AlphaBot2 Robot Kit for micro:bit

This AlphaBot2 robot kit is designed to use with the BBC micro:bit (not included). It features rich common robot functions including line tracking, obstacle avoiding, ultrasonic ranging, Bluetooth/2.4G remote control, etc.

Thanks to the highly integrated modular design, it is fairly easy to assemble by a snap, no soldering, no wiring. After a few minutes spent on hardware assembling, you're almost there, our open source demo codes is ready to help you get started fast.

AlphaBot2 Features

AlphaBot2 employs a 2-layer structure to provide excellent stability and compatibility.

AlphaBot2-Base, the lower base chassis:

• 5-ch infrared sensor, analog output, combined with PID algorithm, stable line tracking
• Onboard modules like line tracking, obstacle avoiding, needs no messy wiring
• TB6612FNG dual H-bridge motor driver, compared with L298P, it's more efficient, more compact, and less heating
• N20 micro gear motor, with metal gears, low noise, high accuracy
• Onboard RGB LEDs, true color lighting, pretty cool

AlphaBot2 for micro:bit, the upper adapter board for controller:

• micro:bit dedicated connector, for easily connecting with the micro:bit
• MP1584 voltage regulator, provides stable 5V output
• RT9193-33 voltage regulator, provides stable 3.3V voltage to the micro:bit
• TLC1543 AD acquisition chip, allows the micro:bit to use analog sensors
• PCA9685 PWM control chip, I/O expander
• Onboard buzzer to play music

1. AlphaBot2 control interface: for connecting sorts of controller adapter board
2. Ultrasonic module interface
3. Obstacle avoiding indicators
4. Omni-direction wheel
5. ST188: reflective infrared photoelectric sensor, for obstacle avoiding
6. ITR20001/T: reflective infrared photoelectric sensor, for line tracking
7. Potentiometer for adjusting obstacle avoiding range
8. TB6612FNG dual H-bridge motor driver
9. LM393 voltage comparator
10. N20 micro gear motor reduction rate 1:30, 6V/600RPM
11. Rubber wheels diameter 42mm, width 19mm
12. Power switch
13. Battery holder: supports 14500 batteries
14. WS2812B: true color RGB LEDs
15. Battery charging indicator
16. 5V USB battery charging port
17. Power indicator

1. micro:bit connector
2. AlphaBot2-Base header: for connecting with the base board
3. RT9193-33: 3.3V voltage regulator, stable power supply for the micro:bit
4. PCA9685: PWM control chip, I/O expander, I2C interface
5. TLC1543: 10-bit AD acquisition chip, allows the micro:bit to use analog line tracking sensor
6. Buzzer
7. MP1584 5V voltage regulator