android -> accessory
| -- | msg[0] | msg[1] | msg[2] |
| LED1 RED | 0x02 | 0x00 | 0 - 255 |
| LED1 GREEN | 0x02 | 0x01 | 0 - 255 |
| LED1 BLUE | 0x02 | 0x02 | 0 - 255 |
| LED2 RED | 0x02 | 0x03 | 0 - 255 |
| LED2 GREEN | 0x02 | 0x04 | 0 - 255 |
| LED2 BLUE | 0x02 | 0x05 | 0 - 255 |
| LED3 RED | 0x02 | 0x06 | 0 - 255 |
| LED3 GREEN | 0x02 | 0x07 | 0 - 255 |
| SERVO1 | 0x02 | 0x10 | 0 - 255 |
| SERVO2 | 0x02 | 0x11 | 0 - 255 |
| SERVO3 | 0x02 | 0x12 | 0 - 255 |
| RELAY1 | 0x03 | 0x00 | 0(Low), 1(High) |
| RELAY2 | 0x03 | 0x01 | 0(Low), 1(High) |
accessory -> android
| -- | msg[0] | msg[1] | msg[2] |
| Button1 | 0x01 | 0x00 | 0, 1 |
| Button2 | 0x01 | 0x01 | 0, 1 |
| Button3 | 0x01 | 0x02 | 0, 1 |
| Button Joystick | 0x01 | 0x04 | 0, 1 |
| temperature | 0x04 | value of MSB | value of LSB |
| light | 0x05 | value of MSB | value of LSB |
| joystick | 0x06 | position of X(-128 - 127) | position of Y(-128 - 127) |
| touch robot | 0x01 | 0x03 | 0, 1 |
