https://github.com/sini6a/internet-radio-speaker

An open-source ESP32 Internet Radio Player with simple programming, USB charging, and on-the-go capability using a single-cell Li-ion battery.
https://github.com/sini6a/internet-radio-speaker

esp32 hardware-designs internet-of-things internet-radio-player open-hardware schematics

Last synced: 5 months ago
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An open-source ESP32 Internet Radio Player with simple programming, USB charging, and on-the-go capability using a single-cell Li-ion battery.

• Host: GitHub
• URL: https://github.com/sini6a/internet-radio-speaker
• Owner: sini6a
• License: gpl-3.0
• Created: 2024-01-07T14:08:31.000Z (over 2 years ago)
• Default Branch: dev
• Last Pushed: 2025-05-07T20:46:44.000Z (about 1 year ago)
• Last Synced: 2025-06-23T07:09:50.023Z (about 1 year ago)
• Topics: esp32, hardware-designs, internet-of-things, internet-radio-player, open-hardware, schematics
• Language: C++
• Homepage:
• Size: 13.8 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Open Source Internet Radio Player

![Case #1](Pictures/IMG_20250507_222926.jpg)

![PCB #1](Pictures/IMG_20250507_222842.jpg)  

## Hardware Specifications

- **Microcontroller:** ESP32-C3

- **Power Supply:** 5V/0.5A (USB Type-C, ~2.5W)

- **Flash Memory:** 4Mbit QSPI (on-chip)

- **Antenna:** Integrated PCB antenna

- **Controls:** Power switch and analog volume potentiometer

- **Audio Output:** Dual speaker output (3.2W max per channel)

- **Indicators:** 3x LEDs (Wi-Fi, Playback, Power)

## Description

This project is a compact, ESP32-C3-based Internet Radio Player designed for ease of use and straightforward integration. The device supports Wi-Fi streaming of MP3 audio and includes basic control via a single potentiometer and button. Audio output is handled via I2S to a stereo amplifier. 

The hardware includes onboard status LEDs and is powered via USB Type-C. It's suitable for low-power audio streaming applications, DIY audio projects, or integration into custom enclosures.

## Features

- 2.4 GHz Wi-Fi support using the built-in PCB antenna

- Minimal controls for simple user interaction

- USB Type-C programming and power interface

- Stereo speaker output via digital I2S

- LED indicators for connection and playback status

## Firmware and Usage

The firmware is located in the `Firmware/` directory and is built using the Arduino framework. Upload it via the Arduino IDE or other compatible tools. 

### Initial Setup

1. Flash the firmware to the ESP32-C3.

2. On first boot, the device creates a Wi-Fi Access Point.

3. Connect to the AP to configure the Wi-Fi credentials and stream URL.

4. After setup, the device reboots into streaming mode.

## Status

- Current hardware revision is stable and has been tested.

- The device is functional and ready for personal assembly or integration.

- Further development (BLE config, web UI, OTA, etc.) is planned or ongoing.

## Contributions

Pull requests, issue reports, and improvements are welcome. Make sure to open issue before to discuss changes.