QN8035 is a single-chip stereo FM radio receiver IC designed by the Quintic Corporation. This receiver supports the FM broadcast band ranging from 60MHz to 108MHz.

This repository contains a Raspberry Pi base QN8035 receiver to receive FM stereo broadcasts from 88MHz to 108MHz.

The hardware part of this receiver consists of a QN8035 tuner and a 32.768kHz oscillator circuit. These circuits are designed to work with a 3.3V power supply.

The prototype version of this tuner designs with a single-sided PCB. All the schematics and KiCAD PCB design files are available in this repository. The Gerber files of this PCB are available to download at the release section of this repository.

The QN8035 uses the I2C bus to communicate with the host system. The tuner application develops with this system utilizes I2C channel 1 (Raspberry Pi header Pin 3 and 5) to communicate with the QN8035. The control software presents in this repository is designed to work with the Raspberry Pi operating system and is set to run on May 7th, 2021 (Buster), or the latest releases.

The tuner application provided in this release supports the following features:

• Manual and automatic station scanning.
• Decode RDS PS (program service) data.
• Volume control.
• Display RSSI and SNR readings receive from the tuner.

The control application of this receiver develops using GCC and WiringPi library.

The complete construction and configuration steps of this tuner show in the video above.

This is an open-source hardware project. All schematics, design files, and PCB layouts have been released under the Creative Commons Attribution 4.0 International license. The control software is released under the terms of the MIT License.