Various DMX mods - mtongz ArtNet node port

Usermods
1

I’ve been upgrading mtongz’s artnet v2 project for some boards I made, then I found this excellent project (d’oh). So I am now planning to add a few mods for what I need, they are:

  1. Dual DMX output using an interrupt-enabled driver for UART0 & 1
  2. DMX input on UART0 also supported by the driver (though not my first priority)
  3. Onboard device & 2x port status WS2812 LEDs
  4. Network (ArtNet/sACN) to DMX passthrough (not sure if this is already supported?)
  5. Network to LED direct mapping (for external pixel effects - not sure of this is already supported?)

They will only support ESP8266 because that’s the only hardware I have.

Just wondering if anybody has any tips before I pile in? I know that I should aim to add them as usermod v2 features, but not sure if there is such low-level access available for all the above?

Other things that could be supported: DMX RDM

2

Okay, so it looks like some of what I’m looking for is already there. So to start I propose two modifications, hopefully as usermods:

DMX Config

  • Support for two UARTs
  • Integrate DMX driver as LED mode: DMX
  • Add new LED HTML template type with channel map dropdown
  • GPIO LED option can only be UART pins
  • Modify existing DMX page for fixture size and several channel maps
  • Add Amber and UV as channel map options
  • Add passthrough universe number for both UARTs
  • Add UART direction GPIO numbers
  • Add per-UART input tickbox
  • UART RX GPIO number - built into driver

Status
Make status page to pick LED segment number as status output and hide from main UI

Any comments @Aircoookie ?

5

These modifications are now complete. PM for details

6

@blazoncek Could you explain why my links have been hidden please? There’s nothing in the community guidelines about posting links to github or other websites for that matter.

7

I do not manage the forum so IDK.

8

Hey

I just started to thinking about a mod like this yesterday, great that you head the same idea.

I would love to try it out, my aim would be to get it running on a WT32-ETH1.

Do you have experience with this controller already?

Would you be so nice to share your modded code?

Greetings
Tinka

9

I’m afraid I’ve only implemented on an ESP8266 and don’t have ESP32 hardware or the time to test it and get it working.

A binary is available on racitup dot com

You will struggle to make DMX reliable (gap-free) without a full ISR DMX driver which is implemented for the ESP8266 here:

One day I might have time to implement the ESP32 version but unfortunately has a completely different ISR API. Also I believe it still has the UART bug with the idle timer which took a lot of figuring out. And the 8266 still has 2 years support.

I haven’t posted the mods as a PR because they seem reluctant to accept them and without ESP32 support would be rejected anyway.

1 Like
10

For me, it would be interesting to see the changes you made for the ESP8266.
I’m a Hardware and Firmware developer, so I would love to branch off from your working branch to see how far I can get it.

Could you share a link to the repo or branch which is working for you?

Many Thanks

11

If you port the UART driver I might decide to share the rest. The driver is the difficult bit. Hope you have an oscilloscope or protocol analyser.

12

Hey

I found this really promising implementation, the guy wrote a own part Implikationen and the way how he deals with the break problem sound promising too me.
Works with esp32 and as a feature RDM + a sniffing tool.

https://www.reddit.com/r/esp32/comments/l8sun9/comment/glfmlm5/

So I think it’s worth to try to get this running.

Would be still interesting to see the changes you made.
Did you manage to implement your work in one user_mid file or did you have to change more in the project?

I will try out your binary later with an esp8266, looking forward to this. Did you actually implied a interface for the node?

Many greetings