In recent years, dedicated internet radio players have seen a decline in popularity. The rise of smartphones and smart speakers has made these devices less essential. However, dedicated players offer a unique user experience with tactile controls and stylish designs. Those interested in an internet radio can create their own DIY model, a project recently demonstrated by Volos Projects.
Building Your Own Internet Radio: A Simple and Affordable Guide
Creating a dedicated internet radio isn’t as complicated as it seems. Volos Projects successfully built one using a single, affordable hardware platform. This project is centered around the $15 Waveshare ESP32-S3 1.54-inch LCD Display Development Board, which is tailored for audio applications.
Key Features of the Waveshare ESP32-S3 Board
- 240×240 color display
- ES8311 audio codec for high-quality digital-to-analog conversion
- NS4150B amplifier providing up to 3 watts output
These features contribute to high-quality audio output, making the device both loud and clear. Instead of crafting a custom enclosure, Volos Projects utilized the development board’s existing case. This case can accommodate a 1,000 mAh lithium battery, simplifying the assembly process while allowing for future enhancements, like upgrading the speaker or adding a power switch.
Functionality and User Experience
The design includes three physical buttons for station navigation and volume control, providing a nostalgic feel to users. The device features a low-power sleep mode, important for battery efficiency. Users can wake or suspend the system with a single button press.
Connectivity and Customization
The DIY internet radio connects to Wi-Fi, allowing it to stream live audio from publicly available sources. Users can modify the code to add or change stations; streams with a bitrate of 128 kbps are recommended for optimum audio quality. Additionally, an onboard SD card slot enables offline playback, turning the device into a portable MP3 player.
For enhanced sound output, the system supports external audio devices. Volos Projects demonstrated how to connect larger speakers and build a simple adapter using a 3.5 mm jack, employing a voltage divider to interface safely with headphones or external amplifiers.
This DIY internet radio project showcases how accessible it can be to create a personalized audio device. For a detailed guide and visuals, visit El-Balad for the project video.
