One buzzer and many buttons are connected to an Arduino. Buttons represent piano keys so when a user press one of them, the buzzer will play a note that it defined. In the future, I hope there will be an "auto" mode, where keys are automatically associated with notes.
To make this piano, you will need :
- An Arduino. Any model will do the job
- A passive buzzer
- Some buttons
- A lot of wires
Connect the buzzer to a specific pin, and buttons on all other free pins. Since they're in pullup mode in the code, you don't have to place resistors in order to make them work. If you feel placing a current limiting resistor, it's up to you !
Example piano using a buzzer connected to pin 13 and one button connected to pin 5, on an Arduino Uno.
Add as many buttons as you can in order to make a full piano ! Here is an example I shot with my smartphone :
My personal Arduipiano with 10 buttons and a little LED that lights each time the buzzer is triggered.
Register your piano's keys and the buzzer's pin in the src/keys.h file. Even if you don't know much about programming, you don't have to worry : all is documented in this file. If you have troubles, feel free to open an issue !
After that step, upload the main.ino sketch into your board. If you did all the steps correctly, your piano should start working !
- Maintainer: Théo Vidal
MIT License
Copyright (c) 2020 Théo Vidal
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