I found this board, but I have another question, How can I access to the PINs and how is my addressing when I connect four same boards together.?
viewtopic.php?p=805370#p805370

http://d1j1kxp9fqehmk.cloudfront.net/catalog/product/cache/1/thumbnail/9df78eab33525d08d6e5fb8d27136e95/0/3/03_124_20.jpg Hello, I found this adapter module to extend my GPIOs (Infinity Cascade GPIO Expansion IO Extend Adapter Module http://www.sainsmart.com/sainsmart-infinity-cascade-gpio-expansio...

Yes, exactly it's an art project.

Thanks mikronauts, my question is about controlling about 100~200 micro stepper motors (something like this: http://www.amazon.com/10PCS-Phase-stepper-D6xH11mm-Copper/dp/B00M7QQIZ6/ref=pd_sim_421_1?ie=UTF8&refRID=1RD35KDQ89QRYVMTZ7F8 ) with one raspberry pi. I could manage 4 motors with L298N driver...

thank you, I'll google it, however I can't find any good article/sample to control motors with these MCP4922 like microchips.

Dear mahjongg,
Thanks but how?

Dear Friends,
I know a little about GPIO and I controlled 4 motors (DC/Stepper/Servo/...) with GPIO pins at same time. But if I want control about 100 or more motors(DC/Stepper) with one raspberry, is it possible?

Thanks