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Description These are DMX connected, 24V powered RGB led spotlights, mounted on a pan&tilt head.
Has website
Persons working on Cha0z97, Petraea
Self-organized sessions create self-organized session
Tags lights, dmx, infrastructure, Idiopolis
Located at village Village:Idiopolis
Other projects... ... further results


We have always had rgb lights at NURDspace, and they are a great way to fine-tune atmosphere. As such, we have become accustomed to having them around.

As we were planning out the Projects:Geodome, it dawned upon us to incorporate this aspect of delight into the finished project.

Thus, this project was born.

Early on it was planned to become a 2.4ghz wireless system, but we moved to DMX along the way, as we had to run powerwires to all of them anyway.


  • 3W RGB-led sporting a 10deg narrow angle lens, mounted on aluminium heat-sink for sufficient heat dissipation
  • 180 degree pan function for the LED
  • 180 degree tilt function for the LED
  • The brain of the node is the Pro Mini, featuring the AtMega328P uC which sits on top of female headers, so you can swap it out.
  • Supplied by 24 to 5-6V, and regulated down by a Switching PSU to 5V.
  • Power and signal are provided through Molex connectors
  • 3D printed bodies for mounting the pan/tilt system and the PCB
  • PCB is built up part SMD / part through hole
  • Two modes of operation: DMX or standalone, selectable by DIP
  • Big 3300uF cap for those dire times, electrically speaking.


  • Each node has 6 channels
  • Each node is addressable to 512 addresses by means of a DIP switch array
    • Control channel for RED ranging from off to OMG my eyes!
    • Control channel for GREEN
    • Control channel for BLUE
    • Control channel for PAN
    • Control channel for TILT
    • Control channel for pre-programmed functions. (As of yet; display_address(), beserk()) more to follow
  • The DMX chip used is the LTC485S, currently operating in receiver mode. However the chip is capable of transmitter mode as well. The hardware supports toggling receiver/transmitter mode, but this feature has not been implemented in software. Hackaway, and turn the node into a DMX transmitter!


  • One DIP will toggle standalone/DMX mode. When in standalone mode, the node will perform various routines as configured by the remaining 9 DIP switches



In Village:Idiopolis there is a dome, about 4 meters high, you should be able to spot it. Look inside. :)

Also, they are for sale in the Idiocubator. (we made about 50 to sell, price TBD)