Sound Amplifier

This project is about building a sound amplifier to amplify the sound of a speaker.

I first watched a video on what a sound amplifier is and used legos to build a prototype. I subsequently modified the prototype during testing phase as I needed to created a space for microbit to fit in and two holes for sound to escape and amplify.

Supplies

1. Lego
2. Microbit and buzzer
3. Makecode program
4. Battery and wires
5. Ruler to measure prototype

Step 1:

We research and view a few past prototype examples that use materials like paper cups and cut out milk bottles that can allow sound to amplify.

Step 2:

We experiment using lego pieces that I think reflect a sustainable building which can allow a buzzer to amplify sound. A buzzer about 1.5cm x 1.5 cm which is small enough to be slot inside the prototype. You can build your own design. But must have some hollows for sound particle to vibrate and travel out.

Step 3:

We go to the Makecode website and take out the following code to download to microbit.