Robotic platform Karel consists of two boards, upper and lower. Upper board contains:
- Power switch
- Motor voltage regulator
- Motor drivers
- +5V regulator
- +3.3V regulator
- Microcontroller
- User push-buttons (4)
- User LEDs (4)
- User potentiometer
- Bluetooth & Level Shifter
- ISP, USB, USART interfaces
The circuit was designed by Mihai Agape.
Licensed under the TAPR Open Hardware License (www.tapr.org/OHL).