This controller will be designed for installation into an Eee 700-series netbook to serve the following purposes:

1. Provide a communications interface to I2C, SPI and UART devices over USB
2. Control power switching to various internally-mounted low-current (~0-25mA) and high-current (~25-125mA) devices.
3. Provide non-USB-Host 5V power to the high-current USB devices through high-current SPST switches so as not to overload the USB Bus (Update: This will be done by off-board MOSFETs. There just wasn't enough room on the board to allow it to still fit in the space allocated for the MDC1.5.

While at the Smiths Falls Amateur Radio Club Flea Market, I picked up a bunch of breadboards and unetched PCBs from a goodie-bag dealer (one with little bags of misc parts for a set price).

Inexpensive PCB milling