public async Task<BluetoothRobotConstants.ACTIVIATION_STATUS> ReadProductActivationStatus()
{
if (activationStatus == BluetoothRobotConstants.ACTIVIATION_STATUS.NOT_READ)
{
byte[] data = await base.ReadChacateristicValueAsync(BluetoothRobotConstants.DEVICE_SETTING_PRODUCT_ACTIVIATION_CHARACTERISTIC_UUID);
activationStatus = BaseService.ConvertEnumFromBytes<BluetoothRobotConstants.ACTIVIATION_STATUS>(data);
}
return activationStatus;
}