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Introduction:
The main control chip is composed of STC89C52 chip + TDA5807 core device, which is connected through the I2C bus between the master and slave devices, and uses the software simulation bus timing method to drive the TDA5807 chip to work. The program realizes the automatic radio search function, and the frequency reception range is 87- 108MHZ, frequency band information is displayed in real time on LCD1602 LCD screen. The output audio signal is amplified by the power amplifier chip LM386 to drive the speaker to work.
The receiving sensitivity and sound quality are very good, and the anti-noise interference ability is strong, which effectively reduces the noise interference when listening to the radio. The sound becomes clearer under the action of the power amplifier chip.
Adding the level indicator makes listening to the radio a full enjoyment.
Assemble manual: Click here.
Features:
1. This module adopts DC 5V working voltage, it is convenient to get power and supports computer USB power supply and mobile charging treasure.
2. This radio uses digital tuning and volume control. It is more convenient to search for radio stations and adjust the volume.
3. Note: Some stocks have updated the PCB board and added 3 resistors, and other functions do not affect the use.
Specification:
DC power supply 5V, positive and negative, do not reverse.
Frequency modulation range: 87MHZ-108MHZ
Shell size: 9.5cm*6.4CM*5.0CM
Working voltage: 4.5V-5.5V DC
Package included:
1 x DIY Radio Electronic Kit
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