No-Code Example for Making a Alarm

This article offers a complete guide on creating a repeat alarm using micro:bit, covering everything from hardware setup to software programming, with visual aids and sample codes for both Mind+ and Makecode platforms.

Hardware Preparation

BOS0003 Self Locking Switch	BOS0020 Buzzer Module	BOS0035 Mainboard-3IO

Wiring Diagram

Result

The buzzer sounds when the switch is pressed.