FM Transmitter Remotely Controlled Via ESP32
Originally published on hackaday.com by Lewin Day on 18 October 2024
Ricardo Lima Caratti’s remote-controlled FM transmitter is a clever setup that brings easy management to the classic FM transmitter design. By integrating a QN8066 FM transceiver with an ESP32 microcontroller, he’s created a flexible system that allows users to adjust the transmitter’s settings through a web interface.
The QN8066 chip provides a frequency range of 60 MHz to 108 MHz, so it covers nearly all global FM radio bands. With the ESP32’s HTTP server capabilities, the transmitter’s frequency, transmission mode, and Radio Data Service (RDS) can be configured remotely. This eliminates the need to manually change settings on-site, making it ideal for use in inaccessible locations or field projects.
Ricardo’s setup even streams content in his demo, showcasing a seamless transition of settings adjustments from any device with a web browser. This approach could be highly useful for enthusiasts looking to manage remote audio broadcasts, or even for practical uses like event or emergency broadcasts in specific areas.
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