DIY LCD Digital FM Radio Kit with RDA5807 Module 87-108MHz, Flashing LED Lights and LCD Display – Soldering Kit for Electronics Enthusiasts and Beginners Features: - - Made of high-quality materials, durable and reliable - Operates on DC 5V voltage, compatible with USB power sources such as computers, power banks, and mobile chargers - Features digital channel tuning and precise volume control for easy station search and volume adjustment - Equipped with 10 multicolor LED lights that flash rhythmically with the audio output, adding visual appeal during playback - Includes a high-definition LCD screen for real-time frequency display; frequency and volume can be adjusted using the control buttons after assembly - Designed as an educational electronics soldering kit, ideal for learning basic soldering techniques while building a functional FM radio - Main control chip uses STC89C52 microcontroller with RDA5807 FM receiver; communication between components is achieved via I2C bus using software-simulated timing - Supports automatic station search function with reception range from 87 MHz to 108 MHz; frequency data is displayed on a 1602 LCD screen - Audio output is amplified by LM386 power amplifier chip, delivering clear sound with strong noise resistance and improved audio clarity - Built-in LED level indicator with 10 segments using seven-color diffused LEDs; lights illuminate outward from center based on volume level, with dynamic color changes for visual effect Specifications: - Name: FM Radio Kit - Model Options: Kit, Kit + Case - Power Supply: DC 5V (inner positive, outer negative) - FM Frequency Range: 87 MHz – 108 MHz - Operating Voltage: 4.5V – 5.5V DC LED Indicator Description: - 10-level LED spectrum display with diffused multicolor slow-flash LEDs - Lights activate progressively from center to sides according to volume level - Color shifts automatically during operation, creating a soft, dreamy lighting effect Operation Instructions: - Left button: Power on/off - Right button: Toggle spectrum indicator on/off - "S+" / "S-" buttons: Volume up/down - "P+" / "P-" buttons: Tune frequency up/down to select FM stations Note: The enclosure is not pre-assembled; customers must assemble the kit themselves. Package Includes: 1 x FM Radio Kit or 1 x FM Radio Kit + 1 x Case Notes: - Due to differences in screen displays and lighting conditions, actual product color may vary slightly from images shown - Please allow slight variations in measurements due to manual measurement methods