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# KIISU Development Board

Multi-purpose development board compatible with Flipper Zero

## Sitemaps

- [XML Sitemap](https://kiisu.io/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [KIISU V4BR AUX MCU Update Guide](https://kiisu.io/kiisu-v4br-aux-mcu-update-guide/) - If your KIISU V4B/V4BR is acting slow. Chances are you haven't updated your AUX MCU. To do that easily using only your KIISU and a USB-C cable for power.
- [Getting Started with V4B](https://kiisu.io/getting-started-with-v4b/) - Warnings This is not a final market product, this is a development board intended for lab use. Treat it as electronics work, it contains small parts, exposed pads, and may require soldering. Use only LIR2032 rechargeable coin cells. Do NOT use CR2032 or other disposable coin cells. Radio transmissions may be regulated. Verify local laws
- [Community Contest: KIISU Lab/IoT Projects](https://kiisu.io/community-contest-kiisu-lab-iot-projects/) - Yes yes we know, KIISU can run Flipper Firmware(s) and apps. But is that all KIISU can do? We don’t think so. Matter of fact, KIISU is more than a one trick pony! @everyone is welcome to participate! Those that already have a KIISU have a hardware advantage, yet those that haven’t received theirs yet
- [Big News for Our US Community!](https://kiisu.io/big-news-for-our-us-community/) - We’re excited to announce that Rabbit-Labs is now our exclusive official retailer in the USA & North America With recent challenges around tariffs and carriers restricting shipments, we wanted to ensure our US customers still have easy access to KIISU V4B as well as our future products! That’s why we’ve partnered with Rabbit-Labs to handle
- [The Tale of KIISU: Slim Friend of Flipper Zero](https://kiisu.io/the-tale-of-kiisu-slim-friend-of-flipper-zero/) - The Tale of KIISU: Slim Friend of Flipper Zero It all started with a forgotten key. One quiet day, standing in front of a locked courtyard gate, the idea returned—something that had been on the mind for a while. What if there were a Flipper Zero-like device, but small enough to carry everywhere? Something so

## Pages

- [KIISU - Flipper Zero Alternative](https://kiisu.io/) - Compact Flipper Zero alternative development board with NFC, RFID, iButton, IR, Bluetooth, and GPIO. Ideal for IoT, access control, and prototyping.
- [KIISU SMOL](https://kiisu.io/kiisu-smol/) - ALL NEW KIISU SMOL Modular & Small like never before! Buy Now! Learn More How so SMOL Yet so Powerful? The KIISU SMOL is a modular and more compact version of the Kiisu V4 development board. Any Flipper Zero firmware can be made compatible with KIISU SMOL by making few simple adjustments. Compact, powerful, and
- [KIISU V4BR](https://kiisu.io/kiisu-v4br/) - Compact, Flipper Zero-compatible development board with NFC, RFID, iButton, IR, Bluetooth, and GPIO. Ideal for IoT, access control, and prototyping.
- [News](https://kiisu.io/news/) - Community Contest: KIISU Lab/IoT Projects 30/08/2025 | Edit Yes yes we know, KIISU can run Flipper Firmware(s) and apps. But is that all KII … Read More Big News for Our US Community! 27/08/2025 | Edit We’re excited to announce that Rabbit-Labs is now our exclusive official retaile … Read More The Tale of KIISU:
- [Documentation](https://kiisu.io/docs/)
- [KIISU Brand Resources](https://kiisu.io/kiisu-brand-resources/) - KIISU Brand Resources Creators and retail partners can use our brand resources for advertising and marketing purposes. KIISU Logo Variations .svg files .png files .pdf files Files include: Logo (horizontal, vertical, square, text, icon).
- [Shop](https://kiisu.io/shop/)
- [My Account](https://kiisu.io/my-account/)
- [Checkout](https://kiisu.io/checkout/)
- [Basket](https://kiisu.io/basket/)
- [Return Policy](https://kiisu.io/return-policy/)
- [Privacy Policy](https://kiisu.io/privacy-policy/) - Privacy Policy We at KIISU IO are committed to protecting the privacy and security of your personal data that we process or control.This Privacy Policy gives you an overview of how we collect and use information when you use any of the services located on our website at www.kiisu.io (the “Website”) or if you use
- [Cookie Policy (EU)](https://kiisu.io/cookie-policy-eu/) - Cookie Policy (EU) WHAT ARE COOKIESAs is common practice with almost all professional websites, this site uses cookies, which are tiny files that are downloaded to your computer or other device, to improve your experience when you visit our website or use our services. Some cookies are essential for the functionality of our website, while
- [Terms & Conditions](https://kiisu.io/terms-conditions/) - Service Agreement OVERVIEWThis website is operated by RainWalker store (RainWalker OÜ, registry code 16704677, VAT EE102753200, Pärnu mnt. 30-1, 10141 Tallinn, Estonia). Throughout the site, the terms “we”, “us” and “our” refer to RainWalker OÜ. RainWalker store offers this website, including all information, tools and Services available from this site to you, the user, conditioned upon
- [Contact](https://kiisu.io/contact/) - RainWalker OÜ Reg. nr. 16704677 VAT EE102753200 +372-5718-1880 mail@rainwalker.ee Pärnu mnt. 30, Tallinn, Eesti Your name Your email Subject Your message (optional)

