USB connector
Used to connect the micro:bit to a computer
Helps upload programs and provide power
Reset and power button
Used to restart the micro:bit
Turns the device on or off
Battery socket
Connects a battery pack to power the micro:bit
Allows it to work without a computer
25 LED lights
Arranged in a 5 × 5 grid
Used to display letters, numbers, symbols, and animations
Button A and Button B
Used to control actions in programs
Can be pressed to start games or change outputs
Touch logo
Works as a touch-sensitive button
Can be programmed to respond when touched
Microphone
Detects sound levels
Used in sound-based projects
Microphone indicator
Shows when the microphone is active
Helps protect privacy
Speaker
Produces sound and music
Used for alarms, games, and alerts
Radio antenna
Allows wireless communication
Helps micro:bits send messages to each other
Processor
The “brain” of the micro:bit
Runs programs and controls all parts
Compass
Detects direction such as North, South, East, and West
Used in navigation projects
Accelerometer
Detects movement, shaking, and tilting
Used in step counters and motion-based games
Edge connector
Located at the bottom of the micro:bit
Used to connect accessories and expansion boards
Pins (Pin 0, Pin 1, Pin 2)
Used to connect external components like LEDs and sensors
Can act as input or output pins
3V pin
Provides power to external components
GND (Ground) pin
Completes the electrical circuit
Needed for most connections