Les

FM-1 firmware · v0.1

kidboy-firmware

A toddler toy where every key plays a nursery song, speaks a letter or number, or plays a piano note, and nothing can break.

Made by
Will McCambley
Released
October 18, 2026
Install
On GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What kidboy-firmware does

  • Turn the PRESETS wheel to move between four cards: SONGS, LETTERS, NUMBERS and PIANO.
  • SELECT picks one of seventeen sounds, including piano, music box, marimba, organ, flute, robot, choir, kalimba, strings and pads.
  • The twelve panel buttons are drums on every card, with kick, snare, hats, clap, crash, toms, congas, claves and cowbell.
  • Each card has its own kit, so the same buttons sound different on SONGS, LETTERS, NUMBERS and PIANO.
  • K1 sets song speed from 50 % to 150 % and the pace of the counting dots.
  • MASTER sets overall volume, covering notes, speech and drums, and OCT\u2212 or OCT+ stops everything at once.
  • Kidboy saves the card, sound and speed after a short quiet spell and wakes on the saved card.
  • A USB computer sees KIDBOY FM-1, sends notes that play the current sound, and receives the notes you play.

Its modes

SONGS
Each of the 27 keys plays a nursery song, with the title on screen and Todo Boy bobbing along.
LETTERS
Keys show a giant letter A to Z, say its name and play a note, with the ABC song on the rightmost key.
NUMBERS
A key says its number and lights that many dots one by one, each dot with a note.
PIANO
Every key plays its real pitch across two octaves and shows the note name.

What Les checked

kidboy-firmware v0.1Scanned 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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