Inexpensive RDM Sniffer

[SeanSill]

Last weekend, Simon developed a tool for Open Lighting Architecture that used the Saleae Logic as an rdm sniffer. It works great but really needs to have an RS485 driver to translate to TTL so the bits will get sampled correctly.

I planned on creating such a board and a small enclosure to house the board. I plan on it having an a Male and Female 5 pin XLR, and a few connection points for the logic. It will be powered off the USB 5V but the RDM input will be isolated from the supply.

These will probably sell for $50. I just wanted to gauge any interest. They should be done by Plugfest.

Comments? Criticisms? Snide Remarks?

If you want to check out the code and test it, instructions are located at http://opendmx.net/index.php/Download_%26_Install_OLA.

Simon did a write up on how it works here:
http://opendmx.net/index.php/Logic_RDM_Sniffer

Saleae Logic
http://www.saleae.com/logic

More features to be added to the sniffer tool later.