On 11/30/18 4:36 PM, Martin Flynn via vcf-midatlantic wrote:
Trying to get a lighting controller to talk to 1986 vintage microprocessor based lighting control packs.
The PHY layer of DMX-512 (lighting control protocol) is RS-485.
Anyone have code samples that could be used as a starting point, or should I break down & buy the USB to DMX-512 cable?
Python has libraries (not sure that's what you want). There are also Arduino libraries. You might be able to hack together a DMX sniffer with some RS485 Chips. I have a couple of USB RS485 dongles that would allow you to toss the Python Library onto any modern computer. -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies