merbanan/rtl_433

Health v2 · maintenance only

Adoption not part of the score

7682 stars · 1572 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

rtl_433 is a generic data receiver written in C that decodes radio transmissions from devices on ISM bands such as 433.92 MHz, 868 MHz, 315 MHz, 345 MHz, and 915 MHz. It works with RTL-SDR and SoapySDR hardware, runs on low-resource embedded systems, and outputs decoded sensor data for further processing.

Use cases

• decode weather station sensor data from 433 mhz radio signals
• read data from wireless doorbells and motion sensors with an rtl-sdr dongle
• capture tire pressure monitoring system transmissions
• log rf sensor readings to influxdb or mqtt for home automation
• reverse engineer unknown ism band device protocols
• run a low-power sensor receiver on a raspberry pi

When to choose

• you have an RTL-SDR or SoapySDR-compatible receiver and want to decode ISM band sensor transmissions
• you need broad device protocol support with active community maintenance
• you want a lightweight C tool that runs on embedded or low-resource hardware
• you need decoded output in JSON or other formats for integration with home automation systems

When to avoid

• you need to transmit RF signals rather than receive and decode them
• you work with cellular, WiFi, or other non-ISM frequencies
• you need a graphical interface rather than a command-line tool
• your device protocol is unsupported and you cannot contribute a decoder

Facets

cli-tool · maturity active

parser developer-tools hardware iot embedded-systems windows bsd cli embedded rtl-sdr sdr rf-decoding 433mhz sensors ism-band soapy-sdr home-automation signal-processing automation linux macos docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="merbanan/rtl_433")