One Card. Endless Possibilities.
Multipurpose, Flipper Zero–compatible development boards in credit-card size — for makers, hackers, and security researchers.
Modular & Small like never before!
Our newest board — KIISU SMOL — is a modular networking development board with pluggable add-ons for Wi-Fi, GPS, LoRa (Meshtastic), NFC and RFID. Same Flipper Zero ecosystem, smaller form-factor, fully modular.
👉 Back the campaign on Indiegogo · Product page · Hardware files · Firmware
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The original, all-in-one credit-card sized dev board.
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KIISU SMOL 🚀 on IndiegogoModular networking dev board — pick the radios you need.
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Friends of the project building useful things on top of KIISU:
- Twoelw — Kiisu Companion Bridge, Kiisu Sensor Hub, Kiisu Manager
- 3D-printable cases on Printables · also on MakerWorld
| Region | Reseller |
|---|---|
| 🌍 Worldwide | RainWalker Store (direct from us) |
| 🇺🇸 USA | Rabbit-Labs |
| 🇪🇺 EU | LAB401 |
| 🇮🇳 India | Hacktronix |
| 🚀 Indiegogo (SMOL) | indiegogo.com/projects/rainwalker/kiisu-smol |
- 💬 Discord — https://discord.gg/kiisu
- 📰 Reddit — r/KIISU_IO
✈️ Telegram — https://t.me/kiisu_io- 📸 Instagram — @kiisu.io
- 📘 Facebook — page
| Repo | What it is |
|---|---|
kiisu-smol |
KIISU SMOL hardware design files |
kiisu-smol-firmware |
KIISU SMOL firmware (Flipper Zero–compatible) |
kiisu4 |
KIISU V4 documentation, schematics, 3D models |
kiisu-firmware |
KIISU V4 firmware (fork of Flipper OFW) |
kiisu4-companion-fw |
KIISU V4 Aux MCU firmware (STM32G4) |
qKiisu |
Desktop firmware updater (qFlipper fork) — work in progress |
Made with ♥ by RainWalker OÜ · Tallinn, Estonia · mail@kiisu.io