, 0x4c, 0x51, 0xc1,
+    0xd4, 0x3c, 0xcd, 0xb3, 0x19, 0x4a, 0x55, 0x8a, 0x45, 0x4a, 0xd8, 0x3c, 0x5d, 0x64, 0xb3, 0x51,
+    0x91, 0x7f, 0x18, 0xa5, 0xa3, 0x85, 0x1b, 0x04, 0xbe, 0x97, 0xe5, 0xbb, 0xbc, 0xb2, 0x50, 0x79,
+    0xeb, 0x07, 0x6c, 0x7b, 0xde, 0xb4, 0xbf, 0xde, 0x2e, 0xaa, 0x5c, 0xb0, 0xd1, 0x3c, 0x5d, 0x66,
+    0xa3, 0x2f, 0xdf, 0x7c, 0xf5, 0xf5, 0x6f, 0x7e, 0xfb, 0xbb, 0xdf, 0x7f, 0xf3, 0x87, 0x3f, 0xfe,
+    0xe9, 0xcf, 0x7f, 0xf9, 0xf6, 0xaf, 0x7f, 0xfb, 0xfb, 0x77, 0xff, 0xf8, 0xfe, 0x87, 0x7f, 0xfe,
+    0xeb, 0xdf, 0xff, 0xa9, 0x67, 0xf6, 0xae, 0x28, 0x7f, 0xfc, 0xe9, 0xea, 0xe7, 0xd5, 0xfa, 0xfa,
+    0xbf, 0xa6, 0xb2, 0x9b, 0xf7, 0x37, 0x1f, 0x6e, 0x7f, 0xe9, 0x67, 0x9f, 0x7c, 0x11, 0xce, 0x7c,
+    0x95, 0xcd, 0xe6, 0x93, 0x72, 0x19, 0x95, 0xf1, 0x47, 0xa7, 0xa1, 0x75, 0xb6, 0xca, 0x6f, 0x8e,
+    0x02, 0xe4, 0x91, 0x50, 0xf1, 0xc4, 0xfa, 0xd6, 0xef, 0xcb, 0x95, 0x55, 0xbe, 0x2b, 0x5a, 0x3b,
+    0xc6, 0xb6, 0x8d, 0x92, 0xb6, 0x71, 0xe7, 0x2b, 0xa7, 0x65, 0xe5, 0xbf, 0xdb, 0x6d, 0x34, 0xf8,
+    0x9d, 0x75, 0xa6, 0xb1, 0xf1, 0x47, 0x93, 0xdb, 0x8d, 0x59, 0x8d, 0x66, 0xeb, 0xb7, 0x3f, 0xe6,
+    0x17, 0xb6, 0x1e, 0x71, 0x3e, 0xca, 0xb2, 0xec, 0x5b, 0xdf, 0x70, 0x7a, 0x6d, 0xd6, 0x76, 0xed,
+    0x2c, 0x73, 0x6a, 0xd7, 0xdf, 0x81, 0x09, 0x57, 0xef, 0x4e, 0x2f, 0x16, 0x57, 0x57, 0xc0, 0xba,
+    0x8b, 0xd3, 0x72, 0x3c, 0x3e, 0x0e, 0xe6, 0x08, 0x03, 0xfc, 0x50, 0xe6, 0x37, 0xe3, 0x71, 0x74,
+    0xb7, 0xf1, 0xbe, 0x41, 0xeb, 0x31, 0x61, 0x30, 0x27, 0x7f, 0xbd, 0x3c, 0xb2, 0xe3, 0xb1, 0x3d,
+    0xad, 0xf5, 0xde, 0xd7, 0x4e, 0x2f, 0xd6, 0x2b, 0xf0, 0x9d, 0xcd, 0x85, 0x5d, 0x1b, 0x98, 0x56,
+    0x20, 0x79, 0x17, 0x7b, 0x67, 0xba, 0x0f, 0xcf, 0x51, 0xd7, 0x64, 0xba, 0x26, 0xa7, 0xa6, 0x4d,
+    0x74, 0x8c, 0xe2, 0xd3, 0xcd, 0xf5, 0xe5, 0xc2, 0xe6, 0xd0, 0x35, 0xb3, 0xf3, 0x28, 0xde, 0xed,
+    0x26, 0x2d, 0x35, 0xf4, 0x03, 0x3d, 0x58, 0xc1, 0xc4, 0xab, 0x19, 0x9a, 0x67, 0xab, 0x19, 0x16,
+    0xbe, 0x74, 0x05, 0x71, 0x05, 0x75, 0x05, 0x73, 0x05, 0x77, 0x85, 0xef, 0x95, 0xae, 0x50, 0xae,
+    0xd0, 0x9e, 0xb8, 0x66, 0xf4, 0x3c, 0xd8, 0x33, 0x61, 0xcf, 0x85, 0x3d, 0x1b, 0x06, 0x3e, 0x94,
+    0xda, 0xa2, 0xac, 0x4e, 0xdf, 0x5e, 0xad, 0x2f, 0x7e, 0xaa, 0xb2, 0x55, 0xf3, 0xcb, 0x63, 0x52,
+    0x99, 0x9d, 0xe4, 0x57, 0x10, 0x2e, 0xbd, 0x2b, 0x14, 0xf7, 0xbb, 0x42, 0xc8, 0xb3, 0xe7, 0x15,
+    0x45, 0x3c, 0x1c, 0x60, 0xcf, 0x3f, 0x8a, 0x78, 0xe7, 0x87, 0x08, 0x69, 0x20, 0x28, 0x1e, 0xf9,
+    0x37, 0xaf, 0x87, 0x2c, 0x50, 0x56, 0x7f, 0x71, 0xf3, 0x25, 0xcd, 0x97, 0xd6, 0xdf, 0xca, 0x2e,
+    0x8c, 0xad, 0xab, 0x6f, 0x6f, 0x6d, 0x5e, 0x35, 0xbd, 0x6f, 0x7c, 0xbd, 0x01, 0xbe, 0x2c, 0x57,
+    0x10, 0xf0, 0xbf, 0xe4, 0x97, 0x4d, 0xe7, 0xa2, 0x2a, 0xa0, 0x7e, 0x8c, 0xdb, 0x5e, 0x08, 0x96,
+    0xec, 0x18, 0xed, 0x36, 0x81, 0xf3, 0xd5, 0x26, 0x1b, 0x58, 0x1a, 0x34, 0x74, 0x3c, 0x14, 0xd7,
+    0xe8, 0x0b, 0xb2, 0x40, 0xeb, 0x50, 0x2e, 0xa2, 0x46, 0x95, 0x77, 0xdb, 0x11, 0x24, 0x94, 0xca,
+    0x73, 0xb5, 0x7e, 0xe7, 0x1b, 0x6c, 0x61, 0xd6, 0x37, 0x47, 0xc6, 0x11, 0xae, 0x36, 0x57, 0x57,
+    0xe0, 0x61, 0x36, 0x6c, 0x2b, 0x9d, 0x23, 0x1e, 0xf4, 0xc0, 0xf8, 0x4e, 0x40, 0xda, 0xb8, 0x33,
+    0xdf, 0xf1, 0x30, 0xea, 0xa0, 0x6b, 0xbb, 0x05, 0x71, 0x77, 0x43, 0x03, 0x7a, 0xe2, 0x6e, 0xcc,
+    0xc2, 0x21, 0x5f, 0xae, 0x4d, 0xe4, 0xa0, 0x2c, 0xd2, 0x25, 0xc4, 0x37, 0x4a, 0xd7, 0x99, 0x3d,
+    0xbd, 0xca, 0x57, 0xef, 0x6c, 0x91, 0xde, 0x66, 0x81, 0xd9, 0xd2, 0x4d, 0x16, 0xfa, 0xc1, 0x64,
+    0x35, 0x5d, 0x4f, 0x3c, 0xc4, 0x40, 0xaf, 0x10, 0x8d, 0x7b, 0x5a, 0xbe, 0x75, 0xae, 0x7d, 0xeb,
+    0x5c, 0x3b, 0xf5, 0xa5, 0xab, 0xbb, 0x82, 0xb8, 0x82, 0xba, 0x82, 0xb9, 0x82, 0xbb, 0xc2, 0xf7,
+    0x4a, 0x57, 0x28, 0x57, 0x68, 0x4f, 0x5c, 0xb3, 0x7b, 0x1e, 0xec, 0x99, 0xb0, 0xe7, 0xc2, 0x9e,
+    0xcd, 0x3b, 0x78, 0x9c, 0x16, 0xb1, 0xf7, 0x60, 0x87, 0x64, 0x19, 0x78, 0x86, 0x9b, 0xe2, 0x78,
