ESP8266 Community Forum

Posted: **Tue Jun 30, 2015 5:11 pm**

Hi everyone
doas anybody has already tried to use an ESP8266 as a DMX sender / receiver
I'm trying to use mine as DMX sender, but no libs are working and I tried this code whiwh works on a teensy :

Code: Select all

  Serial1.begin(83333, SERIAL_8N1);
  Serial1.write(0);
  Serial1.flush();
  Serial1.begin(250000, SERIAL_8N2);
  Serial1.write(buffer, sizeof(buffer));
  Serial1.flush();

but no DMX out from my GPIO2 :/

have you some ideas ?

bye

Posted: **Tue Jun 30, 2015 6:39 pm**

I will be interested to see this work also.... ARTNET and the like would be cool too!

Richard.

Posted: **Wed Jul 01, 2015 2:56 am**

There are two codes for ArtNet DMX codes I tested and work great

http://www.ulrichradig.de/home/index.ph ... t-net-node
https://github.com/twischer/WLAN-RGB-Para

Posted: **Wed Jul 01, 2015 10:31 am**

DMX protocol is defined as a serial break, followed by a 0x00 byte start code, than followed by 512 dimmer's value slots.
This stream need to be repeated forever.
This means your code need to replicated this protocol in a loop.
In ESP8266, I don't know if there is an API to send the serial break, but if it is not provided, maybe it can be simulated with GPIO states.

ESP8266 Community Forum

ESP8266 as DMX sender / receiver

ESP8266 as DMX sender / receiver

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Re: ESP8266 as DMX sender / receiver

Re: ESP8266 as DMX sender / receiver