my.readBLECharacteristicValue

// Register listener first
my.onBLECharacteristicValueChange((res) => {
  console.log('Value changed:', res.characteristicId, res.value);
});

// Then trigger a read
my.readBLECharacteristicValue({
  deviceId: 'XX:XX:XX:XX:XX:XX',
  serviceId: '0000FFF0-0000-1000-8000-00805F9B34FB',
  characteristicId: '0000FFF1-0000-1000-8000-00805F9B34FB',
  success: (res) => {
    console.log('Read request sent, characteristic:', res.characteristic);
  },
  fail: (err) => {
    console.error('Read failed:', err);
  }
});