+    0xbc, 0x9c, 0x0a, 0x36, 0x49, 0x92, 0x55, 0xbc, 0x99, 0x2d, 0x93, 0x64, 0x9e, 0xd9, 0xd9, 0x6a,
+    0x5e, 0xeb, 0xed, 0x11, 0xfa, 0xdb, 0xd9, 0xf2, 0xec, 0x8c, 0xcc, 0xb7, 0x9e, 0x63, 0x3a, 0xcd,
+    0x67, 0x74, 0xec, 0x04, 0x04, 0x21, 0xf3, 0x88, 0x80, 0x68, 0x01, 0xaa, 0xbc, 0x28, 0x16, 0xe6,
+    0xab, 0xf5, 0x65, 0xfe, 0xa5, 0x8d, 0x56, 0x71, 0x3c, 0x85, 0x15, 0xe3, 0x75, 0x33, 0x91, 0xc5,
+    0xab, 0xc5, 0x94, 0x20, 0xa6, 0x5e, 0x47, 0x4d, 0x03, 0xd6, 0x64, 0xbb, 0x38, 0x3b, 0x13, 0x69,
+    0xfb, 0x9b, 0xa8, 0xad, 0xa0, 0xe3, 0x45, 0x0c, 0x84, 0x9c, 0x13, 0x2d, 0xb6, 0xd0, 0x9d, 0x71,
+    0x49, 0x19, 0xeb, 0x78, 0x08, 0x61, 0x8e, 0x07, 0x93, 0x90, 0xc9, 0x09, 0x19, 0x0b, 0x7a, 0x57,
+    0x0e, 0xcc, 0x48, 0x70, 0x4e, 0x45, 0x12, 0x45, 0x18, 0x11, 0xd7, 0x34, 0x9d, 0x62, 0xb4, 0xf5,
+    0xf5, 0xc1, 0x54, 0xdd, 0xf4, 0xe3, 0x96, 0x9f, 0x30, 0xe4, 0xc7, 0x50, 0x7b, 0x63, 0x60, 0xb2,
+    0x37, 0xc8, 0xa1, 0x71, 0x9f, 0xa4, 0xee, 0x43, 0xda, 0xea, 0xcc, 0xb0, 0xe8, 0x6d, 0xd0, 0x69,
+    0xae, 0xeb, 0x8c, 0x5a, 0xe5, 0xc5, 0x3d, 0x55, 0x1a, 0xf4, 0xb6, 0x53, 0xe9, 0x7b, 0xef, 0xd5,
+    0x6a, 0xcf, 0xd1, 0x29, 0xf6, 0xb0, 0xc0, 0x06, 0xee, 0x33, 0x46, 0x7c, 0xa6, 0xfe, 0x83, 0xd9,
+    0xb4, 0x26, 0x78, 0x70, 0x36, 0xde, 0x20, 0xff, 0xc7, 0xf9, 0xd6, 0x59, 0xf8, 0x6a, 0x51, 0x59,
+    0x97, 0x52, 0xbf, 0x59, 0x5d, 0xe6, 0x1f, 0xb2, 0x65, 0xda, 0xe7, 0xdb, 0x24, 0x5b, 0x9e, 0xf4,
+    0xf6, 0x4c, 0x97, 0x67, 0x99, 0x00, 0x1d, 0x06, 0xa9, 0x79, 0x79, 0x22, 0x58, 0xda, 0x65, 0x84,
+    0x28, 0x4e, 0x07, 0xd9, 0x01, 0xc5, 0xaf, 0x42, 0xda, 0x5d, 0xb3, 0x76, 0xf6, 0xf2, 0xcf, 0x18,
+    0xd1, 0x4c, 0x0b, 0x49, 0x34, 0xef, 0x32, 0xcb, 0x9b, 0x7a, 0xe0, 0x9e, 0xe8, 0x8b, 0x8e, 0x48,
+    0x4c, 0xa7, 0x28, 0xdd, 0x5f, 0x0d, 0x7c, 0xf5, 0xd7, 0x3d, 0x4d, 0x3d, 0x87, 0xdd, 0x2e, 0x0d,
+    0x33, 0x7e, 0x9b, 0xd5, 0xb3, 0x60, 0x23, 0x79, 0x5f, 0xca, 0xdf, 0x5b, 0x51, 0x8e, 0x51, 0xbd,
+    0xc3, 0x1c, 0xa4, 0x49, 0x93, 0xdd, 0xd5, 0xda, 0xc4, 0xce, 0x4c, 0xad, 0xe7, 0x0a, 0x74, 0x6b,
+    0xe6, 0xa9, 0x01, 0x8f, 0x13, 0xc3, 0x6c, 0xb9, 0xdd, 0x0e, 0x14, 0xe5, 0xf2, 0xa6, 0xf5, 0x79,
+    0xd3, 0x97, 0xae, 0xee, 0x0a, 0xe2, 0x0a, 0xea, 0x0a, 0xe6, 0x0a, 0xee, 0x0a, 0xdf, 0x2b, 0x5d,
+    0xa1, 0x5c, 0xa1, 0x3d, 0x71, 0xcd, 0xee, 0x79, 0xb0, 0x67, 0xc2, 0x9e, 0x0b, 0x7b, 0xb6, 0x26,
+    0x6f, 0x36, 0x3f, 0x3b, 0x35, 0x4d, 0xa7, 0x34, 0xad, 0x3b, 0x03, 0x5d, 0x43, 0xe3, 0x36, 0x30,
+    0x09, 0xc0, 0xd0, 0xa1, 0x49, 0xf7, 0x34, 0xe9, 0x1a, 0x43, 0x2d, 0x36, 0x3b, 0xf0, 0xb4, 0x4c,
+    0x61, 0xa9, 0x4c, 0x73, 0xd8, 0x04, 0x07, 0xba, 0x9a, 0xf4, 0x6b, 0xf0, 0x6b, 0x93, 0x45, 0x91,
+    0xfb, 0xb3, 0xfe, 0x6f, 0x01, 0xf0, 0x4f, 0x84, 0x42, 0x4a, 0x0a, 0x4d, 0x25, 0xf8, 0xa4, 0xdc,
+    0x5a, 0x37, 0x34, 0x8f, 0x4f, 0x88, 0xc4, 0x92, 0x52, 0x25, 0x35, 0x58, 0x3b, 0x3e, 0x8f, 0x4a,
+    0xa0, 0x87, 0xbf, 0xbe, 0xf9, 0x3c, 0x2a, 0xa0, 0x09, 0xfe, 0x4e, 0xa0, 0x81, 0x70, 0xc5, 0xb0,
+    0x66, 0xe7, 0x04, 0x21, 0x46, 0xb1, 0x42, 0x12, 0x8f, 0x6d, 0x9c, 0x2c, 0x40, 0x97, 0x27, 0x18,
+    0x4b, 0x45, 0x91, 0x44, 0x2e, 0xa4, 0x30, 0xd9, 0x16, 0x4e, 0x3c, 0x8a, 0x13, 0xeb, 0xc4, 0x8e,
+    0x43, 0x79, 0xb0, 0x62, 0x02, 0x07, 0x71, 0x1c, 0x44, 0x30, 0x60, 0x92, 0xdc, 0xb1, 0xc8, 0x6d,
+    0x09, 0x2c, 0x98, 0xc7, 0x49, 0x51, 0xb3, 0x14, 0x0d, 0x25, 0x05, 0x4a, 0x8a, 0x05, 0xe1, 0x9a,
+    0x20, 0x0d, 0x94, 0x84, 0x6c, 0x8d, 0xa3, 0x04, 0xe1, 0x25, 0x50, 0xbe, 0x8a, 0x1a, 0x7f, 0x29,
+    0x50, 0xeb, 0x2b, 0x05, 0x86, 0x93, 0x48, 0xb3, 0xc3, 0x49, 0xbd, 0x22, 0x92, 0x56, 0x13, 0x89,
+    0xc7, 0xd2, 0xec, 0x7a, 0xe2, 0x73, 0x33, 0x8e, 0xca, 0xf3, 0xc2, 0x0f, 0x13, 0x28, 0x48, 0x84,
+    0x0a, 0x4a, 0x4c, 0xa0, 0x18, 0x60, 0x37, 0x8d, 0x42, 0xa0, 0x5a, 0x9e, 0xdb, 0x31, 0xfc, 0x2e,
+    0xe3, 0x46, 0x05, 0x54, 0x69, 0x2e, 0x18, 0x57, 0xe2, 0x5e, 0x15, 0xd8, 0x73, 0xd3, 0x20, 0x4f,
