Software › Buzzer Melody

Buzzer Melody

An original CC0 bare-metal Calliope mini program: it plays "Alle meine Entchen" (a traditional German children's song, public domain) on the on-board loudspeaker by driving the real nRF51 tone path — TIMER2 -> GPIOTE toggle task -> PPI on the speaker pin (P0.29), one note at a time — so the pin emits a square wave at each note pitch. Between notes a musical-note / heart picture scans across the 5x5 matrix. This is the Calliope's headline over the micro:bit v1: it makes real, time-varying SOUND. Unmute with the Sound button.

Download ↓

Format: nRF51 flash image (bare-metal, compiled C)  ·  By: emulators.org  ·  Licence: Public domain (CC0); melody traditional