4 files changed, 64 insertions, 0 deletions
diff --git a/platformio/common/include/homekit/logging.h b/platformio/common/include/homekit/logging.h
new file mode 100644
index 0000000..559ca33
--- /dev/null
+++ b/platformio/common/include/homekit/logging.h
@@ -0,0 +1,20 @@
+#ifndef COMMON_HOMEKIT_LOGGING_H
+#define COMMON_HOMEKIT_LOGGING_H
+
+#include <stdlib.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
+
+#endif //COMMON_HOMEKIT_LOGGING_H
+\ No newline at end of file
diff --git a/platformio/common/include/homekit/macros.h b/platformio/common/include/homekit/macros.h
new file mode 100644
index 0000000..7d3ad83
--- /dev/null
+++ b/platformio/common/include/homekit/macros.h
@@ -0,0 +1 @@
+#define ARRAY_SIZE(X) sizeof((X))/sizeof((X)[0])
+\ No newline at end of file
diff --git a/platformio/common/include/homekit/stopwatch.h b/platformio/common/include/homekit/stopwatch.h
new file mode 100644
index 0000000..bac2fcc
--- /dev/null
+++ b/platformio/common/include/homekit/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/common/include/homekit/util.h b/platformio/common/include/homekit/util.h
new file mode 100644
index 0000000..e0780d8
--- /dev/null
+++ b/platformio/common/include/homekit/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