claudeheintz/lxsamd21dmx

LXSAMD21DMX is a driver for sending or receiving DMX using an AVR SAMD21 microcontroller.

lxsamd21dmx's Issues

multiple definition of `SERCOM4_Handler'

I just installed this library and tried to get one of the examples to work. Unfortunately I get this error when trying to compile for the MKR WiFi 1010. Is there any way to resolve this?

core\variant.cpp.o: In function `SERCOM4_Handler':
C:\Users\johan\Documents\ArduinoData\packages\arduino\hardware\samd\1.8.11\variants\mkrwifi1010/variant.cpp:256: multiple definition of `SERCOM4_Handler'
libraries\LXSAMD21DMX-master\LXSAMD21DMX.cpp.o:C:\Users\johan\Documents\Arduino\libraries\LXSAMD21DMX-master\src/LXSAMD21DMX.cpp:38: first defined here
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino MKR WiFi 1010.

RDM system lockup

When plugging my Arduino into a PathPort RDM DMX node I have been experiencing intermittent full system lockups when reading DMX.

I have never experienced problems on any non RDM devises.

Is there a way to fully disable RDM?

flashing

I tried to read the DMX data following the scheme inserted in the LXSAMD21DMX.h file on an Arduino M0 Pro and also on a MKR1000 but the incoming DMX value, also displayed on the Serial Monitor, continues to "dance" between the real one, sent by the DMX controller and the value 0 creating a flickering of the LED that I connected to PWM pin 8.
Is there something more to insert between the MAX485 and the Arduino, since there is 5V at the output and the Arduino runs at 3.3V?
My name is Giuseppe and I write from Italy. Thank you if you will help me.

What pin on the MKR1000

I'm trying to get this library to work with an MKR1000 and a MAX485 module, without any form of success. By default, without modifying the library and by using the DMXFadeTest.ino sketch, what pins should I hook up the DI pin of the MAX485 module to? D4?

How to use this library with the CTC-DRA-10-R2 DMX shield

Hello,
I'm developing a system to control a LED strips with FASTLED receiving DMX in a Arduino Zero with the CTC-DRA-10-R2 DMX shield: https://www.dfrobot.com/product-984.html.

I would greatly appreciate any tips in how to use this library with the mentioned DMX shield. I have been reading along the code, but I'm not able to find what to modify.

Many thanks,
Antonio.

DMX Output & Encoder Cause Crash

When using DMX Output and Pau Stoffregen's encoder library with interrupts, fast movement of the encoder causes the Arduino to fully lock-up.

The same behaviour is not present when reading DMX.

got_DMX is not zeroed after DMX signal disconnection

Hello Claude,
thank you so much for sharing this DMX driver/library! I have been doing some tests the past few days-specially as an input- and works quite nice on a sparkfun SAMD21 breakout board.

The only thing I noticed is, while got_DMX works after a DMX signal is applied on the input pin (D5), it is not being zeroed upon disconnecting the DMX signal.
Although I am completely new to the ARM/SAM/sercom architecture I will try to see inside your library if I can add a flag with a timeout.

Thank you again for your nice work!
George