Topic: CHB project released into the wild

I just installed a project into a local restaurant driven by the's an audio playback device that hassles people as they come and go from the restroom.  The CHB was ideal for this because it lets me leave the device unattended- the entire application and the sound files are resident on a flash drive, so changing the files is trivial for the end user even without my intervention.

Scant details are on my blog at I hope to make a richer website with code snippets and a schematic soon, but it's a low priority.

Point of interest- I used Python to write the code for the state machine, and I adapted the regutil program to a .dll so I could call it through the CTYPES library.  That much I really do need to get out in to the community because I can imagine it would be useful to others.