Jumper Settings

Set the jumpers on the DMX shield as shown:

• EN off (in the on position the shield enable pin is grounded, turning off the shield)
• Mode ON (allows the mode pin 2 to set the board to sender or receiver mode via software)
• TX-IO (sets the TX pin to pin 4 instead of UART pin 1 which can interfere with board uploads)
• RX-10 (sets the RX pin to pin 3 instead of UART pin 0 which can interfere with board uploads)

Mount Shield

Carefully mount the shield on top of the Arduino Uno or Metro 328.

Plug Cable

Plug a 3-pin XLR cable into the OUT connector on the board, then plug this cable into your first light fixture (shown in the image below as the blue marked cable).

Then, use a second XLR cable to plug the OUT of fixture 1 to the IN of fixture 2. This is the red marked cable in the image below.