we used arduino 1.0.6 and 1.6.9 i believe ,. arduino mega 2560 also this dmx shield : https://www.amazon.com/Quality-Solution-Connect-Arduino-Networks/dp/B01CURKPWS/ref=sr_1_2?ie=UTF8&qid=1493261170&sr=8-2&keywords=dmx+arduino
we used arduino 1.0.6 and 1.6.9 i believe ,. arduino mega 2560
board hangs on power cycle or reset with dmx-slave sketch.