+    0x04, 0x12, 0x18, 0x71, 0x85, 0xf5, 0xa3, 0xc0, 0x11, 0x63, 0x9c, 0x70, 0x4a, 0xd1, 0x5d, 0xe0,
+    0xf1, 0x5d, 0x68, 0x45, 0x08, 0x88, 0x01, 0xbb, 0x14, 0x0c, 0x2b, 0xa5, 0xe5, 0xe7, 0x00, 0xe2,
+    0xf3, 0x04, 0x83, 0x9d, 0x91, 0x42, 0x8c, 0x3c, 0x8c, 0x48, 0xc0, 0x48, 0x0c, 0x9c, 0x83, 0x62,
+    0xca, 0xf0, 0x83, 0x90, 0xe4, 0xfc, 0x84, 0x71, 0x89, 0xb8, 0x56, 0xf4, 0x2e, 0xa0, 0x47, 0xf0,
+    0x28, 0x98, 0x8f, 0x94, 0x08, 0x51, 0xce, 0xf0, 0x67, 0x59, 0x48, 0xc3, 0x34, 0xb5, 0x73, 0x60,
+    0xc6, 0xb0, 0x7c, 0x10, 0x10, 0x44, 0xfb, 0x09, 0x23, 0xc8, 0xe7, 0xf6, 0xc3, 0x60, 0xb0, 0xf3,
+    0x7a, 0xad, 0x11, 0x43, 0x30, 0x21, 0xf2, 0x6c, 0x3c, 0x90, 0x46, 0x12, 0x08, 0x21, 0x26, 0x10,
+    0x15, 0x8a, 0x7c, 0x96, 0xcb, 0x81, 0x87, 0x30, 0x04, 0x3a, 0xc7, 0x08, 0x3f, 0x8c, 0xc7, 0xf9,
+    0x02, 0x47, 0x60, 0x4d, 0x42, 0x34, 0x7a, 0x18, 0x94, 0x37, 0x3b, 0x15, 0x9c, 0x72, 0x4a, 0xee,
+    0x09, 0xb7, 0x1e, 0x54, 0x3b, 0x25, 0x98, 0xcd, 0xb8, 0x87, 0x08, 0xe8, 0x06, 0x31, 0x81, 0x05,
+    0x97, 0x5a, 0x70, 0xec, 0x46, 0xe5, 0x35, 0x40, 0xd9, 0x02, 0xec, 0xbd, 0x07, 0x09, 0xcd, 0x11,
+    0x16, 0xd4, 0xa9, 0x41, 0xd7, 0x28, 0x68, 0x83, 0xc2, 0x01, 0xee, 0x34, 0x61, 0x9d, 0x02, 0x03,
+    0xfd, 0x27, 0x82, 0x51, 0x48, 0x2c, 0x12, 0x7b, 0x4b, 0xb1, 0x1a, 0x94, 0x6a, 0x40, 0xf5, 0x81,
+    0x4d, 0x25, 0x84, 0xa6, 0xa4, 0xc8, 0x1b, 0x09, 0xd5, 0x78, 0xc8, 0x67, 0xe0, 0xe1, 0xf3, 0x13,
+    0x89, 0x30, 0x87, 0x08, 0xd7, 0xf8, 0x20, 0x1e, 0x70, 0x9e, 0x84, 0x2a, 0x40, 0x83, 0xbc, 0x93,
+    0x3f, 0x1d, 0x0e, 0x48, 0x17, 0x02, 0xb9, 0x8c, 0x48, 0xf9, 0x61, 0x38, 0xcc, 0xd9, 0x1c, 0x36,
+    0x3d, 0x52, 0x31, 0xf5, 0x42, 0x38, 0x7a, 0x9e, 0x70, 0xa1, 0x18, 0x03, 0x25, 0xaa, 0xc3, 0x70,
+    0x9c, 0xef, 0x20, 0xac, 0x15, 0xb8, 0xa9, 0xf7, 0x9d, 0x27, 0x03, 0x72, 0xf9, 0x4b, 0x49, 0x2a,
+    0xa8, 0x16, 0xf8, 0x30, 0x1e, 0x17, 0xd6, 0x60, 0x79, 0x4e, 0xc1, 0x41, 0xf1, 0x0b, 0x01, 0xb9,
+    0x80, 0x80, 0xe8, 0x66, 0x42, 0x61, 0x26, 0xe4, 0x41, 0x48, 0xb0, 0xf6, 0x70, 0x0c, 0x81, 0x03,
+    0x2a, 0x7c, 0x0e, 0x1e, 0xe9, 0x12, 0x90, 0x0b, 0x0b, 0x05, 0xc9, 0xee, 0x30, 0x20, 0xec, 0x96,
+    0x36, 0x4d, 0xc0, 0x94, 0x12, 0x36, 0xc1, 0x0f, 0x21, 0xca, 0xb3, 0x0e, 0x54, 0x54, 0x65, 0x0e,
+    0xc4, 0x79, 0x87, 0xab, 0x02, 0x69, 0xb5, 0xc7, 0xc1, 0x34, 0xc1, 0xe3, 0x40, 0x0e, 0xab, 0xc1,
+    0xa8, 0x06, 0x4c, 0xad, 0xbc, 0x13, 0x02, 0x31, 0xcd, 0x25, 0x60, 0xf6, 0x53, 0xc2, 0x35, 0x18,
+    0xdc, 0x81, 0x09, 0xd2, 0x48, 0x0e, 0xf0, 0x9b, 0xb0, 0xc1, 0x8a, 0x6a, 0x44, 0x11, 0xf7, 0x69,
+    0x0b, 0x8b, 0x1a, 0x87, 0x68, 0x70, 0xb4, 0x56, 0x07, 0xa8, 0x48, 0x73, 0xee, 0x72, 0x2d, 0xa1,
+    0x1e, 0x82, 0xfe, 0x0c, 0x04, 0x2e, 0x07, 0x38, 0x41, 0xb0, 0x7a, 0x0b, 0x74, 0x3f, 0x0a, 0xe6,
+    0x52, 0x8e, 0x24, 0x4a, 0x83, 0xe3, 0x3f, 0x15, 0x85, 0x74, 0x62, 0x39, 0xd3, 0xb2, 0x4e, 0x1a,
+    0xf7, 0x62, 0x40, 0xce, 0x73, 0x35, 0x18, 0x0b, 0x09, 0x86, 0x5e, 0x88, 0x82, 0x42, 0xae, 0x51,
+    0x30, 0x4b, 0x8d, 0x25, 0xbb, 0x1f, 0x85, 0xcb, 0x33, 0x5c, 0x41, 0x60, 0x12, 0x42, 0x9e, 0x08,
+    0x02, 0xdc, 0x15, 0xa8, 0x39, 0xc1, 0x5a, 0xea, 0x03, 0x20, 0xc4, 0x3c, 0x91, 0x02, 0x11, 0x8d,
+    0x95, 0x7e, 0x19, 0x02, 0x58, 0xfd, 0x40, 0x0b, 0x54, 0x30, 0xa6, 0xe4, 0xfd, 0x00, 0x9c, 0xe3,
+    0x32, 0x82, 0x15, 0xe6, 0xaa, 0x4e, 0x40, 0x4f, 0x71, 0x26, 0x58, 0x2e, 0xc0, 0xba, 0x92, 0x01,
+    0x0a, 0x74, 0x00, 0x02, 0x88, 0xd5, 0x1a, 0xf6, 0x30, 0x0a, 0x96, 0x81, 0x07, 0x30, 0xf4, 0xf1,
+    0x1d, 0x46, 0x77, 0x64, 0xb6, 0x9f, 0xba, 0x3c, 0x0e, 0x59, 0x48, 0x50, 0x04, 0x19, 0x0b, 0xc4,
+    0x88, 0x1a, 0x80, 0x68, 0x00, 0x6c, 0x3f, 0x95, 0x5d, 0x90, 0xc2, 0xbe, 0x52, 0x69, 0xcc, 0x30,
+    0xaf, 0x8f, 0x83, 0x1e, 0x04, 0x69, 0x41, 0x84, 0xc1, 0x1d, 0x15, 0xdb, 0x4f, 0x41, 0x96, 0x63,
+    0x2e, 0x0f, 0x31, 0x8d, 0x3c, 0x1f, 0xaf, 0x81, 0xc8, 0x06, 0xc8, 0xf6, 0x93, 0x6d, 0x97, 0x00,
