This project is sponsored by“Spark Program Phase II”!!
Project Author: chimchim4482
This is a beginner-friendly radio replica!
I made a full-band radio.
The main control MCU uses ESP32S3-N16R8, the control module uses SI4735, and the audio output uses TC8002D.
This project mainly constructs a full-band radio (including AM, FM, SSB) based on the core chip SI4735.
Press the manual tuning button briefly, rotate the encoder to manually adjust the received radio signal frequency in 0.1MHz increments.
Press and hold the lower left button on the main interface to display the extended interface.
The FM mode is 64MHz to 108MHz.
This project consists of two PCBs, namely the main control board and the expansion board.
The main control board includes all basic functions such as full-band radio signal reception, processing, playback, and control of functional keys.



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The shell consists of four parts: front panel, front shell, back shell, and back panel.
Front Panel: PET material, adhesive backing for easy attachment.
Back Panel: Fully transparent acrylic board.
Front and Back Shell: Resin material 3D printed, front shell spray painted, Pantone color code 1795C.
The shell can be customized at Jialichuang’s panel + 3D Monkey.
The software design is based on the Arduino IDE framework, and the core program logic is as follows:
This project is being made public for the first time and is my original project. The project has not won any awards in other competitions.
Open Source License:CERN Open Hardware License

The Spark Program is an activity hosted by the “Lichuang Open Source Hardware Platform” to promote hardware open source.
The Spark Program activities are divided into Free Track and Outsourcing Track.
Among them, the Free Track has no restrictions on themes, as long as you successfully register, we will provide the materials for your project! You can receive up to 10,000 yuan in material funding.
Successfully completing the project also gives you a chance to share 200,000 yuan in bonus at the end of the year!
The Outsourcing Track has fixed themes, with each theme only connecting to one person, and successful completion will guarantee a reward!
Similarly! After receiving the bonus upon completion, there is also a chance to share 100,000 yuan in bonus at the end of the year! It’s really appealing!!
The themes of the outsourcing track include: water quality monitoring boat, simple multimeter, projector, wireless omnidirectional microphone… it’s really not difficult! There is bound to be a theme that you excel at!
If you happen to have two skills… then quickly scan the QR code in the image above to register!
PS: Remember to carefully check the event rules before registering! The rules are simple, and you must follow them.
*This article is a reprint of user creation from the “Lichuang Open Source Hardware Platform”. If there is any infringement, please contact for deletion.
