DMX on Arduino DUE (DMXSimple/DMXSerial)

system · February 1, 2013, 2:16pm

Hi, does anyone know if the DUE works with any DMX library and Shield?

They seem to work with AVR libs that are not available (in 1.5.1)..

Thanks!
Klaas

system · February 15, 2013, 3:09pm

I have the same problem / question. Any help would be great!

system · March 10, 2013, 7:38pm

I have the same question. Any news?

system · July 30, 2013, 8:21am

Hi,

I have exactly the same question.

I talk especially to the Arduino team, it's good to get out an Arduino DUE powerful, but if you don't create compatible libraries...

I bought an Arduino DUE and I can make anything.

I understand that you don't have time to recreate all existing libraries, but in this case you could make a tutorial that explains how to create a library.

Apart from that, you do a great job and I love Arduino, thank you !

mcnobby · January 19, 2014, 8:49pm

I'd love to know about this too (both TX and RX) - I am thinking of buying a Due :@)

system · May 13, 2014, 12:33pm

after one year, no answer from community?

(just new here, and same question comes to me!)

system · May 18, 2014, 5:07pm

Hy Guys,

What I see in this case is that Arduino Due can only supports 3.3 v in the i/o. So, dmx works with 5v.

I supose that It can works with the correct resistances... but it is a little dangerous.

mcnobby · May 19, 2014, 6:50am

Mr Pacheko,

Not quite, I am sure there are several 3.3v RS485 interface chips available on the market (like the LTC1480) - you would need to have this interface chip between the Arduino pins and the DMX outside world. DMX works on a differential bus system and not 0-5v as you stated.

I have been using SN75176, which I believe will work at 3.3v but I havent tested it

Regards

Gotubatur · June 23, 2015, 7:23am

One year later I have the same Question.
Is there already an solution how to use the Arduino DUE as an DMX interface? Or is there already a ported libery?

MarkT · June 23, 2015, 11:12am

What is the issue - it has a UART and GPIO, that's all you need, surely?

mrektor · September 5, 2016, 11:06am

i also have the same question, is it avaiable a DMX library for the Due?

pjrc · September 5, 2016, 12:46pm

Here's some code I recently wrote to transmit DMX on Teensy. Maybe it could work on Due? It uses Serial2 with only the normal functions.

github.com

PaulStoffregen/SOAK2016/blob/master/controller/leds.cpp

#include <Arduino.h>
#include "soak.h"

#define CHANNELS  27

static unsigned char ch[CHANNELS];
static int state=0;
static int chindex=0;
static int refresh_needed=1;
static elapsedMicros transmittimer;

void leds_update()
{
	int num, avail;

	switch (state) {
	case 0: // idle
		if (refresh_needed == 0) return;
		Serial2.begin(83333, SERIAL_8N1);
		Serial2.write(0);

This file has been truncated. show original

You'll probably need to use the elapsedMillis.h library, since Due doesn't have this feature built in.

You'll probably also need to use a recent version of Due's core library, since this uses availableForWrite().

mrektor · September 6, 2016, 9:54pm

I tried but nothing.

Do you think it's hard to implement it from zero?

is there any resource where it's described the protocol?
Maybe trying to understand how the library for the UNO works should do the trick?

i'm open to suggestions

pjrc · September 7, 2016, 12:49am

mrektor:
I tried but nothing.

That code definitely did work on Teensy. With the recent improvements to Due's hardware serial code, it really ought to work.

How did you try? Did you copy these 3 functions and create a simple loop() and setup(). Maybe post the code you actually tried (pretty much always the best way to get help on any forum....) and a photo of how you actually wired up the hardware (again, always the best way to get help with things that should work but didn't....)

Dueet · September 23, 2016, 4:10pm

Intresting different approach of code setup @Paul I have reviewed a few DMX lib's for the normal arduino's and they work with a interupt generated when they receive a framing error (generated when the break is active)

I have do dive more into the uart / usart code from the DUE to see if this will be portable for the DUE too..

woody072 · October 23, 2016, 7:33pm

Noob here trying to get DMX Shield to work on DUE. I can see that an Issue has been logged on the Tinkerkit DMX Shield website, which is the same compile error I am getting :
Arduino: 1.6.4 (Windows 8.1), Board: "Arduino Due (Programming Port)"

C:\Users\paulw\Documents\Arduino\libraries\DmxMaster-master\DmxMaster.cpp:6:20: fatal error: avr/io.h: No such file or directory
#include <avr/io.h>
^
compilation terminated.
Error compiling.

This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.

Wondered if anyone could point me in the right direction?
I have added "AVR Standard C time library" but no impact...

Thank you

system · October 23, 2016, 7:39pm

The Due is an ARM, not an AVR

richardfontaine · September 20, 2017, 2:43pm

https://github.com/michelvergeest/DmxDue

lacanau · April 22, 2018, 10:32pm

I've recently worked on a project that used Arduino Dues and the DMX protocol. I needed to use a shield and a logic level converter. This is a script which should assist you in reading the DMX and making sure you're getting the correct values:

Deu5 · June 17, 2018, 10:59pm

I'm too having trouble finding a library to work with my Due. I downloaded Richardfontaine's library but there is no example code. Does anyone know how to use it?

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DMX on Arduino DUE (DMXSimple/DMXSerial)

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