etherbulb: the bulb that shows you the RF spectrum

· Adafruit Industries Blog · Oct. 19, 2026, 9:19 p.m.
ESP32-C3 Espressif Radio receiver Open Source Firmware Development ESP32-C3 Radio Frequency
Summary
The blog post introduces Etherbulb, an open source firmware for the ESP32-C3 smart bulb that transforms it into a device that listens to and visualizes the RF spectrum, classifying signals like Bluetooth and WiFi by color.
Read full post on blog.adafruit.com →
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