This is a breakout board from SparkFun for the Silicon Laboratories Si4703 FM tuner chip. Beyond being a simple FM radio, the Si4703 is also capable of detecting and processing both Radio Data Service (RDS) and Radio Broadcast Data Service (RBDS) information. The Si4703 even does the job of filtering and carrier detection and captures data such as the station ID and song name. The breakout board has 0.1"-spaced pins that work well with standard solderless breadboards and 0.1" perfboards.
The board breaks out all major pins and makes it easy to incorporate this great chip into your next radio project. Also, by plugging headphones into the 3.5mm audio jack, you effectively use the cable in your headphones as an antenna! Therefore, this board does not require an external antenna if used with headphones or a 3.5mm audio cable longer than 3 feet.
Note: SparkFun calls this product the “Evaluation Board for Si4703 FM Tuner”, SKU: WRL-10663.
Documentation and Resources:
- FM Radio with Arduino, LCD and Si4703
A couple of years ago, I found a modern jukebox (with iPod connectivity, AM/FM radio, CD player and LEDs) dumped in my street. The body was in decent condition but all of the electronics were ruined apart from the LEDs. I decided to take it and replace all of the electronics with my own and add a few cool features. One of the parts of the larger project was to make an FM radio with an LCD and pushbuttons to control the frequency...
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