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FM radio module stereo RRD-102 ver.2.0 based on the RDA5807M chip is used to create projects where you need an FM radio receiver. The RDA5807M can receive RDS/RBDS data, but it needs a good antenna. The range of received frequencies is 50 MHz - 115 MHz, which means that the module can receive stations on half-forgotten VHF waves (ultra-short waves). The module is controlled either from the Arduino controller, or from another microprocessor control device via the IIC interface.
The frequency synthesizer is fully integrated into the microcircuit
Management interface: I2C
Automatic gain control
Digital Adaptive Noise Reduction
Support for audio output in both mono and stereo
Receive signal strength indicator (RSSI) and SNR
Sound control and mute function
Bass amplifier for headphones
Load at the output of the audio channel 32 Ohm
Built-in LDO controller
Arduino connection diagram:
Depending on the program in the Arduino or the microcontroller, the pins for connecting SDA and SCL may differ.
Module blueprint:
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