Hi all!
I'll try to explain whats going on with my setup here, english is not my native language so please ask if something is unclear. I got a RPi3 with BitWizard addon board. I have hooked this up to a (aliexpress) QJ-30CHDMX board (actually I got 3 of theese boards and all of them act the same)
What happens is that it seems to be irregular speed/comunication issues in the DMX chain. I watch the activity LED on the 30Ch board an notice irregular data coming in and the connected LED's (30CH output) also behave acordingly. Various loads such as mouse movment does interfear with the DMX communication/makes it worse, unplugging mouse does nothing good.. What is so strange is that it can get COMPLETLY stable after everything from 10sec to never. And once it gets stable it stays stable.
I have tried every BitWizard/RPi3 setup I have found online, e.g disable bluetooth, disable console on com, swapping com ports, locking core clock @ 250MHz etc...
Using latest stable prebuildt image. Have tried 2 diffrent dmx cables (homemade 20cm long) and with and whitout terminator.
What to try next? Have anyone noticed the same behavior?
RPi3, BitWizard & 30CH DMX communication issues
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spett
- Posts: 2
- Joined: Tue Jul 10, 2018 4:40 pm
- Real Name: Stian
Think there must be something going on with either BitWizard or the QLC software cause once it is stable it's rock solid. Once it is stabel I can unplug / replug power to 30CH board, change 30CH board and everything works fine.
Anyone?
Anyone?