All LEDs are in fact 2 LED (one red and one green) and seems to be connected to separated pins from the controller, or at least can be addressed by the controller following this addresses design: ``` LED 1 (r) = 1 LED 1 (g) = 2 ``` ``` LED 2 (r) = 3 LED 2 (g) = 4 ``` ``` LED 3 (r) = 5 LED 3 (g) = 6 ``` There is no zero LED the commands to address the LED status is 0x1B 0x4C _STATUS_ _STATUS_ byte is divided in two parts: 4 high bits are used to define the LED id, 1 low bit is used to define the status (on/off) So Led's can controlled with the following (pseudo-c) code: ``` #define LED_STATUS_ON 0x01 #define LED_STATUS_OFF 0x00 #define LED_1_RED 0x10 #define LED_1_GREEN 0x20 #define LED_2_RED 0x30 #define LED_2_GREEN 0x40 #define LED_3_RED 0x50 #define LED_3_GREEN 0x60 void SetLed(unsigned char ledid,unsigned char status) { unsigned char cmd[3]; cmd[0] = "\x1b"; cmd[1] = "\x4c"; cmd[2] = (unsigned char) (ledid + status); SerialPtr_writebuffer(cmd,3); } SetLed(LED_1_GREEN, LED_STATUS_ON); ```