BBC micro:bit Board V2.21

The BBC micro:bit V2 is a compact, beginner-friendly microcontroller board designed for learning electronics and coding. It features a powerful Nordic nRF52833 processor, built-in microphone and speaker, 5×5 LED matrix, motion and temperature sensors, and Bluetooth connectivity. The board supports MakeCode, Python, and Scratch, making it ideal for classroom projects, prototyping, and interactive experiments.

Features / Specs

• Manufacturer: BBC
• Board Model: micro:bit V2.21
• Processor: Nordic nRF52833-QIAA (64MHz ARM Cortex-M4F with Floating Point Unit)
• Flash: 512kB
• RAM: 128kB
• Supply Voltage: 5VDC via the USB Connector / 3VDC via the Battery Connector / 3VDC via GND and 3V pins on the Edge Connector
• USB Interface Chip: Nordic nRF52820-QDAA
• USB Connector Type: Female Micro USB Socket
• Audio Features: Onboard Knowles SPU0410LR5H-QB-7 MEMS Microphone with LED Indicator / Onboard speaker
• Motion Features: Onboard ST Micro LSM303AGR Accelerometer & Magnetometer
• Indication LEDs: 5×5 LED Matrix (25 LEDs in Total) / Power LED / USB Activity LED
• Buttons: 1x Reset Button / 2x User Buttons
• Other User Input: Capacitive Touch Sensor
• Connectors: 1x JST 2.0mm 2-Pin Battery Connector (3VDC) / 1x Edge Connector with SPI, UART, I2C, and more interface connections
• Dimensions: ~(51.6mm x 42mm x 11.65mm)

Resources

• BBC micro:bit Home Page
• BBC micro:bit Hardware Info Page
• BBC micro:bit Educational Foundation Youtube Channel