Made up a sort of prototype PCB in CADStar and sent it away to a new manufacturer I'm trying out. I'm pleased with the quality, two layer eletrical, solderstop, two sided silk screen, and very cheap. Just two minor errors on the PCB on my part: I used 6mm switches instead of 3mm, and there's possibly one air wire, but that could be an auto-router glitch. In the image below, I've mounted the microcontroller, ISP, and a header for unregulated power. This was to test the microcontroller, which worked like a charm.
The board is based around an ATMEGA8, and has most of the standard parts is use: regulator, a few switches, a FET, rotary encoder, USART, I2C, and ISP of course. In addition, all IO ports are fully connected to 2x5 STK500/STK600 type headers with power: Any additional circuitry I can take from the pin headers.
Gerbers, schematics and PCB-file available on request.
Happy hacking!
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