CompletedPCB electronic musical instrument
PRO
PCB electronic musical instrument
License
：GPL 3.0
Description
An instrument that imitates a stylophone, only mimicking the keyboard and the way it operates, without the essence of electronic sound.
It's very simple, entertaining,
Hezhou ESP32C3, AD9833, LM4781, PCF8574T, horn, potentiometer.
The principle is very simple, I2C scans the three PCF8574T of pin input states, detects a low level and controls the AD9833 output waveform corresponding to the frequency.
A very simple but very interesting project that uses SPI, I2C, and IO inputs at the same time, making it perfect for getting started with arduinio.
The code is then attached (Music BOX.zip）
Video Address:
https://www.bilibili.com/video/BV1Z84y1n7q9/?vd_source=922712da2bcef8666165702c88f19f89
Designed by 爆改车间主任 (from OSHWHub)
Design Drawing
The preview image was not generated, please save it again in the editor.Intellectual Property Statement & Reproduction Instructions
This is an open-source hardware project. All intellectual property rights belong to the creator. The project is shared on the platform for learning, communication, and research only; any commercial use is prohibited. If your intellectual property rights are infringed on EasyEDA, please notify us by submitting relevant materials in accordance with the Rules for Complaints and Appeals of IPR Infringement.
Users must independently verify the circuit design and suitability when replicating this project. All risks and consequences are borne by the user, and the platform assumes no liability.
Empty
Comment