Loading High Boy

High Boy, the pocket pentesting device by High Code

A pocket tool for wireless and hardware exploration.

Get High BoyWatch the film

On Indiegogo · Choose your reward

High Boy in use, with close-ups of the infrared interface, Octobit and an RFID reader.

What is High Boy?

A handheld tool for testing wireless signals, remote controls and hardware.

Wireless
Wi-Fi, Bluetooth, Sub-GHz, LoRa, NFC and RFID.
Infrared
Read and replay remote-control signals.
Open firmware
Write your own apps and connect hardware through GPIO.
Get High Boy Watch the demo

Rewards and estimated delivery on Indiegogo.

High Boy on video.

Watch the official film, hands-on reviews and comparisons with Flipper Zero.

High Boy in the press.

Coverage from hardware and security publications.

ImageHackster.io

The Octopus-Packing Multi-Functional High Boy Aims to Beat the Flipper Zero

Gareth Halfacree ·

ImageNotebookcheck

High Boy hacking device reaches Kickstarter with retro gaming handheld vibes

Alex Alderson ·

ImageShiftDelete.Net

High Boy hacking device lands on Kickstarter with retro handheld design

Memet Deniz Yucekaya ·

ImageTecnoblogBR

Brazilian rival to the Flipper Zero raises over R$ 800k on Kickstarter

Giovanni Santa Rosa e Thássius Veloso ·

ImageDesbugadosBR

The Brazilian “hacker Swiss Army knife”: Flipper Zero rival raises 20× its Kickstarter goal

ImageGeeky Gadgets

Flipper One vs High Boy vs Cardputer Zero: Which Portable System Wins?

Julian Horsey ·

ImageHackster.io

If You Missed the High Boy Kickstarter, You Can Now Pledge on Indiegogo

Cameron Coward ·

Support High Boy’s development.

High Boy combines wireless tools, infrared and apps in one handheld device.

Get High Boy

See rewards, pricing and estimated delivery on Indiegogo.

Crowdfunding · A product in development

Eight capabilities in one device: Wi-Fi 6, Bluetooth, Sub-GHz, LoRa, NFC, RFID, infrared and USB-C

Wi-Fi 6 · 802.11ax · dual-band

Wi-Fi

Test 2.4 GHz and 5 GHz networks with the built-in Wi-Fi 6 radio.

  • 2.4 + 5 GHz
  • Wi-Fi 6
  • ESP32-C5

TentacleOS beta · Illustrative interface preview

1 of 8

Apps and controls.

Photos from development builds. Menus may differ in the latest TentacleOS beta.

Over-the-shoulder view of someone holding High Boy with the Infrared app on screen

Navigation

Navigate with one thumb.

Hand holding High Boy showing the Infrared menu: Learn, Send, Remote Control, Browse Signals and Burst

Infrared

Learn and replay remote signals.

High Boy held in both hands showing the Apps carousel on screen

Apps

Browse installed apps.

High Boy tilted on a desk showing the Games list: Octo Pet, Octo Flap, Snake and Breakout

Games

Games in an earlier development build.

Hand holding High Boy showing the MouseAir app with left click, right click and scroll controls

MouseAir

Click and scroll wirelessly.

First-person view of High Boy's D-pad, OK button and back key

Controls

D-pad, OK and back buttons.

Hardware

microSD storage, a built-in speaker, USB-C and an 18-pin GPIO header.

High Boy lying on its side with the microSD card out of its slot, the speaker grille and USB-C port on the bottom edge
Close-up of the microSD card slot on the edge of High Boy

microSD

Removable storage.

Save captures and files to a microSD card.

Close-up of the slotted speaker grille on the edge of High Boy

Speaker

Built-in speaker.

Audio for alerts, app feedback and games.

A braided purple USB-C cable plugged into the bottom of High Boy

USB-C

USB-C connection.

Charging and data through USB-C.

GPIO

18-pin GPIO header.

High Boy with the ProtoBoard v1.1 prototype plugged into its GPIO header
ProtoBoard v1.1 prototype.

Power, GPIO, UART and debug USB connections for hardware projects. The current assignments are listed below.

Pinout

GPIO pinout.

Power, GPIO, UART and debug USB connections, grouped by their J14 and J15 connectors.

Close-up of the earlier ProtoBoard v1.1 prototype
Earlier prototype markings. Current J14/J15 pinout below.

