A portable device for interacting with radio, access-control and digital signals — built for tinkering, learning and security research.
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Explained as if you've never touched one before
Think of the Flipper Zero as a tiny pocket "remote control for everything wireless." It can listen to and copy certain signals — like the chip in a hotel key card, a garage remote, or your TV's infrared.
It has a small screen and a playful dolphin mascot that "levels up" the more you use it. You explore menus, save signals, and play them back later.
For people comfortable with the basics of radio & protocols
The Flipper bundles several radios into one device: a sub-GHz transceiver (300–928 MHz) for remotes and sensors, a 125 kHz RFID reader, a 13.56 MHz NFC module, infrared, plus GPIO pins for hardware projects.
Each "app" decodes a protocol — for example reading a card's UID, capturing a remote's modulation, or emulating a saved tag. Fixed-code signals can be replayed; rolling-code ones can't simply be cloned.
For practitioners doing security research & red-team work
At its core sits an STM32WB55 (Cortex-M4 + M0+) coordinating a CC1101 for sub-GHz and an ST25R3916 NFC front-end. Custom firmwares unlock raw capture, extended frequency ranges, BadUSB, and protocol fuzzing via the GPIO/CLI.
Realistic engagements focus on weak access-control: 125 kHz EM4100/HID Prox cloning, MIFARE Classic key recovery, and analysis of fixed-code OOK remotes. Rolling-code (KeeLoq) and modern MIFARE DESFire resist trivial replay — document scope and rules of engagement.