Fish Dish Pi from Pi Supply via smstext adventures in geocaching and raspberry pi:
Ive managed to sit down and try out this simple but efficient add on, three leds, a button and a buzzer.
I needed to figure out the pins so used Daniel Bulls excellent berryio which is web based so all you need to do is type in the internal IP address, type ifconfig on terminal window of pi and go to a web browser on any computer, type pi IP address in the web box and up should come the berryio screen.
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