📻 Radio Arduino Uno TEA5767

An FM radio built using an Arduino Uno and the TEA5767 radio module.
It displays the current frequency on an I²C 16×2 LCD display, allows tuning via buttons, stores the last frequency in EEPROM, and outputs audio to speakers via an amplifier.

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📌 Overview

• Objective: Build a working FM radio using Arduino and TEA5767 receiver.
• Features:
  • Tuning up/down via two push buttons
  • Display current frequency on I²C LCD
  • Store & recall last frequency from EEPROM
  • Audio output via amplifier to speakers
  • On/off switch to activate/deactivate radio

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🛠 Hardware Requirements

Component	Quantity	Purpose
Arduino Uno (or compatible)	1	Main microcontroller
TEA5767 FM radio module	1	FM receiver
I²C 16×2 LCD display	1	To show current frequency
2 × Push Buttons	2	For tuning up/down
5 mm LED	1	Indicator (e.g. power or backlight)
Speaker(s) (8 Ω, ~3 W)	1 or 2	Audio output
Amplifier (e.g. TDA2822M)	1	Audio signal amplification
Jumper wires / connectors	—	Electrical connections
Breadboard / prototyping board	1	Mounting / wiring
SPST switch	1	Power on/off radio
Resistors (e.g. 12 Ω)	Several	For LED or other signal lines
9 V adapter or battery	1	Power supply
9 V battery (optional)	1	Alternate power source

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💻 Software / Libraries

• Arduino IDE (or other compatible environment)
• Required libraries:
  • Wire (for I²C)
  • LiquidCrystal_I2C
  • TEA5767N (or TEA5767) library :contentReference[oaicite:1]{index=1}
  • EEPROM (built-in)

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⚡ Circuit Diagram

Here is the wiring layout for the radio setup: