This product is developed, manufactured, and tech supported by Waveshare. Overview1. This kit comes with controller board UNO PLUS, AlphaBot robotic platform (line tracking, obstacle avoidance, speed measuring, IR control), and ultrasonic sensor. 2. While utilizing UNO PLUS as controller board, this kit is based on the Arduino software/hardware open source platform. Combined with the modular design, it's an ideal platform to get started with AlphaBot Features1. Raspberry Pi/Arduino interfaces, works with either one separately, or both 2. Arduino extend header, supports Arduino shields 3. Modular design, plug-and-play modules like line tracking, obstacle avoidance, speed measuring, 4. etc. eliminating the trouble of connecting mess wires. 5. LM298P motor driver with diode protection circuit, more safety 6. LM2596 voltage regular, provides stable 5V power to the Raspberry Pi/Arduino 7. TLC1543 AD acquisition chip, allows the Pi to use analog sensors What's on the UNO PLUS 1. ATMEGA328P-AU 2. AMS1117-3.3 : 3.3V voltage regulator 3. NCP1117ST50T3G : 5V voltage regulator 4. FT232RL : USB to UART convertor 5. Arduino interface - Compatible with standard Arduino interface with two additional analog inputs A6 (config the CFG), A7 solder pads provided, supports prototype breadboard 6. ICSP interface 7. MICRO USB connector : for uploading program OR serial port debugging 8. Power output header : 3.3V OR 5V, voltage level configured by the onboard power configuration switch, used as power output OR common-grounding with other boards 9. FT232 pins : for burning Bootloader into the microcontroller 10. DC input : 7V ~ 12V 11. Reset button 12. Power indicator 13. Serial port Rx/Tx indicator 14. User LED 15. 500mA fast self-recovery fuse 16. Power configuration : for configuring the operating voltage 17. Bootloader selection switch - Turn ON : the board will reset when power-up OR other USB devices were detected connecting to the PC - Turn OFF : the onboard program runs immediately when power-up, and the board will not reset when other USB devices were detected connecting to the PC What is on the AlphaBot Mainboard1. Raspberry Pi interface: for connecting Raspberry Pi 2. Arduino interface: for connecting Arduino 3. Motor interface 4. Ultrasonic module interface 5. Servo module interface 6. Obstacle avoidance module interface 7. Speed measuring interface 8. Battery holder: supports 18650 batteries 9. Reserved power input (not soldered): for connecting other external power supply 10. Arduino expansion header: for connecting Arduino shields 11. UART interface: for connecting Bluetooth module, to control the robot remotely via Bluetooth 12. SPI interface: for connecting NRF24L01 wireless module 13. Line tracking module interface 14. TLC1543: 10-bit AD acquisition chip, allows the Pi to use analog sensors 15. LM298P: dual H bridge motor driver chip, up to 2A current 16. Anti-reverse diode 17. Power switch 18. LM2596: 5V regulator 19. Power indicator 20. UART switch: turn on to enable serial communication between Raspberry Pi and Arduino 21. IR receiver: control the robot remotely via infrared 22. Raspberry Pi/Arduino selection: select the Raspberry Pi or Arduino to control the robot peripherals Photos