Create main.py

Author: DavesCodeMusings

main.py

@@ -0,0 +1,51 @@
+# Example of how to use BTHome beacons with aioble in MicroPython
+# Some parts are ESP32 specific, but most code is portable.
+
+from machine import deepsleep, unique_id
+from binascii import hexlify
+import asyncio
+import aioble
+import bthome
+
+BLE_ADV_INTERVAL_uS = 250000
+AWAKE_TIME_SECS = 60   # How long to spend advertising and servicing clients.
+SLEEP_TIME_SECS = 120  # How long to spend in deep sleep.
+
+base_mac = unique_id()  # WiFi MAC
+bluetooth_mac = bytearray(base_mac)
+bluetooth_mac[5] += 2   # ESP32 Bluetooth MAC is always WiFi MAC + 2
+
+bthome.device_name = "DIY-sensor"
+print(bthome.device_name)
+print(hexlify(bluetooth_mac, ':').decode().upper())
+
+async def read_sensor():
+    bthome.temperature = 25
+    bthome.humidity = 50.55
+    print(f"BTHome flags: {bthome._ADVERT_FLAGS.hex().upper()}")
+    print(f"Device name: {bthome._pack_device_name().hex().upper()}")
+    print(f"Temperature data: {bthome._pack_temperature(bthome.TEMPERATURE_SINT16).hex().upper()}")
+    print(f"Humidity data: {bthome._pack_humidity(bthome.HUMIDITY_UINT16).hex().upper()}")
+    print(f"BTHome advertisement: {bthome.pack_advertisement(bthome.TEMPERATURE_SINT16, bthome.HUMIDITY_UINT16).hex().upper()}")
+    await asyncio.sleep(AWAKE_TIME_SECS)
+    print("Going to sleep.")
+    deepsleep(SLEEP_TIME_SECS * 1000)  # Helps mitigate sensor self-heating.
+
+async def communicate_readings():
+    print("Advertising availability of data.")
+    while True:
+        async with await aioble.advertise(
+            BLE_ADV_INTERVAL_uS,
+            adv_data = bthome.pack_advertisement(bthome.TEMPERATURE_SINT16, bthome.HUMIDITY_UINT16)
+        ) as connection:
+            print("Client connect:", connection.device)
+            await connection.disconnected(timeout_ms=None)
+            print("Client disconnect.")
+
+
+async def main():
+    task1 = asyncio.create_task(read_sensor())
+    task2 = asyncio.create_task(communicate_readings())
+    await asyncio.gather(task1, task2)
+
+asyncio.run(main())