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The Robot Builder’s R-duino controller allows a robot builder to easily build a small robot that uses 2 small geared DC motors for driving, directly plug in 6 analog sensors, 6 digital sensors or 6 servos. It has an on board 5V 3A LDO voltage regulator, a 3.3V 250mA regulator, a power switch to turn on the regulated power to the electronics, a second power switch to turn on the power to the motors/servos, reset button, power LED, pin D13 LED, 16 MHz crystal, ISP programmer connector and FTDI cable connector. The ATmega328P microcontroller has the Arduino bootloader and the Blink sketch uploaded. The board features 3 jumpers, one to select power for the servo pins, and two for selecting the motor control method, either 2 pins or 3 pins for each motor. You can plug in almost any shield or you can use the standard 0.1″ spacing male headers to build your own home made shield from perf board.
Here is a picture of the assembled board:
Download the Assembly Guide here.