# Etherbulb: ESP32 Smart Bulb with RF Spectrum Display

Etherbulb monitors RF signals and displays them as colors on an ESP32-C3 smart bulb. It captures data from 2.13 to 2.73 GHz, covering Wi-Fi, Bluetooth, and LTE/5G bands. Signals are mapped to visible colors with adjustable sensitivity and presets.

https://www.rtl-sdr.com/etherbulb-an-esp32-c3-smart-bulb-that-changes-color-based-on-nearby-rf-signals/

Image: https://www.rtl-sdr.com/wp-content/uploads/2026/10/etherbulb-1024x487.png

#esp32 #rf #spectrum #smartbulb

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Canonical URL: https://qwibbit.com/q12299

Created: 2026-10-19T19:22:15.679407+00:00

Last edited: 2026-10-19T19:22:15.679407+00:00

Board: 3

Origin: Syndicated

Original source: https://www.rtl-sdr.com/etherbulb-an-esp32-c3-smart-bulb-that-changes-color-based-on-nearby-rf-signals/