+    0x88, 0x36, 0xea, 0x52, 0xb0, 0xc3, 0x82, 0xeb, 0xd0, 0xc6, 0xcf, 0x05, 0xe3, 0x17, 0x7f, 0xd8,
+    0xcc, 0x30, 0x88, 0x6d, 0x89, 0x0f, 0xc3, 0xf1, 0x39, 0x14, 0xce, 0x5a, 0x0a, 0xd2, 0x89, 0x78,
+    0x06, 0x1c, 0xef, 0xfa, 0x1c, 0x73, 0x42, 0x1f, 0xc0, 0x82, 0x5d, 0xf6, 0x00, 0xc0, 0x04, 0xdc,
+    0x5a, 0xbf, 0x04, 0x8d, 0xcb, 0xe1, 0x90, 0xe9, 0x61, 0xff, 0x47, 0xb9, 0x3e, 0x0c, 0xc6, 0xad,
+    0x70, 0x10, 0x8b, 0x70, 0x52, 0xf0, 0x16, 0x7c, 0x22, 0x16, 0xb7, 0x3f, 0xe0, 0xc2, 0xad, 0x40,
+    0xb0, 0xaa, 0x3e, 0x84, 0x06, 0x42, 0x14, 0x43, 0xa2, 0xc1, 0x1c, 0x0b, 0xf6, 0x22, 0x38, 0xde,
+    0x17, 0x38, 0xe8, 0x0e, 0x8e, 0x33, 0x0f, 0xa0, 0xf1, 0x87, 0x1e, 0x48, 0xbf, 0x18, 0x56, 0x12,
+    0xfd, 0x74, 0x3c, 0x60, 0x79, 0x09, 0xda, 0x52, 0x92, 0x78, 0x5d, 0x1d, 0x82, 0x03, 0xf1, 0x4a,
+    0xc1, 0xcf, 0xc0, 0x3f, 0xea, 0xa8, 0xd9, 0x03, 0x13, 0x1c, 0xf5, 0xa2, 0xee, 0x72, 0x37, 0xe9,
+    0x8e, 0x68, 0xb4, 0xa3, 0x29, 0x70, 0x66, 0x06, 0x87, 0xbc, 0xb4, 0xbd, 0xfb, 0x2d, 0x83, 0x13,
+    0x5d, 0xdf, 0x4e, 0xb3, 0x22, 0x69, 0xc9, 0xd5, 0x70, 0xa4, 0xec, 0x18, 0xc7, 0xaf, 0xfa, 0xd1,
+    0xea, 0xaf, 0xc7, 0xda, 0x0d, 0xd5, 0x7c, 0xbd, 0xa6, 0xba, 0x81, 0x9a, 0x6f, 0x30, 0xf1, 0xf6,
+    0xc6, 0xb9, 0xa0, 0x35, 0xe8, 0xbd, 0x43, 0xaf, 0xbb, 0x17, 0xe9, 0xcf, 0xbc, 0x83, 0x5b, 0x82,
+    0x28, 0x0e, 0xef, 0x08, 0x0e, 0x9c, 0xf9, 0xda, 0x9b, 0x6b, 0x3a, 0x69, 0xee, 0x40, 0x8a, 0x19,
+    0x98, 0x90, 0x8d, 0x5d, 0xb6, 0x2a, 0xc0, 0x0d, 0xc7, 0xd6, 0x7d, 0xad, 0xbf, 0xe1, 0xa9, 0xdb,
+    0xa0, 0xae, 0xfa, 0x2a, 0x41, 0x7d, 0x1d, 0x8b, 0xa0, 0x3d, 0xa4, 0x69, 0xc5, 0x99, 0x81, 0x64,
+    0xd3, 0x34, 0x75, 0x92, 0x4d, 0x2f, 0xd9, 0x04, 0x92, 0x4d, 0x20, 0xd9, 0x04, 0x92, 0x4d, 0x20,
+    0xb9, 0x1c, 0x48, 0x2e, 0x9b, 0xa6, 0x4e, 0x72, 0xd9, 0x4b, 0x2e, 0x03, 0xc9, 0x65, 0x20, 0xb9,
+    0x0c, 0x24, 0x97, 0x81, 0xe4, 0x6a, 0x20, 0xb9, 0x6a, 0x9a, 0x3a, 0xc9, 0x55, 0x2f, 0xb9, 0x0a,
+    0x24, 0x57, 0x81, 0xe4, 0x2a, 0x90, 0x5c, 0xb5, 0x92, 0x87, 0x66, 0x6c, 0x1f, 0x9d, 0xb2, 0x3d,
+    0xdb, 0x0e, 0x88, 0xea, 0x37, 0xbb, 0x97, 0x99, 0xbb, 0xd8, 0x33, 0xf7, 0x8c, 0x70, 0x30, 0x71,
+    0xea, 0x6d, 0x0a, 0xd5, 0xb4, 0xb6, 0x62, 0x53, 0x83, 0x99, 0xba, 0x9a, 0x23, 0x31, 0xa9, 0x69,
+    0x49, 0x4c, 0x47, 0x62, 0x06, 0x24, 0x65, 0x5a, 0xb6, 0x24, 0x65, 0x47, 0x52, 0x0e, 0x48, 0x8a,
+    0xb4, 0x68, 0x49, 0x8a, 0x8e, 0xa4, 0x68, 0x49, 0xf6, 0x74, 0xe2, 0x1f, 0x24, 0xb3, 0xbb, 0x0a,
+    0xb8, 0x4b, 0x54, 0x3f, 0x33, 0x3c, 0xae, 0x98, 0xfd, 0x07, 0x26, 0x58, 0x7a, 0x41, 0x49, 0xfb,
+    0xef, 0x46, 0x36, 0x6e, 0x43, 0xc1, 0xf8, 0x9b, 0xb0, 0x56, 0x9b, 0xfe, 0x16, 0xac, 0x51, 0xa8,
+    0xf1, 0xb7, 0x61, 0xed, 0xb5, 0x89, 0xbf, 0x15, 0xab, 0xd5, 0x9a, 0xda, 0x21, 0x88, 0xfa, 0xc9,
+    0x22, 0x3b, 0x30, 0xe5, 0x21, 0xa9, 0x7f, 0x72, 0x0d, 0x51, 0xb4, 0xef, 0x23, 0xcd, 0x2d, 0x56,
+    0x36, 0x1a, 0xb5, 0xe1, 0xea, 0x65, 0x44, 0x71, 0x9a, 0x67, 0x68, 0x92, 0x43, 0x5e, 0x9c, 0xc4,
+    0x36, 0xab, 0x66, 0xb9, 0xbb, 0x57, 0x35, 0x6d, 0xa5, 0x6c, 0x2b, 0x90, 0xbf, 0x97, 0x33, 0x9f,
+    0x97, 0xe7, 0xc9, 0x72, 0x26, 0x28, 0x1c, 0x76, 0xdd, 0xa6, 0xc6, 0xe5, 0x48, 0x16, 0xb7, 0x4d,
+    0x90, 0x85, 0x88, 0xcf, 0xae, 0xa2, 0x6d, 0x2a, 0xe7, 0xad, 0x1e, 0xbc, 0xec, 0x7d, 0x39, 0x4e,
+    0xc6, 0x58, 0xc0, 0x42, 0x32, 0xca, 0xb2, 0xd1, 0x2e, 0x6d, 0x1e, 0xb1, 0x7f, 0xbe, 0xe4, 0x77,
+    0xee, 0xe0, 0xb2, 0xdb, 0xc8, 0xbf, 0x3e, 0xc7, 0x13, 0x7b, 0x7a, 0x61, 0xf2, 0xc1, 0x03, 0xd7,
+    0xf0, 0xd9, 0x72, 0x97, 0xda, 0x3b, 0x4f, 0x60, 0xfd, 0xcb, 0x66, 0xcb, 0x1d, 0x05, 0x4f, 0x9b,
+    0xbb, 0x49, 0xab, 0x24, 0x03, 0xaa, 0x30, 0xd3, 0x45, 0xf3, 0x80, 0x34, 0x49, 0x12, 0x53, 0x0f,
+    0x5f, 0x66, 0x8b, 0x99, 0x99, 0x4f, 0xec, 0xac, 0x9c, 0xc3, 0x44, 0xca, 0xb8, 0xbb, 0xeb, 0xdd,
