AVR-Chat

I have been looking at using a 2313 for an expermental pulse motor, but by
the time I add enough address decoder parts to do what I want, the circuit
starts getting a bit complex. I started think about maybe using a controller
per coil plus 1 master controller. The problem I see with the little 8 pin
atmel chips is, while they have a lot of stuff in them, you still end up
needing a number of external parts to demultiplex and get at them. The coil
controller needs at least 2 output bits, one input and one interupt. It
would also need a serial port of some kind to receive commands form the
master control, and and ADC that can be used to monitor the voltage across
the coil. I like the Atmel stuf because the chips are cheap, many being
under $5, and they have free development software.