For Rev1.0, please disconnect G15 from the shield during program loading (Arduin UNO or Mega) as the G15 will receive Arduino program too.

*For Rev2.0, please use software serial pin (D2, D3, D8, D9, D10, D11) when load program into Arduino.

Rev 1.0	Rev 2.0
2 x G15 ports, 2 x AX12 Ports	4 x G15 Ports (AX12 Ports has been replaced by G15 Ports)
Control pin:(selectable using mini jumper) 1) D3, D9 - G15 Control pin 2) D2, D8- AX12 Control pin	Control pin:(Selectable using mini jumper) D2, D8 - G15 Control pin
Hardware Serial : D0 (Rx), D1 (Tx)	Hardware Serial : D0 (Rx), D1 (Tx) Software Serial: Tx: D3, D9, D11 Rx: D2, D8, D10

Rev 1.0

Rev 2.0

2 x G15 ports, 2 x AX12 Ports

4 x G15 Ports

(AX12 Ports has been replaced by G15 Ports)

Control pin:(selectable using mini jumper)

1) D3, D9 - G15 Control pin

2) D2, D8- AX12 Control pin

Control pin:(Selectable using mini jumper)

D2, D8 - G15 Control pin

Hardware Serial :

D0 (Rx), D1 (Tx)

Hardware Serial :

D0 (Rx), D1 (Tx)

Software Serial:

Tx: D3, D9, D11

Rx: D2, D8, D10

Cytron G15 Shield comes with:

Arduino reset button
2 4 x G15 Cube Servo ports.
~~2 x AX-12 Dynamixel AX12 servo ports~~ (Rev2.0 does not come with Dynamixel port).
External power port for servo with polarity protection
Stackable I/O header pin
Selectable digital pins for the control pin with mini jumpers
TX and RX indicator LEDs to show communication activities, only on Rev2.0.
Selectable Serial pins, Either hardware serial or software serial via mini jumpers, only on Rev2.0
2 LEDs as logic and servo power indicators