+    0x45, 0x31, 0xfc, 0x9f, 0xfc, 0xea, 0x7f, 0xf1, 0xc2, 0x99, 0x50, 0xc3, 0x1f, 0x00, 0x00,
+};
+const StaticFile md5_js PROGMEM = {(sizeof(md5_js_content)/sizeof(md5_js_content[0])), md5_js_content};
+
+static const uint8_t style_css_content[] PROGMEM = {
+    0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x9d, 0x53, 0x5d, 0x6b, 0xdb, 0x30,
+    0x14, 0x7d, 0xdf, 0xaf, 0x08, 0x94, 0x41, 0x0b, 0x76, 0xb0, 0x9b, 0x26, 0x59, 0x64, 0xf6, 0xb0,
+    0x3d, 0x8c, 0xed, 0x61, 0x4f, 0x65, 0x4f, 0xa3, 0x14, 0x7d, 0x5c, 0xd9, 0x22, 0xb2, 0x25, 0xa4,
+    0xeb, 0x26, 0x99, 0xf1, 0x7f, 0x9f, 0xfc, 0x11, 0x37, 0x69, 0x32, 0x28, 0xc3, 0x20, 0xb8, 0x1f,
+    0xd2, 0x39, 0xf7, 0xdc, 0x63, 0x66, 0xc4, 0x21, 0x2a, 0xb0, 0xd4, 0x8d, 0xa5, 0x42, 0xa8, 0x2a,
+    0x27, 0x49, 0x56, 0x52, 0x97, 0xab, 0x8a, 0x24, 0x2d, 0xeb, 0x8a, 0xac, 0x46, 0x34, 0x55, 0xa4,
+    0x2a, 0x5b, 0xe3, 0x6f, 0x3c, 0x58, 0xf8, 0x6c, 0xa9, 0xf7, 0x3b, 0xe3, 0xc4, 0xd3, 0x69, 0x12,
+    0x61, 0x8f, 0x4f, 0x8d, 0x34, 0x15, 0xc6, 0x5e, 0xfd, 0x01, 0x92, 0xae, 0xec, 0x3e, 0xeb, 0x43,
+    0x49, 0x4b, 0xa5, 0x0f, 0x24, 0xa6, 0xd6, 0x6a, 0x88, 0xfd, 0xc1, 0x23, 0x94, 0xd1, 0x57, 0xad,
+    0xaa, 0xed, 0x4f, 0xca, 0x1f, 0xfb, 0xf0, 0x5b, 0xe8, 0x8b, 0x1e, 0x21, 0x37, 0x30, 0xfb, 0xf5,
+    0x23, 0xfa, 0x0e, 0xfa, 0x05, 0x50, 0x71, 0x1a, 0x7d, 0x71, 0x8a, 0xea, 0xc8, 0xd3, 0xca, 0xc7,
+    0x1e, 0x9c, 0x92, 0xed, 0x1c, 0x15, 0x6a, 0x98, 0xb8, 0xa6, 0x89, 0xdd, 0xcf, 0xfa, 0x63, 0x42,
+    0xdb, 0x81, 0xca, 0x0b, 0x24, 0xab, 0x24, 0xc9, 0x18, 0xe5, 0xdb, 0xdc, 0x99, 0xba, 0x12, 0x31,
+    0x37, 0xda, 0x38, 0x72, 0x03, 0x52, 0xde, 0xcb, 0x65, 0xc6, 0x02, 0x79, 0x70, 0x31, 0x33, 0x61,
+    0xb2, 0x92, 0xa4, 0xe1, 0xba, 0x37, 0x5a, 0x89, 0xd9, 0x8d, 0xd8, 0x40, 0x02, 0xeb, 0x6c, 0xec,
+    0xbe, 0x5f, 0xaf, 0x80, 0x3d, 0x64, 0x27, 0x33, 0x2d, 0xed, 0xbe, 0x9d, 0x33, 0x6d, 0xf8, 0xf6,
+    0x8c, 0x42, 0x3b, 0x97, 0xb5, 0xd6, 0xf1, 0x4e, 0x09, 0x2c, 0x9a, 0xfe, 0x0c, 0xe9, 0xe4, 0x63,
+    0xc0, 0xd9, 0x77, 0x17, 0xbb, 0xb6, 0x09, 0xb2, 0x6b, 0x36, 0xae, 0x7c, 0xd6, 0x94, 0xc1, 0x89,
+    0xe8, 0xb3, 0x64, 0xb6, 0xb8, 0x1c, 0x61, 0xec, 0xed, 0x65, 0x6e, 0x86, 0xb5, 0x4c, 0xac, 0x7b,
+    0x2e, 0x7d, 0xd9, 0xd7, 0xec, 0xec, 0xb5, 0x18, 0x8d, 0x25, 0xe1, 0xb5, 0xf6, 0x5d, 0x3b, 0x8b,
+    0x3c, 0x68, 0xe0, 0xd8, 0x8c, 0x0c, 0x1d, 0x15, 0xaa, 0xf6, 0xe4, 0x21, 0x90, 0x19, 0x32, 0xa7,
+    0xfa, 0xf0, 0x0d, 0xe7, 0x5c, 0x66, 0x47, 0xd6, 0xeb, 0x50, 0xd9, 0x84, 0x46, 0x53, 0x63, 0x58,
+    0x27, 0x04, 0xc7, 0x5c, 0x43, 0x24, 0xd2, 0xf0, 0xda, 0x5f, 0xe0, 0x8e, 0xe9, 0x01, 0x7d, 0x08,
+    0x9a, 0x5e, 0xb0, 0x82, 0x0a, 0xb3, 0xeb, 0x15, 0xe9, 0x37, 0xeb, 0x72, 0x46, 0x6f, 0x93, 0xa8,
+    0xfb, 0xe6, 0xe9, 0xf2, 0xae, 0x1d, 0xfc, 0x48, 0x84, 0xf2, 0x94, 0x69, 0x10, 0x57, 0x8d, 0x79,
+    0xb5, 0x3a, 0xa0, 0x4e, 0x95, 0x11, 0xf8, 0x18, 0x37, 0x97, 0x6e, 0x91, 0x69, 0x70, 0xcb, 0xe2,
+    0xe8, 0x96, 0xb3, 0xe4, 0xc8, 0xe2, 0x7f, 0x45, 0xeb, 0x96, 0xf7, 0xaa, 0xda, 0x89, 0x51, 0xc3,
+    0xfb, 0x52, 0x1e, 0xfd, 0x97, 0x04, 0x0f, 0x5b, 0xe3, 0x15, 0xaa, 0x30, 0xaf, 0x03, 0x4d, 0x51,
+    0xbd, 0x40, 0xd6, 0xdd, 0x89, 0x8b, 0xc1, 0x22, 0xe9, 0xa7, 0x2b, 0x9e, 0x19, 0x05, 0xaa, 0x0c,
+    0xde, 0x4e, 0xd3, 0xdd, 0x91, 0xc2, 0xbc, 0x80, 0x7b, 0x8f, 0xc0, 0x19, 0xaf, 0x9d, 0x0f, 0xf0,
+    0xd6, 0xa8, 0x0a, 0xc1, 0xbd, 0x19, 0x9f, 0x2d, 0x39, 0x87, 0xc5, 0xf9, 0x1f, 0xf2, 0x0f, 0x44,
+    0xca, 0x3b, 0xbe, 0x4d, 0x67, 0xc6, 0xa0, 0xc6, 0xd8, 0x34, 0x57, 0xfe, 0xd9, 0x81, 0x07, 0x8c,
+    0xde, 0xc4, 0xd7, 0xf9, 0x1e, 0xff, 0xdb, 0xd5, 0x62, 0x93, 0xae, 0xdb, 0x0f, 0x7f, 0x01, 0x37,
+    0xdb, 0x6e, 0xf6, 0xae, 0x04, 0x00, 0x00,
+};
+const StaticFile style_css PROGMEM = {(sizeof(style_css_content)/sizeof(style_css_content[0])), style_css_content};
+
+static const uint8_t favicon_ico_content[] PROGMEM = {
+    0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xed, 0x99, 0x4b, 0x48, 0x15, 0x61,
