Python3: GATT のデータを受信

こちらで送信する String を Python で受信しました。
ESP32: GATT で String を送信

送信元のアドレスと Characteristic UUID が必要です。

プログラム

get_data.py

#! /usr/bin/python
#
#	get_data.py
#
#					Oct/02/2024
# ------------------------------------------------------------------
import asyncio
from bleak import BleakClient

DEVICE_ADDRESS = "08:3A:F2:66:04:4A"
CHARACTERISTIC_UUID = "00002a19-0000-1000-8000-00805f9b34fb"

async def read_characteristic(address, char_uuid):
	async with BleakClient(address) as client:
		data = await client.read_gatt_char(char_uuid)
		return data
#
# ------------------------------------------------------------------
async def main():
	for it in range(3):
		data = await read_characteristic(DEVICE_ADDRESS, CHARACTERISTIC_UUID)
		print("Data:", data)
		print("Data:", data.decode())
#
# ------------------------------------------------------------------
asyncio.run(main())
# ------------------------------------------------------------------

実行結果

$ ./get_data.py 
Data: bytearray(b'Battery: 44475')
Data: Battery: 44475
Data: bytearray(b'Battery: 44900')
Data: Battery: 44900
Data: bytearray(b'Battery: 45375')
Data: Battery: 45375