TouchMP3 is a DIY MP3 player I’ve been building from scratch. It’s powered by an ESP32-S3 and uses a touchscreen for control instead of buttons. The goal is to make something that feels like a modern device, but is completely custom-built and designed at the PCB level.

I wanted this project to be more than just “play music.” With the parts I’ve chosen, TouchMP3 can handle audio playback, recording, and charging, all while staying compact and portable.

Check in the images folder for all the images

• ESP32-S3 – The brain of the MP3 player. Handles audio decoding, Bluetooth (future feature), and touchscreen input.
• Touchscreen + Touch Controller – No buttons, just direct touch control for menus and playback.
• ES8388 Audio Codec – Provides high-quality stereo audio output and integrates well with the ESP32 for I²S.
• ICS-43434 Digital Microphone – Allows basic voice recording or other mic-based features.
• Headphone Jack – Standard 3.5mm jack for wired headphones.
• USB-C Port – For charging and possibly data transfer later on.
• TP4056 Charger IC – Manages charging the lithium battery safely.
• LDO (Low Dropout Regulator) – Keeps the ESP32 and audio components powered at a stable voltage.

Right now, there isn’t any software to install yet. Once I start working on the firmware, I’ll add step-by-step instructions here for flashing the ESP32-S3 and loading music onto the device.