Retro Waves: The TEA5767 FM Radio
Relive the classic era of radio with a modern twist. The TEA5767 FM Radio project allows you to build a fully functional digital tuner that can pick up local FM stations with crystal clarity.

How It Works
The TEA5767 is a tiny, powerful silicon tuner. Instead of turning a physical dial to adjust a variable capacitor, the Arduino sends a frequency command via the I2C protocol.
- The Tune: You use buttons or a potentiometer to select a frequency (e.g., 98.5 MHz).
- The Command: The Arduino calculates the PLL (Phase-Locked Loop) data and sends it to the TEA5767.
- The Output: The module outputs a stereo audio signal, which you can plug into an amplifier or headphones.
Components List
- Arduino Uno/Nano: The tuner's brain.
- TEA5767 FM Radio Module: The receiver hardware.
- PAM8403 Amplifier (Optional): If you want to drive speakers directly.
- Potentiometer: For smooth volume and tuning control.
- 3.5mm Audio Jack.
Enhancing the Setup
Most makers add a 16x2 LCD to show the current frequency and station signal strength. It's a great project for learning about radio frequency (RF) basics, antenna design, and the digital control of analog signals.