Sparky

See this blog post for some discussion about the early development. Also check out this discussion thread.

The pinout out of Sparky and names of ports

Version 1.1 replaces the 4 pin rcvr header with a 3 pin header and a solder bridge to select the voltage. This allows using a standard 3 pin servo cable without modification.

The schematic

Here is the version 1.0 schematic and the version 2.0 schematic as pdfs.