## My Templates

- [header](https://kiisu.io/?elementor_library=header) - KIISU Development Board Multi-purpose development board compatible with Flipper Zero KIISU V4B Store Github News Docs Contact KIISU V4B Store Github News Docs Contact
- [footer](https://kiisu.io/?elementor_library=footer) - KIISU Development Board Multi-purpose development board compatible with Flipper Zero RainWalker OÜReg. nr. 16704677VAT: EE102753200Email: mail@kiisu.ioTel: +372-5718-1880Aadress: Pärnu mnt. 30, Tallinn, Estonia About KIISU KIISU V4B Store Github News Docs Contact Legal Privacy Policy Cookie Policy (EU) Terms & Conditions Follow us on © 2025 KIISU Development Board by Rainwalker OÜ. Tallinn, Estonia. All rights
- [Default Kit](https://kiisu.io/?elementor_library=default-kit)
- [Header RU](https://kiisu.io/?elementor_library=header-ru) - FAB20 Coworking Hackerspace Coworking & Hackerspace in Tallinn About us About Equipment About Services FAQs News Contact English Eesti English Русский There are no menu items in this menu.
- [Header EN](https://kiisu.io/?elementor_library=header-en) - FAB20 Coworking Hackerspace Coworking & Hackerspace in Tallinn About us About Equipment About Services FAQs News Contact English Eesti English Русский There are no menu items in this menu.
- [Footer RU](https://kiisu.io/?elementor_library=footer-ru) - FAB20 Coworking Hackerspace Coworking & Hackerspace in Tallinn RainWalker OÜРег. нр. 16704677VAT: EE102753200Почта: mail@rainwalker.eeТел: +372-5718-1880Адрес: Pärnu mnt. 30, Tallinn, Эстония О нас Наше оборудование О услугах ЧЗВ Новости Контакт Русский Eesti English Русский There are no menu items in this menu. © 2025 FAB20 Coworking Hackerspace. All rights reserved.
- [Footer ENG](https://kiisu.io/?elementor_library=footer-eng) - FAB20 Coworking Hackerspace Coworking & Hackerspace in Tallinn RainWalker OÜReg. nr. 16704677VAT: EE102753200Email: mail@rainwalker.eeTel: +372-5718-1880Address: Pärnu mnt. 30, Tallinn, Eestonia О нас Наше оборудование О услугах ЧЗВ Новости Контакт Русский Eesti English Русский There are no menu items in this menu. © 2025 FAB20 Coworking Hackerspace. All rights reserved.
- [Endorsement Program](https://kiisu.io/?elementor_library=endorsement-program) - Endorsement Program Turn your passion project into a real product Are you an ambitious engineer or entrepreneur working on a promising DIY idea? If your project has potential, we’ll provide: Free access to our hackerspace and tools Expert mentoring Possible funding or startup support Apply for Endorsement Program Tell us about your project and what
- [Service Agreement](https://kiisu.io/?elementor_library=service-agreement) - Service Agreement Version 1.0 from 11/19/2024 PRELIMINARY This agreement is concluded between the Operator (RainWalker OÜ, 16704677) and the Client who signed this agreement. The date of signing the contract is the date of conclusion of the contract. 1.Definitions1.1.Fab20, Space, Coworking is a room managed by the Operator, located at Pärnu mnt 30, Estonia, Tallinn, intended for
- [Equipment](https://kiisu.io/?elementor_library=equipment) - Equipment Workspace Accessible 24/7 Hot or dedicated desk Motorized tables and comfortable chairs Additional monitor (on request) Access 24/7 Wi-Fi up to 500 Mbsec Free and tasty tea and coffee 3D Printers & Scanners Accessible 24/7 Qidi Tech X-Smart 3 3D Printer (lisainfo) Anycubic Kobra 3 Combo (with multi-material printing) (lisainfo) Anycubic Kobra 2 Max
