BLE LED

test.py

#!/usr/bin/env python

import time
import gatt

manager = gatt.DeviceManager(adapter_name='hci0')

def array2raw(arr):
    raw = b"".join(map(lambda x: x.to_bytes(1, byteorder='big'), arr))
    return raw

def rgb2value(r, g, b):
    val = [126, 255, 5, 3, r, g, b, 255, 239]
    return array2raw(val)

class AnyDevice(gatt.Device):
    def services_resolved(self):
        super().services_resolved()

        service = next(s for s in self.services if s.uuid == '0000ffe0-0000-1000-8000-00805f9b34fb')

        characteristic = next(c for c in service.characteristics if c.uuid == '0000ffe1-0000-1000-8000-00805f9b34fb')

#        raw = rgb2value(255, 128, 0)
#        raw = array2raw([126, 255, 4, 0, 255, 255, 255, 255, 239])
        raw = array2raw([126, 255, 4, 1, 255, 255, 255, 255, 239])
        characteristic.write_value(raw)


device = AnyDevice(mac_address='78:9c:e7:0d:3b:f5', manager=manager)
device.connect()

manager.run()