+    0x14, 0xc7, 0xcf, 0xc5, 0x17, 0x2e, 0x4a, 0x57, 0xe5, 0x63, 0xe1, 0x85, 0x42, 0x23, 0x8c, 0x8c,
+    0x20, 0x4d, 0x45, 0xdb, 0x59, 0x14, 0x2e, 0x7a, 0xab, 0x68, 0x1b, 0x17, 0xae, 0x24, 0x41, 0xf1,
+    0x41, 0xa0, 0x41, 0xa1, 0x11, 0x28, 0x1a, 0x2e, 0x12, 0x72, 0xe7, 0x03, 0x09, 0x74, 0x15, 0x54,
+    0x1b, 0x97, 0xd9, 0x53, 0x23, 0x8a, 0x5a, 0x94, 0x25, 0x59, 0x91, 0x82, 0xa0, 0x81, 0x99, 0x39,
+    0xfd, 0x8f, 0x73, 0x46, 0xbf, 0xc6, 0xb9, 0x73, 0x67, 0xee, 0x9d, 0xab, 0x41, 0x1e, 0xf8, 0x71,
+    0xe7, 0x7e, 0xe7, 0xf1, 0x9f, 0xb9, 0xdf, 0x7c, 0x8f, 0x99, 0x4b, 0xe4, 0xa3, 0x28, 0x4a, 0x4c,
+    0x24, 0x7c, 0xfa, 0xa9, 0x2a, 0x9a, 0xe8, 0x08, 0x11, 0x25, 0x25, 0xe9, 0xdf, 0xdb, 0xe2, 0x89,
+    0x7a, 0xd1, 0xe6, 0xf7, 0xeb, 0xdf, 0x07, 0x11, 0x97, 0xbe, 0x93, 0x68, 0x1f, 0x62, 0x70, 0x88,
+    0x16, 0xbd, 0x7d, 0xd5, 0x10, 0x37, 0x43, 0x3a, 0x0e, 0x2c, 0x06, 0xdc, 0x16, 0x62, 0x9c, 0xa5,
+    0xfc, 0x65, 0xb1, 0x60, 0x58, 0x88, 0x75, 0x99, 0x9b, 0x06, 0x2a, 0xc1, 0x1b, 0xa1, 0x52, 0xda,
+    0x82, 0x19, 0xae, 0x90, 0xca, 0xc0, 0x04, 0x58, 0x02, 0x9a, 0xb0, 0x24, 0x6d, 0xa5, 0x12, 0x13,
+    0xc8, 0xd8, 0x3f, 0xab, 0xe4, 0x99, 0x99, 0x95, 0xfa, 0x56, 0xe6, 0x17, 0x8d, 0x40, 0xb9, 0x06,
+    0x13, 0x12, 0x6b, 0xb6, 0x4b, 0xa6, 0x73, 0x0e, 0xc4, 0x92, 0xc4, 0x9a, 0xed, 0xba, 0x83, 0x5c,
+    0x83, 0x6b, 0x16, 0xf9, 0x1d, 0x2e, 0xf2, 0x3b, 0x2c, 0xf2, 0xdb, 0x5d, 0xe4, 0xb7, 0x9b, 0x72,
+    0xf9, 0xfe, 0xea, 0x76, 0x91, 0xcf, 0xb1, 0x6a, 0x3f, 0x9e, 0x03, 0x5f, 0x5c, 0xe4, 0x73, 0xec,
+    0x59, 0x25, 0xbf, 0x00, 0xdc, 0x02, 0x5d, 0xe0, 0x2e, 0x58, 0x00, 0xf7, 0xe5, 0x7b, 0x97, 0x1c,
+    0x2f, 0x88, 0xaf, 0x4b, 0x62, 0x0b, 0x4c, 0xd7, 0xe0, 0x93, 0xcf, 0x7c, 0xf0, 0x99, 0xf4, 0x7b,
+    0xc9, 0xb0, 0x52, 0x69, 0xcb, 0x37, 0xc5, 0x5a, 0x59, 0x1e, 0x98, 0x06, 0x25, 0x4a, 0x5b, 0x89,
+    0xb4, 0xe5, 0xd9, 0xe4, 0x19, 0x96, 0x09, 0x9e, 0x83, 0x22, 0xa5, 0xad, 0x48, 0xda, 0x32, 0xcd,
+    0xc1, 0x8b, 0x18, 0x55, 0x93, 0x71, 0x44, 0xa3, 0x51, 0x44, 0x2d, 0x3e, 0x1d, 0xa7, 0xc6, 0x79,
+    0x3c, 0xcf, 0x60, 0x2a, 0xa2, 0x2c, 0x52, 0xe6, 0x99, 0x78, 0x57, 0xf3, 0x8c, 0xd9, 0x52, 0xc1,
+    0x43, 0xf0, 0x40, 0x8e, 0xbd, 0xb6, 0x1c, 0xf0, 0x5e, 0xc8, 0x89, 0x40, 0xfd, 0x6c, 0xf0, 0x41,
+    0xc8, 0xf6, 0xb0, 0x2e, 0x8f, 0x91, 0xbd, 0xa0, 0x0a, 0x7c, 0x15, 0xf8, 0x78, 0x0f, 0xd9, 0xcf,
+    0x69, 0xc1, 0x8c, 0x7b, 0x9c, 0xbb, 0xaf, 0x0d, 0x3c, 0x05, 0xf3, 0xb4, 0x3e, 0x4e, 0xe6, 0xa5,
+    0xad, 0x15, 0x1c, 0x24, 0xfb, 0xfb, 0xd6, 0xca, 0xf8, 0xbc, 0x78, 0x6c, 0x3a, 0x99, 0x17, 0xc7,
+    0x25, 0xd6, 0xe9, 0xb5, 0xf0, 0xb9, 0x9c, 0x27, 0x7d, 0x5c, 0x38, 0x1d, 0xf7, 0xd3, 0x92, 0xe3,
+    0xe4, 0x3a, 0xf8, 0x37, 0x79, 0xe1, 0xa2, 0xb6, 0x7a, 0x1d, 0x59, 0x41, 0x6a, 0x73, 0x5f, 0xb6,
+    0x85, 0x50, 0xdb, 0xe0, 0x06, 0xd9, 0xaf, 0xc9, 0xe9, 0xa4, 0xf7, 0x5b, 0xa8, 0xf5, 0x9f, 0x48,
+    0x8d, 0x40, 0x76, 0x0c, 0xfc, 0x08, 0xa3, 0x3e, 0xcf, 0xa5, 0x85, 0x36, 0xf5, 0xcf, 0x84, 0x51,
+    0xdb, 0xe0, 0xb4, 0x4d, 0xfd, 0x72, 0x0f, 0xea, 0x97, 0xdb, 0xd4, 0xaf, 0xf0, 0xa0, 0x7e, 0xc5,
+    0x16, 0xd6, 0x2f, 0xf3, 0xa0, 0x7e, 0xa0, 0x7d, 0x12, 0xcf, 0x57, 0x9d, 0x1e, 0xd4, 0xef, 0x94,
+    0x5a, 0xaa, 0x61, 0x15, 0xa3, 0x5e, 0xf0, 0xd3, 0x83, 0xfa, 0x5c, 0xe3, 0x8e, 0xd4, 0x34, 0x8c,
+    0xe7, 0x8d, 0x26, 0xf0, 0x58, 0x18, 0x03, 0xcf, 0x48, 0x5f, 0xea, 0x38, 0x67, 0x4a, 0xf1, 0x19,
+    0x4c, 0x89, 0x6f, 0x46, 0x62, 0xc7, 0x14, 0x5f, 0x13, 0x6d, 0x9c, 0x8b, 0x78, 0x5c, 0xef, 0x06,
+    0x29, 0xa4, 0x2f, 0xad, 0xbc, 0xc4, 0x8e, 0x80, 0x15, 0xd2, 0xe7, 0xe1, 0x64, 0xf1, 0xa5, 0xc8,
+    0x71, 0xab, 0xf8, 0x46, 0x68, 0x7d, 0x39, 0x4e, 0x91, 0x1a, 0x4e, 0xf6, 0xed, 0x09, 0xa0, 0x5f,
+    0x6a, 0x34, 0x58, 0xf8, 0x1b, 0xc4, 0xd7, 0x2f, 0xb1, 0x6e, 0x8d, 0x1f, 0x43, 0x06, 0xa4, 0x46,
+    0xa3, 0x85, 0xbf, 0x51, 0x7c, 0x03, 0x12, 0xeb, 0xd6, 0xf8, 0x9c, 0xfa, 0xa4, 0x46, 0xbd, 0x85,
