Before connecting to a host system such as Raspberry Pi, be sure to checkout the hardware setup instructions here.
Once connected, you can power up Ardh@t , either from battery or using the onboard DC barrel Jack , and the orange status LED will pulse.
To turn the Pi or compatible on, push the navigation switch, and the status LED will stay permanently illuminated.
At this point, Ardh@t is ready to communicate over the Firmata channel. For more info on which host apps to use, see here.
If you want to program Ardh@t directly from Raspberry Pi, there are full instructions here, but for the impatient, here’s the quick way to get the Arduino IDE up and running with Ardh@t .
~ $ git clone email@example.com:Ardhat/avrdude-rpi.git
~ $ cp autoreset /usr/bin
~ $ cp avrdude-autoreset /usr/bin
~ $ mv /usr/bin/avrdude /usr/bin/avrdude-orig
~ $ ln -s /usr/bin/avrdude-autoreset /usr/bin/avrdude
# => Now open the Arduino IDE and start programming Ardhat!