markondej/fm_transmitter
Raspberry Pi as FM transmitter observed · 2026-08-28
Health v2 · maintenance only
62/100
- Activity 87
- Release rhythm 8
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4174
- days_rel: n/a
- days_push: 82
- n_releases_24m: 0
Adoption not part of the score
1486 stars · 305 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A C++ command-line tool that turns a Raspberry Pi (up to Pi 4) into an FM radio transmitter by modulating the GPIO clock output. It broadcasts WAV audio files on a chosen FM frequency using a wire antenna attached to GPIO4.
Use cases
- broadcast audio over FM from a raspberry pi
- turn raspberry pi into fm transmitter
- play wav files over fm radio
- stream system audio to an fm receiver
- build a small fm radio station with a pi
- transmit audio wirelessly without bluetooth hardware
When to choose
- you have a Raspberry Pi 1-4 and want cheap FM broadcasting with just an antenna wire
- you want a lightweight C++ tool with no external radio hardware
- you need to pipe arbitrary system audio (e.g. via ALSA loopback) to an FM receiver
When to avoid
- you use a Raspberry Pi 5, which has a different peripheral chip
- you need licensed, legal, or high-power FM broadcasting
- you need stereo, high-fidelity, or long-range transmission
- you need a cross-platform solution beyond bare-metal Linux on the Pi
Facets
cli-tool · maturity active
audio-processing embedded developer-tools embedded-systems hardware embedded cli iot raspberry-pi fm-radio fm-transmitter gpio dma wav-playback broadcasting hardware-hacking audio automation linux
1 source
- readme: https://github.com/markondej/fm_transmitter · fetched 2026-08-28 · 61ed4838a728
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| markondej/fm_transmitter | main | 62 |
For agents
markdown · JSON · MCP: product_card(name="markondej/fm_transmitter")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem