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Simple KiCAD PCB design for Onion Omega2(+) based WS28xx LED + DMX controller

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plan44/p44-mini-lx

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e1b5867 · Dec 19, 2024

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P44-mini-lx PCB for WS28xx SmartLEDs + DMX

This is a simple KiCAD PCB design to use a Onion Omega2(+) module as a LED + DMX controller with the P44-xx-open opensource firmware.

p44-mini-lx WS28xx/DMX controller

Features

  • configurable for 5V powered WS2813,WS2816,SK6812 and similar as well as 12V powered WS2815.
  • optional power PWM or on/off output for separate non-smart LED or powering off LED chains when idle.
  • RS485 interface (not opto isolated) which can be used as DMX512 output (or to drive Swiss Railways splitflap modules, or for modbus RTU)
  • Ethernet RJ45 Jack on board
  • room for small 5*12 WS2816 LED array (as a test/demo, hard to solder, harder to fix soldering errors)
  • two buttons
  • PSU (5V or 12..24V) to 3.3V regulator (either cheap LDO for 5V PSU, or Recom switching regulator in TO220 compatible housing for PSU voltage >5V)

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Simple KiCAD PCB design for Onion Omega2(+) based WS28xx LED + DMX controller

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