Flipper has taken a short break from launching wireless hacking tools by introducing the BUSY Bar open-source productivity multitool designed to help people eliminate distractions and be more focused at work.
The device features a customizable LED pixel display and a small monochrome OLED back display, synchronizes with work apps, mutes notifications, and supports the Matter protocol for integration with Home Assistant, Apple Home, Google Home, or other Matter-compatible platforms.
BUSY Bar specifications:
- Microcontroller – STMicroelectronics STM32U5
- CPU – Arm Cortex-M33 @ 160 MHz
- Memory – 2.5 MB SRAM
- Storage – 2 MB Flash
- Storage – 8 GB eMMC flash
- Main Display – 6.35-inch RGB LED matrix with 72×16 resolution, 60 Hz refresh rate, 800 nits, adaptive brightness
- Back Display – 1.54-in monochrome (16 gray scales) OLED with 160×80 resolution, adaptive brightness
- Audio – 0.8W speaker for sound alerts and notifications
- Wireless Connectivity via Silicon Labs SiWG917
- CPU – Arm Cortex-M4 @ 180 MHz
- Memory – 672 KB SRAM
- Storage – 8 MB Flash,
- Wireless
- 2.4 GHz Wi-Fi 6 (IEEE 802.11ax) with WPA3 authentication support
- Bluetooth Low Energy 5.4
- USB – 1x USB Type-C port for power and data
- Virtual LAN adapter
- HTTP API over USB Virtual LAN
- Misc
- 5-position mode selector
- Start/Pause button with Kailh Choc Switch V2
- Scroll wheel with push button
- Back button
- 2x RGB status lights
- Light Sensor for adaptive brightness control for the displays
- Built-in monitor mount
- Power Supply
- 5V charging via USB-C port
- 3,250 mAh 18650 Li-ion battery good for 2 weeks in standby, eight hours of active status
- Dimensions – 168.6 x 55.2 x 40.8mm
- Weight – 250 grams
To get started, you’ll need to download and install the BUSY Bar mobile for Android or iOS to pair the device over Bluetooth and configure WiFi. Alternatively, you can use the Desktop app for macOS or access the web interface via the USB virtual LAN connector. The download page also points to Python and TypeScript libraries for more advanced users and developers.
You can customize the (work/rest) Timer, Theme, and Smart Home modes from the app or web interface, or directly with the buttons on the unit. The BUSY mode enables muting notifications on your phone, and desktop notifications will soon be supported. Other features include a clock, auto ON CALL status, Google Calendar integration, the Draw tool to customize the display, and more. Check out the documentation for more details.
Flipper will sell the BUSY Bar for $179 to people joining the waiting list, and users who order after launch on July 14 may have to pay $249 instead. While the company has already sent samples to reviewers, reviews won’t be published before July 14.


Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
Support CNX Software! Donate via cryptocurrencies, become a Patron on Patreon, or purchase goods on Amazon or Aliexpress. We also use affiliate links in articles to earn commissions if you make a purchase after clicking on those links.








