Micro:bit Tone Player

A simple tone player using BBC Micro:bit board. Watch the video below (click here) to see its action, then follow the instructions to build your own!

1. What You Need 🎁

To build this project, you need the following items:

• a Micro:bit board
• 2 pcs mini alligator wires
• a PC/laptop with any OS
• a speaker

2. Schematics 🔧🔨

• Connect your speaker's audio jack to Micro:bit as the following picture:

  

3. Code 📋

• Open Microsoft Makecode for Micro:bit site (https://makecode.microbit.org/) to create commands for Micro:bit. You can write the code using Javascript or simply choose Blocks menu.

  • If you choose Javascript, write the lines below:

    let lagu = 0
    
    input.onButtonPressed(Button.B, () => {
        if (lagu == 5) {
            lagu = 1
            basic.showNumber(lagu)
            music.beginMelody(music.builtInMelody(Melodies.Entertainer), MelodyOptions.Once)
        } else {
            lagu = lagu + 1
            basic.showNumber(lagu)
            if (lagu == 1) {
                music.beginMelody(music.builtInMelody(Melodies.Entertainer), MelodyOptions.Once)
            } else if (lagu == 2) {
                music.beginMelody(music.builtInMelody(Melodies.Blues), MelodyOptions.Once)
            } else if (lagu == 3) {
                music.beginMelody(music.builtInMelody(Melodies.Nyan), MelodyOptions.Once)
            } else if (lagu == 4) {
                music.beginMelody(music.builtInMelody(Melodies.Birthday), MelodyOptions.Once)
            } else {
                music.beginMelody(music.builtInMelody(Melodies.Wedding), MelodyOptions.Once)
            }
        }
    })
    
    input.onButtonPressed(Button.A, () => {
        if (lagu == 0) {
            lagu = 5
            basic.showNumber(lagu)
            music.beginMelody(music.builtInMelody(Melodies.Wedding), MelodyOptions.Once)
        } else {
            lagu = lagu - 1
            basic.showNumber(lagu)
            if (lagu == 1) {
                music.beginMelody(music.builtInMelody(Melodies.Entertainer), MelodyOptions.Once)
            } else if (lagu == 2) {
                music.beginMelody(music.builtInMelody(Melodies.Blues), MelodyOptions.Once)
            } else if (lagu == 3) {
                music.beginMelody(music.builtInMelody(Melodies.Nyan), MelodyOptions.Once)
            } else if (lagu == 4) {
                music.beginMelody(music.builtInMelody(Melodies.Birthday), MelodyOptions.Once)
            } else {
                music.beginMelody(music.builtInMelody(Melodies.Wedding), MelodyOptions.Once)
            }
        }
    })
    
    lagu = 0
    music.beginMelody(music.builtInMelody(Melodies.PowerUp), MelodyOptions.Once)
    basic.showIcon(IconNames.EigthNote)
    
    basic.forever(() => {})

  • If using Blocks, arrange the code like the following picture:

    

• After that, click Download button to get a .hex file for your Micro:bit board. Simply connect your Micro:bit to your PC/laptop, then paste the .hex file into it.

• Done! You're ready to go! Have fun! 😎

Lintang Wisesa 💌 lintangwisesa@ymail.com

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