Tony is working on small expansion boards for the famous Raspberry Pi.
You can read about the development of those modules, called MiniPiio, on his blog:
[checklist]
- Protoboard
- RS232
- Full H bridge
- Relay
- …
[/checklist]
Tony wrote also a very good article on Instructables about how to create a breadboard adapter for Raspberry Pi.
Ciao
come si fa per interfacciare più moduli GPIO??