+    0xbf, 0x5e, 0x7c, 0x7d, 0x14, 0xda, 0xf9, 0x73, 0xff, 0x5f, 0x01, 0x9f, 0xc0, 0x49, 0x0b, 0x3f,
+    0xb7, 0x4d, 0x49, 0x4c, 0x94, 0x85, 0x7f, 0xd5, 0xb4, 0xab, 0xda, 0x2a, 0x2b, 0xd4, 0x4c, 0x8b,
+    0x78, 0x94, 0x99, 0xc3, 0xa9, 0x4c, 0x52, 0xdc, 0x2a, 0xa3, 0x48, 0x63, 0x5a, 0x70, 0x2b, 0x04,
+    0xc2, 0x6c, 0xdc, 0xb6, 0x98, 0x94, 0xb6, 0x06, 0x77, 0xbc, 0x9f, 0xf4, 0x89, 0x79, 0x6d, 0x1f,
+    0x96, 0xb8, 0x71, 0x1f, 0x76, 0xea, 0x72, 0x51, 0x48, 0x48, 0xf9, 0x77, 0xe0, 0x2d, 0x48, 0x0b,
+    0xb5, 0x4e, 0x18, 0xfa, 0xd5, 0xb4, 0x3e, 0x36, 0xab, 0xb7, 0x40, 0xbf, 0x56, 0xd1, 0xaf, 0xfd,
+    0x0f, 0xf5, 0xeb, 0x14, 0xfd, 0xba, 0x4d, 0xd2, 0xe4, 0xdb, 0x9a, 0x9f, 0x35, 0x5f, 0x82, 0xdf,
+    0x8a, 0x3e, 0x1f, 0xf3, 0x9e, 0x92, 0x9f, 0x23, 0x33, 0x22, 0xa0, 0xcb, 0x73, 0xe7, 0x10, 0xe9,
+    0xf3, 0x46, 0xb0, 0x75, 0x82, 0x63, 0x06, 0xc1, 0x2e, 0x8f, 0xb4, 0xf3, 0x68, 0x7d, 0x3d, 0x71,
+    0xc3, 0x77, 0x90, 0x1b, 0xa6, 0x76, 0x21, 0xe9, 0x7b, 0xb3, 0x50, 0xd7, 0x4c, 0xce, 0x2d, 0x08,
+    0xe3, 0x37, 0x77, 0xb3, 0x97, 0x0f, 0xc4, 0x37, 0x90, 0x1c, 0x82, 0xfe, 0x90, 0x07, 0xda, 0x06,
+    0x83, 0x2e, 0xb5, 0xf7, 0x9b, 0xee, 0xef, 0x70, 0xe1, 0x5a, 0x07, 0x5c, 0xe8, 0xbb, 0x79, 0x77,
+    0xe3, 0x94, 0x9b, 0x2e, 0xf4, 0x5f, 0x47, 0x40, 0xff, 0x95, 0x43, 0x6d, 0xde, 0x23, 0x39, 0x19,
+    0xe7, 0xa1, 0xf4, 0x41, 0xb4, 0x03, 0xfd, 0xd4, 0x08, 0x68, 0x1b, 0xa4, 0x38, 0xd0, 0xcf, 0x88,
+    0xa0, 0x7e, 0xd0, 0xb9, 0x79, 0x5b, 0x7f, 0x5b, 0x7f, 0xab, 0xf4, 0x61, 0x17, 0xc1, 0xbd, 0x08,
+    0xea, 0x73, 0xed, 0x0b, 0x01, 0xb4, 0xe3, 0xc1, 0xaf, 0x08, 0x6a, 0x1b, 0xf0, 0xff, 0x05, 0xf1,
+    0x16, 0xfa, 0xfc, 0x50, 0x31, 0xbe, 0x09, 0xfa, 0xfc, 0x0e, 0xcd, 0x67, 0xf3, 0x1b, 0x1c, 0x02,
+    0x87, 0x4d, 0xd4, 0x28, 0xf9, 0xc3, 0x16, 0x7e, 0x83, 0x61, 0x25, 0xae, 0xc6, 0xc2, 0x7f, 0xc8,
+    0xea, 0xda, 0x1d, 0xdc, 0x93, 0xc5, 0x4a, 0xdd, 0x1e, 0x9b, 0xb8, 0x1e, 0x25, 0xae, 0xd8, 0xad,
+    0xce, 0xb6, 0xfe, 0x3f, 0xab, 0x7f, 0x42, 0xa9, 0xdb, 0x6d, 0x13, 0xa7, 0xfe, 0x67, 0x75, 0xdc,
+    0x43, 0xfd, 0x1d, 0xa4, 0xbf, 0x27, 0xe2, 0x77, 0xfc, 0x47, 0x6d, 0xe2, 0x72, 0x49, 0xdf, 0xef,
+    0x3e, 0xe2, 0x1c, 0x27, 0xb5, 0xb5, 0xe5, 0x42, 0x6d, 0x03, 0x93, 0x71, 0x9a, 0xd6, 0xe2, 0xd3,
+    0x70, 0x11, 0x1a, 0x36, 0x42, 0xcd, 0xcb, 0x78, 0x0e, 0x60, 0x16, 0xf1, 0x9c, 0x6f, 0x30, 0x47,
+    0x94, 0x60, 0xc7, 0x24, 0x51, 0xdc, 0x28, 0x51, 0x14, 0xc3, 0xc7, 0x5a, 0xeb, 0x47, 0xcd, 0x8a,
+    0x3f, 0x05, 0x2f, 0x43, 0xb9, 0xce, 0x1e, 0x00, 0x00,
+};
+const StaticFile favicon_ico PROGMEM = {(sizeof(favicon_ico_content)/sizeof(favicon_ico_content[0])), favicon_ico_content};
+
+}
diff --git a/platformio/temphum/src/static.h b/platformio/temphum/src/static.h
new file mode 100644
index 0000000..90560bf
--- /dev/null
+++ b/platformio/temphum/src/static.h
@@ -0,0 +1,22 @@
+/**
+ * This file is autogenerated with make_static.sh script
+ */
+
+#pragma once
+
+#include <stdlib.h>
+
+namespace homekit::files {
+
+typedef struct {
+    size_t size;
+    const uint8_t* content;
+} StaticFile;
+
+extern const StaticFile index_html;
+extern const StaticFile app_js;
+extern const StaticFile md5_js;
+extern const StaticFile style_css;
+extern const StaticFile favicon_ico;
+
+}
diff --git a/platformio/temphum/src/stopwatch.h b/platformio/temphum/src/stopwatch.h
new file mode 100644
index 0000000..bac2fcc
--- /dev/null
+++ b/platformio/temphum/src/stopwatch.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <Arduino.h>
+
+namespace homekit {
+
+class StopWatch {
+private:
+    unsigned long time;
+
+public:
+    StopWatch() : time(0) {};
+
+    inline void save() {
+        time = millis();
+    }
+
+    inline bool elapsed(unsigned long ms) {
+        unsigned long now = millis();
+        if (now < time) {
+            // rollover?
