RDM Device Emulator
      About a year ago I bought a cheap DMX RGB wall washer , but it had a set DMX address so i decided to build an RDM Emulator.
Gather the Parts
      You will need
- 2 x MAX485
 - 1 x 100 OHM resistor
 - 1 x 4.7 k resistor
 - 1 x Arduino rev3
 - Jumper wires
 - 1 x Breadboard
 
Build the Circuit
      Arduino Code
You will need to install the DmxSerial2.h and the DmxSimple.h arduino library's.
Then you can upload the arduino code to your arduino uno rev3.