Radio Channels

In this activity, learners begin by experiencing what happens when everyone tries to communicate on the same radio channel using micro:bits. They quickly discover the confusion this creates, then shift to selecting a unique channel to communicate with just one friend. This hands-on exploration mirrors how real-world radio systems—like Wi-Fi, Bluetooth, and walkie-talkies—use different channels to make sure messages reach the right destination. Learners use the radio blocks in MakeCode to send messages from one micro:bit to another, helping them understand how radio communication works and why private, intentional connections matter in both technology and everyday life.