Les

FM-1 firmware · v1.3

fm1-radio

A pocket internet radio that tunes stations worldwide from Radio Garden's map over WiFi, with punch-in effects and a small synth to play along.

Made by
Charles Vestal
Released
October 24, 2026
Install
On GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What fm1-radio does

  • Radio plays internet stations from around the world over 2.4 GHz WiFi, MP3 and AAC streams included.
  • KNOB 1 to KNOB 4 pick continent, country, place and station, and MASTER sets volume.
  • The 16 white keys are punch-in effects: filters, telephone, bitcrush, stutters, tape stop, reverse, chop, ring modulator, half speed, mute and lo-fi.
  • Hold several keys to stack effects, and tap FX in time with the music to set the stutter and chop tempo.
  • Press ARP for a 4-voice synth with wave, low-pass filter, attack and release on the knobs, plus octave buttons.
  • SAVE keeps up to 16 favorite stations in the FM-1's flash, and the synth settings are kept a few seconds after a change.
  • The FM-1 remembers the station and whether it was playing, and picks up there at the next start.
  • Over USB the FM-1 is a stereo sound card called RADIO FM-1, so you can record the radio, effects and synth.

Its modes

Home
Tune the radio with the four knobs and hold the white keys for punch-in effects.
WiFi page
Turn WiFi on, scan for networks around you, and type a password on the keys to join.
Browser
Step through continents, countries, places and stations with SELECT and SEL.
Favorites
Add the station playing, play a saved one with SEL, or delete it with REC.
The synth
Play the keys as a four-voice synth over the radio or on its own.

What Les checked

fm1-radio v1.3Scanned October 31, 2026

What we checked for

  • The file is exactly the one its author published
  • It's the same file we saw when this release first came out
  • It opens cleanly as an FM-1 firmware, nothing damaged
  • It doesn't show up on your computer as a keyboard, mouse or other input device
  • It doesn't show up as a USB drive or network adapter
  • Its text mentions no computer command tools, like PowerShell, Terminal or a download command

What we found

  • MIDI and audio, as expected

StatusScanned, nothing harmful found

Les scans every firmware here whose file is public, and shows what it checked and what it found. A scan lowers the risk; it can't rule it out. This firmware is made by its author, not by Les or M-VAVE. Back up first, and install at your own risk. How Les scans firmware

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