Dangerous Prototypes Open Source Hardware

USB POV Toy

October 04, 2011, 05:08:54 pm

The poor USB POV Toy has never managed to get a working firmware. I spent the last two days working on it, but no real big progress.

Attached is the current code, ported to the JTR-Honken USB stack. It is probably the first 18F24J50 port of the stack since the early demos and it does not work. Compiles fine, but with "device not recognized" error. Under debug it seems stuck and never connect. The stack used to work on this chip, but it has undergone many changes. My current goal is to get that going before I do any more, but for now I'm moving onto Bus Pirate v4.

This code uses the CC BY-SA MMA7455L library by Markus from here:

It uses the JTR-Honken stack current version from the USB IR Toy.

It currently only reads the accel and reports the data for a simple graph and fire cube demo in Processing.org.

Re: USB POV Toy

Reply #1 – October 05, 2011, 08:01:22 am

Thanks to JTR's help with the linker file this is now running on the open source USB stack. Also in SVN.

Please note that this is my work in progress, very messy and not properly attributed/licensed yet.

Re: USB POV Toy

Reply #2 – October 05, 2011, 05:14:08 pm

The firecube demo seems pretty cool! :P

Not to mention the chart seems to be a useful tool, you made this all using processing? I think I should look into it someday some more! :P I played around with it on my X10 but did not find it of much interest, but if it can be used to make a graph like that, then that means it might be worth another look at.

Re: USB POV Toy

Reply #3 – October 06, 2011, 01:07:56 pm

It isn't totally awesome or anything, but it was pretty easy. I just used some examples from the web.