User LEDs: Five user LEDs, controllable from the microcontroller. They share the same microcontroller
pins used for LCD. Not accessible while the shield is connected.
Shield Connectors: Two sets of shield connector for attaching the shield and thus controlling LCD,
obstacle sensors and optional Bluetooth module.
User pot: Connected to an ADC pin of the microcontroller via pot jumper.
User Buttons: Three user configurable buttons.
Alternate Power Input: In case you want to use a different battery instead of the one provided with
the package. Be careful about the voltage polarity if using these pins.
Reset Button: To reset the atmega328 microcontroller.
Buzzer: Just an audio output.
Motors: High torque 250 rpm motors.
Battery connector: For plugging in the 2S Li-ion battery provided with the package.
Power switch: On-off switch. It’s also a power selector switch for choosing power either from battery
or USB port. Slide towards USB port to select USB power and you’ll be able to test your program
while the battery is charging. It also switches off the robot if USB cable is not connected. Slide
towards battery connector to select battery power. You can run motors only on Battery power.
Power LED Toggle Switch: If you don’t like to keep the power LEDs always turned on or simply want
to save some battery juice.
