Open Music Labs Forums

I ordered a Mixtape Alpha board from OSHPark (looks great in purple and gold!) and put it together this morning without much trouble. The mixtape.hex flashed and verified via avrdude without any problem. When I power it up, though, it screams at around 3800 Hz, just ear-splitting. I tried mixtape_avr_new.hex instead and it's even worse. The buttons react as expected, and they change the noise it's making (usually louder and more painful), but it's always got that 3800 Hz tone going.

Any thoughts?

That was it! Thanks so much! We'll be putting the other 2 boards together tomorrow at our local hackerspace open night, really glad to have this sorted before then. My hope is we can get some visual artists interested in doing custom art for a second batch.

Here's how they came out:



I don't see new_experimental.hex in the files section on the wiki. Is that the same as mixtape_avr_new?

Thanks again for the help, and bigger thanks for making this open source! I can't wait to start poking at the code and figure out how this thing works. :)

I made a couple of tweaks in Eagle—used a different battery clip I had laying around, and changed the ISP header for pogo pins.

Good point about the vias, thanks!