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mathertel / DMXSerial

An Arduino library for sending and receiving DMX packets.
BSD 3-Clause "New" or "Revised" License
336 stars 79 forks source link

Send & Receive mode #16

Closed anklimov closed 4 years ago

anklimov commented 7 years ago

Hello I'm using DMXSerial in my project couple of years and thank you for your effort! My controller receiving DMX signal and sending simultaneously Unfortunately, that is not possible to use DMXSerial bi-directionally That was a reason, why I'm using DMXSerial for receiving and DMXSimple for sending, that ti not efficient so much. Is it possible to add possibility to operate DMX in 2-way mode (with different buffers, of course)? If will be possible to share one UART for this - it might be brilliant

DetsCastelli commented 4 years ago

I think the problem is, that the baud rate is changed to send a break signal. All bytes coming in during this time can then not be recognized correctly. Maybe it's possible to use a timer to send the break

mathertel commented 4 years ago

not possible. You need multiple independent Serial interfaces to support this scenario.

Tejes commented 4 years ago

The MEGA2560 has 3 hardware UARTs. I'm in the design phase of an application that would be a "man-in-the-middle" for a DMX bus, mostly forwarding everything that comes in, but altering a few addresses if set to. Is it really only possible using two different libraries for the same thing? I have Arduinos with 328p and MEGA2560, also a Raspberry Pi 3B+, but no luck with this topic on any of them yet. Could you recommend something? I'm more of a software guy than a hardware one.

glaing commented 4 years ago

I'm also trying to achieve this scenario with DMX Serial and this shield https://www.amazon.com/Arduino-TinkerKit-Master-Shield-T140060/dp/B00EIB4ZF8

It's not working yet, but I'd be interested to hear how you've got on with your setup!