mtongnz / mtduedmx Goto Github PK

If you're interested in the Arduino Due shield I'm designing, leave a comment here. It should be available towards the end of this year.

It would be very nice to use the due for receiving DMX Signals.

Hello,
Thank you for your answer.
Here is my code and explanations:

//Mycode with Due and your library
#include <mtDueDMX.h>
uint8_t dmxData[512];
uint8_t dmxDirPin = 7; // Pin 7 on DUE

void setup()
{
mtDueDMX[0]->begin(DMX_TX, dmxData, dmxDirPin);
mtDueDMX[0]->startOutput();
dmxData[4] = 255; // set PAR master brightness to max
dmxData[5] = 255; // set PAR RED to max
}

-The Grove – DMX512 is a adapter from Grove interface to DMX512 interface (industry standard EIA-485 interface. The module is based on SN75176 chip which can balance transmission lines and meet ANSI Standard EIA-485 interface

-Test is done on a small PAR LED RGBW (… 4=Power,5=Red,6=Green,7=Blue…)

With this very small DUE sample of code, we can see that a message is read by the PAR LED (very small led in the back is blinking) but not any light is showing up. I tested many other examples, in loops with many color, on other output pins, but nothing is coming.

-For comparison, here is a code working perfectly well with Arduino Uno and same hardware:

#include <DmxSimple.h>

void setup() {
DmxSimple.maxChannel(100);
DmxSimple.usePin(3); // Pin 3 on UNO
DmxSimple.write(4, 255); // set PAR master brightness to max
DmxSimple.write(5, 255); // set PAR RED to max
}
RED is showing up on PAR

Do you have any idea of what I can check more?
Best regards.
Philippe

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