- [Services](https://kiisu.io/?elementor_library=services) - Services Services Dedicated desk rent Server or custom hardware hosting Additional displays, mice and keyboards Events and meetups in Estonian, English and Russian Group or private training and education Hardware startups mentoring
- [Privacy Policy](https://kiisu.io/?elementor_library=privacy-policy) - Privacy Policy We at Fab20 are committed to protecting the privacy and security of your personal data that we process or control.This Privacy Policy gives you an overview of how we collect and use information when you use any of the services located on our website at www.fab20.ee (the “Website”) or if you use any
- [About](https://kiisu.io/?elementor_library=about) - About FAB20 What’s FAB20? It’s a workspace designed for IoT engineers, makers, and creators. Here you’ll find 3D printers, laser cutters, professional soldering stations, precision measuring tools, and more—all available 24/7. High-speed internet, kitchen with quality coffee, external monitors, and height-adjustable desks! Why FAB20? 🕒 24/7 Access — Work on your schedule 🤖 Automated Access
- [Cookie Policy](https://kiisu.io/?elementor_library=cookie-policy) - Cookie Policy (EU) WHAT ARE COOKIESAs is common practice with almost all professional websites, this site uses cookies, which are tiny files that are downloaded to your computer or other device, to improve your experience when you visit our website or use our services. Some cookies are essential for the functionality of our website, while
- [Contact](https://kiisu.io/?elementor_library=contact) - Contact Us RainWalker OÜ Reg. nr. 16704677 VAT EE102753200 +372-5718-1880 mail@rainwalker.ee Pärnu mnt. 30, Tallinn, Eesti Your name Your email Subject Your message (optional)
- [Rules](https://kiisu.io/?elementor_library=rules) - Kodukord Fab20 coworking and hackspace situated in Estonia, Tallinn, Pärnu mnt 30.GENERAL1. Please use the Space and its services taking into consideration the well-being of other Space Members.2. Pets are not allowed in Space.3. No illegal internet usage.4. Unless your membership allows it, you may not: use the Space as your business address or registered
- [KKK](https://kiisu.io/?elementor_library=kkk) - FAQ’s Kuidas jõuda FAB20’ni ühistranspordiga? Tramm 1, 2, 3, 4, 5 – “Kosmos” või “Vabaduse väljak” peatus.Buss 5, 14, 18, 18A, 20, 20A, 36, 73 – “Kosmos” peatusBuss 2, 3, 5, 9, 11, 14, 16, 18, 18A, 20, 20A, 21, 21B, 22, 23, 24, 35, 36, 40, 41, 41B, 42, 46, 67, 73, 91, 92,
- [Homepage](https://kiisu.io/?elementor_library=homepage) - Coworking / Hackerspace Unlock your productivity and creativity! A unique blend of coworking and hackerspace with top-tier tools and equipment—right in the heart of Tallinn. Enter Coworking Endorsement Program What’s FAB20? It’s a workspace designed for IoT engineers, makers, and creators. Here you’ll find 3D printers, laser cutters, professional soldering stations, precision measuring tools, and

## Products

- [KIISU Development Board V4A](https://kiisu.io/product/kiisu-development-board-v4a/) - Multipurpose development board in size of credit card with Flipper Zero compatibility.

## Categories

- [News](https://kiisu.io/category/news/)
- [Docs](https://kiisu.io/category/docs/)
- [V4B](https://kiisu.io/category/v4b/)

## Brands

- [KIISU](https://kiisu.io/brand/kiisu/)

## Product categories

- [Development Board](https://kiisu.io/product-category/development-board/)