+            time = now;
+        } else if (now - time >= ms) {
+            return true;
+        }
+        return false;
+    }
+};
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/temphum.cpp b/platformio/temphum/src/temphum.cpp
new file mode 100644
index 0000000..0b6fbbe
--- /dev/null
+++ b/platformio/temphum/src/temphum.cpp
@@ -0,0 +1,53 @@
+#include "temphum.h"
+#include "logging.h"
+#include <Arduino.h>
+
+namespace homekit::temphum {
+
+static const int addr = 0x40;
+
+void setup() {
+    pinMode(D2, OUTPUT);
+    pinMode(D3, OUTPUT);
+
+    Wire.begin(D2, D3);
+
+    Wire.beginTransmission(addr);
+    Wire.write(0xfe);
+    Wire.endTransmission();
+
+    delay(500);
+}
+
+struct data read() {
+    // Request temperature measurement from the Si7021 sensor
+    Wire.beginTransmission(addr);
+    Wire.write(0xF3); // command to measure temperature
+    Wire.endTransmission();
+
+    delay(500); // wait for the measurement to be ready
+
+    // Read the temperature measurement from the Si7021 sensor
+    Wire.requestFrom(addr, 2);
+    uint16_t temp_raw = Wire.read() << 8 | Wire.read();
+    double temperature = ((175.72 * temp_raw) / 65536.0) - 46.85;
+
+    // Request humidity measurement from the Si7021 sensor
+    Wire.beginTransmission(addr);
+    Wire.write(0xF5); // command to measure humidity
+    Wire.endTransmission();
+
+    delay(500); // wait for the measurement to be ready
+
+    // Read the humidity measurement from the Si7021 sensor
+    Wire.requestFrom(addr, 2);
+    uint16_t hum_raw = Wire.read() << 8 | Wire.read();
+    double humidity = ((125.0 * hum_raw) / 65536.0) - 6.0;
+
+    return {
+        .temp = temperature,
+        .rh = humidity
+    };
+}
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/temphum.h b/platformio/temphum/src/temphum.h
new file mode 100644
index 0000000..824b9bf
--- /dev/null
+++ b/platformio/temphum/src/temphum.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <Wire.h>
+
+namespace homekit::temphum {
+
+struct data {
+    double temp; // celsius
+    double rh; // relative humidity percentage
+};
+
+void setup();
+struct data read();
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/util.h b/platformio/temphum/src/util.h
new file mode 100644
index 0000000..e0780d8
--- /dev/null
+++ b/platformio/temphum/src/util.h
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace homekit {
+
+inline size_t otaGetMaxUpdateSize() {
+    return (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+}
+
+inline void restart() {
+    ESP.restart();
+}
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/wifi.cpp b/platformio/temphum/src/wifi.cpp
new file mode 100644
index 0000000..3d7e092
--- /dev/null
+++ b/platformio/temphum/src/wifi.cpp
@@ -0,0 +1,48 @@
+#include <pgmspace.h>
+#include "config.def.h"
+#include "wifi.h"
+#include "config.h"
+#include "logging.h"
+
+namespace homekit::wifi {
+
+using namespace homekit;
+using homekit::config::ConfigData;
+
+const char NODE_ID[] = DEFAULT_NODE_ID;
+const char AP_SSID[] = DEFAULT_WIFI_AP_SSID;
+const char STA_SSID[] = DEFAULT_WIFI_STA_SSID;
+const char STA_PSK[] = DEFAULT_WIFI_STA_PSK;
+
+void getConfig(ConfigData &cfg, const char** ssid, const char** psk, const char** hostname) {
+    if (cfg.flags.wifi_configured) {
+        *ssid = cfg.wifi_ssid;
+        *psk = cfg.wifi_psk;
+        *hostname = cfg.node_id;
+    } else {
+        *ssid = STA_SSID;
+        *psk = STA_PSK;
+        *hostname = NODE_ID;
+    }
+}
+
+std::shared_ptr<std::list<ScanResult>> scan() {
+    if (WiFi.getMode() != WIFI_STA) {
+        PRINTLN("wifi::scan: switching mode to STA");
+        WiFi.mode(WIFI_STA);
+    }
+
+    std::shared_ptr<std::list<ScanResult>> results(new std::list<ScanResult>);
+    int count = WiFi.scanNetworks();
+    for (int i = 0; i < count; i++) {
+        results->push_back(ScanResult {
+            .rssi = WiFi.RSSI(i),
+            .ssid = WiFi.SSID(i)
+        });
+    }
+
+    WiFi.scanDelete();
+    return results;
+}
+
+}
\ No newline at end of file
diff --git a/platformio/temphum/src/wifi.h b/platformio/temphum/src/wifi.h
new file mode 100644
index 0000000..1b95b2f
--- /dev/null
+++ b/platformio/temphum/src/wifi.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <ESP8266WiFi.h>
+#include <list>
+#include <memory>
+#include "config.h"
+
+namespace homekit::wifi {
+
+using homekit::config::ConfigData;
+
+struct ScanResult {
+    int rssi;
+    String ssid;
+};
+
+void getConfig(ConfigData& cfg, const char** ssid, const char** psk, const char** hostname);
+
+std::shared_ptr<std::list<ScanResult>> scan();
+
+inline uint32_t getIPAsInteger() {
+    if (!WiFi.isConnected())
+        return 0;
+    return WiFi.localIP().v4();
+}
+
+inline int8_t getRSSI() {
+    return WiFi.RSSI();
+}
+
+extern const char AP_SSID[];
+extern const char STA_SSID[];
+extern const char STA_PSK[];
+extern const char NODE_ID[];
+
+}
\ No newline at end of file