ESP8266: Artnet receiver

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The other I was playing with a matrix of led. The matrix is made of a stripe of WS2801.

So, here is what I have done.

  1. I flash a new lua based firmware in the ESP8266 using Marcel’s NodeMCU custom build cloud service.
    Add WS2801 and / or WS2812 modules
  2. Wait and download the compiled firmware
  3. Flash it using the tool ESPtool
  4. I use ESPlorer to program the ESP
    1. Create a new ini.lua
    2. Copy the following lines of code.
      This is for a matrix 10×10 “snakelines”

      tmr.delay(5000000)   -- wait 1,000,000 us = 1 second
      ws2801.init(0, 2)
      s:on("receive",function(s,c) ws2801.write(string.sub (c, 19, 318)) end)
  5. Use Jinx or Glediator (I prefer Jinx) to drive the matrix and send the Artnet commands to the ESP8266

It works very well.
The code is simple and works well. I haven’t tried on large matrix but I think for larger matrix a fast wifi connection would be needed.