The AlphaBot2 robot kit is designed to use with the BBC micro:bit (not included) and features a great list of popular robot features including line tracking, obstacle avoiding, ultrasonic ranging, Bluetooth remote control (via Android app), RGB LEDs, a buzzer and more! Thanks to the highly integrated modular design, it\’s very easy to assemble without any soldering or fiddly wiring. After a few minutes assembling the kit, you\’re ready to code! The user guide can be found here. Important notes: This robot requires a BBC micro:bit which is not included but can be purchased here. 3.6V 14500 rechargeable lithium batteries with at least 800mAh capacity are required but not included (coming soon to the store!). AA batteries will not work! Features AlphaBot2 employs a 2-layer structure to provide excellent stability and compatibility. AlphaBot2-Base (the lower base chassis) 5-ch infrared sensor, analogue 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 colour lighting AlphaBot2 for micro:bit (the upper adapter board for the 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 Dimensions: 110xx x 98mm Kit contents 1x AlphaBot2 for micro:bit (adapter board) 1x AlphaBot2-Base (base chassis) 1x Ultrasonic sensor 1x FC-20P cable 8cm 1x USB type A plug to micro B plug cable 1x AlphaBot2 for micro:bit screws micro:bit not included What\’s on the AlphaBot2 Base 1) AlphaBot2 control interface: for connecting sorts of controller adapter board2) Ultrasonic module interface3) Obstacle avoiding indicators4) Omni-direction wheel5) ST188: reflective infrared photoelectric sensor, for obstacle avoiding6) ITR20001/T: reflective infrared photoelectric sensor, for line tracking7) Potentiometer for adjusting obstacle avoiding range8) TB6612FNG dual H-bridge motor driver9) LM393 voltage comparator10) N20 micro gear motor reduction rate 1:30, 6V/600RPM11) Rubber wheels diameter 42mm, width 19mm12) Power switch13) Battery holder: supports 14500 batteries14) WS2812B: true color RGB LEDs15) Battery charging indicator16) 5V USB battery charging port17) Power indicator What\’s on the AlphaBot2 for micro:bit (upper layer) 1) micro:bit connector2) AlphaBot2-Base header: for connecting with the base board3) RT9193-33: 3.3V voltage regulator, stable power supply for the micro:bit4) PCA9685: PWM control chip, I/O expander, I2C interface5) TLC1543: 10-bit AD acquisition chip, allows the micro:bit to use analog line tracking sensor6) Buzzer7) MP1584 5V voltage regulator Resources Product Wiki and user guide