# flipperdevices/flipperzero-firmware

Flipper Zero firmware source code

Repository: https://github.com/flipperdevices/flipperzero-firmware
Canonical: https://ross.abutalabs.com/products/flipperzero-firmware
Homepage: https://flipper.net
Language: C
License: GPL-3.0
License Family: copyleft
Topics: nfc, rfid, subghz, stm32, armv7m, ble, onewire, flipper, flipperzero, firmware, infrared
Last push: 2026-08-17T12:49:01+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 48, longevity 100
- inputs: {"age_days": 2224, "days_push": 16, "days_rel": 271, "gap_med": 73, "n_releases_24m": 6}
- flags: no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 16515, forks 3444 (observed 2026-08-28T04:11:16.630021+00:00)

## What it is
The official open-source firmware for the Flipper Zero, a portable multi-tool device for interacting with access control systems. It implements NFC, RFID, Sub-GHz, infrared, BLE, and one-wire protocols on an STM32 microcontroller.

## Use cases
- read and emulate NFC and RFID access cards
- capture and replay Sub-GHz radio signals
- send infrared remote control commands
- flash custom firmware onto a Flipper Zero device
- develop apps for the Flipper Zero platform

## When to choose
- you own a Flipper Zero and want the official firmware or latest features
- you want to build custom applications for the Flipper Zero
- you are researching access control system protocols

## When to avoid
- you need firmware for other hardware platforms
- you want a turnkey penetration-testing toolkit without the device

## Facets
- artifact type: application
- maturity: active
- function: embedded, security, nlp
- domain: hardware, security, embedded-systems
- platform: embedded, c
- tags: flipper-zero, firmware, nfc, rfid, subghz, infrared, ble, stm32, hardware-hacking

## Member repositories
- flipperdevices/flipperzero-firmware (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:16.630021+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:04:53.433573+00:00, confidence not recorded.
  - homepage: https://flipper.net (fetched 2026-08-29T08:02:14.045726+00:00, sha 7f3e7c2dded0)
  - site_page: https://docs.flipper.net/ (fetched 2026-08-29T08:02:14.048798+00:00, sha d3e7db95f8cf)
- Data as of 2026-08-30T08:39:29.467469+00:00.