Build 48 different projects with this comprehensive LEGO-compatible building kit for BBC micro:bit. From robots and vehicles to mechanical systems and interactive gadgets, the Wonder Building Kit combines coding with hands-on construction for engaging STEM learning. Powered by the Wukong expansion board with built-in rechargeable battery, the kit includes over 400 brick pieces, sensors, motors, and servos. Program with MakeCode's visual blocks to bring your creations to life. Key Features 48 Building Projects – Vehicles, robots, mechanical systems, and interactive gadgets Wukong Expansion Board – Compact controller with 400mAh rechargeable battery LEGO Compatible – Standard 7×5 baseplate fits LEGO bricks Dual Motor Outputs – M1 and M2 for driving wheels and mechanisms 8 Servo Outputs – S0-S7 for arms, grippers, and moving parts RGB LEDs – 4 programmable rainbow LEDs plus atmosphere lighting Line-Tracking Sensor – For building line-following robots Sonar:bit Ultrasonic – Distance sensing for obstacle avoidance Water Level Sensor – For liquid detection projects Example Projects Vehicles: Line-following car, crawler, road sweeper, motorcycle Robots: Walking robot, robot arm, robot dog, cricket robot Mechanical: Forklift, helicopter, seesaw, gyroscope Interactive: Basketball counter, smart bin, drawing machine, guitar Wukong Board Specifications Battery: 400mAh lithium polymer (rechargeable) Voltage: 3.7V–5V Motor Outputs: 2 (M1, M2) Servo Outputs: 8 (S0–S7) GPIO: P0, P1, P2, P8, P12, P13, P14, P15, I2C Size: 40 × 58mm Operating Temperature: -20°C to 60°C Package Contents 1× Wukong expansion board 1× Line-tracking sensor 1× Sonar:bit ultrasonic sensor 1× Water level sensor 2× Motors 400+ Building brick pieces Note: BBC micro:bit sold separately. Resources Wonder Building Kit Wiki & Tutorials