7-segment for micro:bit by Monk Makes

The 7-Segment for micro:bit by Monk Makes is a 4-digit 7-segment display designed specifically for BBC micro:bit. It can display numbers, letters, and limited characters using simple serial communication from a single micro:bit pin.

Powered directly from the micro:bit's pins, this display requires no external power supply. Communication uses serial at 9600 baud, making it simple to program with both MakeCode blocks and MicroPython.

Key Features

• Single-Pin Communication – Uses one micro:bit pin plus power (GND and 3V)
• Powered from micro:bit – No external power supply needed
• Serial Interface – Send messages using micro:bit's Serial blocks at 9600 baud
• Buffered Mode – Flicker-free display updates for repeatedly changing values
• Text & Numbers – Display both numeric values and text characters
• Bolt-On Option – Can be physically bolted to the micro:bit

Programming

Works with both MakeCode (block programming) and MicroPython. Serial redirect is used to send data on the chosen pin at 9600 baud. Special characters control display behaviour:

• "/" – Clears the display and returns to non-buffered mode
• "," – Switches to buffered mode and triggers a display refresh
• "*" – Displays an approximation of the degrees symbol

Ideal For

• Displaying sensor readings (temperature, light, etc.)
• Countdown timers and clocks
• Score displays for games
• Educational projects with micro:bit

Package Contents

• 1× 7-Segment Display for micro:bit