ble_blinky.py

# Эта работа лицензирована по лицензии MIT.
# Copyright (c) 2013-2023 OpenMV LLC. All rights reserved.
# https://github.com/openmv/openmv/blob/master/LICENSE
#
# Пример Bluetooth Blinky
#
# Используйте приложение nRFConnect из App Store, подключитесь к плате
# "mpy-blinky" и записывайте bool (True/False) для управления светодиодом.

import struct
import asyncio
import aioble
import bluetooth
from machine import LED
from micropython import const

# UUID
_LED_CONTROL_UUID = bluetooth.UUID(0x1815)
_LED_CONTROL_CHAR_UUID = bluetooth.UUID(0x2A56)
_ADV_APPEARANCE_GENERIC_TAG = const(512)
_ADV_INTERVAL_MS = 250_000

# Настройка светодиода
led = LED("LED_BLUE")

# GATT-сервер
led_service = aioble.Service(_LED_CONTROL_UUID)
led_characteristic = aioble.Characteristic(led_service, _LED_CONTROL_CHAR_UUID, write=True, capture=True)
aioble.register_services(led_service)


async def led_control_task():
    while True:
        conn, data = await led_characteristic.written()
        led.value(struct.unpack("<B", data)[0])


async def peripheral_task():
    while True:
        async with await aioble.advertise(
            _ADV_INTERVAL_MS,
            name="mpy-blinky",
            services=[_LED_CONTROL_UUID],
            appearance=_ADV_APPEARANCE_GENERIC_TAG,
        ) as connection:
            print("Connection from", connection.device)
            await connection.disconnected()


async def main():
    await asyncio.gather(led_control_task(), peripheral_task())


asyncio.run(main())