Raspberry Pi Software Servo board:
2012-12-05 Card tested on Raspberry Pi, working!
2012-12-04 PCBs fetched. First card soldered and working!
What is it?:
It's a small board that connects to a Raspberry Pi and allows you to
control up to eight RC servos (or ESCs)
via a special
kernel module using
the DMA of RPi.
The 2x13 pin header on top is a pass through if you want
to connect other cards using the GPIO-port. The SW uses 8
GPIO-pins for controlling servos.
The card has a 74HC541 to make the 3.3V levels 5V and protect the RPi.
All the work is done by the kernel module, the card is mostly for
convenience and to get nice connectors.
If you rather build your own, I'll post the schematics here soon.
Buy a card
Complete card: $15 + postage
Card with all pin headers for you to solder (included): $10 + postage
Worldwide postage is $5 except for Sweden which is $2.
Contact me at: mikael(at)chroma.se