J14

8 pins
High Boy J14 connector pin assignments, in schematic order
PinSignalFunction
18VSYSPower
17GPIO22SI
16GPIO23SO
15GPIO33GPIO
14GPIO21CLK
13GPIO12GPIO
12GPIO11GPIO
11GNDGround

J15

10 pins
High Boy J15 connector pin assignments, in schematic order
PinSignalFunction
103.3VPower
9GPIO25USB D+
8GNDGround
7GPIO24USB D−
6GPIO37UART RX
5GPIO38UART TX
4GPIO30GPIO
3GPIO31GPIO
2GPIO19GPIO
1GNDGround

Pin numbers follow the hardware schematic. VSYS is the system supply rail; it is not labeled as a fixed 5 V output.

Flyover of the High Boy board, from the ESP32-P4 to the ESP32-C5

The board

Two processors. Separate roles.

An ESP32-P4 handles the interface and applications. An ESP32-C5 handles dual-band Wi-Fi 6 and Bluetooth connectivity.

  • ESP32-P4Apps, screen, USB
  • ESP32-C5Wi-Fi 6 dual-band · Bluetooth

Inside

Hardware specifications.

USB-C
charging + data
6
radios, plus infrared
18pins
GPIO header on top
2
processors: ESP32-P4 + ESP32-C5

  • ESP32-P4

    application core

  • ESP32-C5

    Wi-Fi dual-band + BLE

  • CC1101 + SX1262

    Sub-GHz + LoRa

  • ST25R3916

    NFC-A/B/F/V

High Boy lying on a green cutting mat next to a keyboard and a coffee cup

On the bench

High Boy on the workbench.

A handheld device with a D-pad, a back button and connections for your next hardware project.

High Boy & Octobit

Two friends on a sofa laughing at messages exchanged over LoRa while the Wi-Fi is out

Development demos

Message over LoRa.

Two High Boys exchange messages over LoRa in the development film. Firmware features are still evolving.

A hand holding High Boy up to a door entry keypad

RFID

RFID at the reader.

A prototype demonstration with a compatible reader.

An air conditioner being switched on with High Boy

Infrared

Control infrared devices.

Save infrared signals to control TVs, air conditioners and projectors.

Close-up of High Boy's screen showing the Bluetooth menu and a connecting animation

Bluetooth

Scan Bluetooth devices.

Find and connect to nearby devices from the Bluetooth menu.

Join the
community

Ask questions, share projects and follow High Boy’s development on Discord.

Join the DiscordExplore GitHub

Worldwide

Explore the globe.

Drag to rotate. Tap a marker or choose a country below.

Illustrative globe.

Open-source firmware.

TentacleOS is published under GPL-3.0. Explore the firmware and apps, build your own version or contribute to the project.

Currently in beta. Some tools are still in development.

ImageExplore TentacleOS

FAQ

Questions, answered.

What High Boy is, what is inside it, how it compares to the Flipper Zero, and where it ships. Anything else, ask on the Discord.

What is High Boy?

High Boy is a pocket-sized tool for exploring wireless signals and hardware, made by High Code. It puts six radios and infrared in one handheld — Wi-Fi 6, Bluetooth 5.3 LE, Sub-GHz, LoRa, NFC and 125 kHz RFID — plus USB-C and an 18-pin GPIO header, so you can study the wireless world around you, test the devices you own and build your own tools.

How is High Boy different from the Flipper Zero?

High Boy runs two chips: an ESP32-P4 for the apps, the screen and USB, and an ESP32-C5 for dual-band Wi-Fi 6 and Bluetooth 5.3. Dual-band Wi-Fi and long-range LoRa are built into the board rather than added later, the screen is in colour, and the TentacleOS firmware and apps are open source. Creators have put the two side by side on video — see the Watch section.

What are the specs?

ESP32-P4 application core and ESP32-C5 radio core (Wi-Fi 6 on 2.4 and 5 GHz, Bluetooth 5.3 LE); CC1101 Sub-GHz radio for 315, 433, 868 and 915 MHz; native SX1262 LoRa on 868 / 915 MHz; ST25R3916 NFC reader; 125 kHz RFID; infrared with a four-LED transmitter matrix and a receiver; USB-C for charging and data; a rechargeable battery; a microSD slot; a speaker; and an 18-pin GPIO header.

Is High Boy open source?

TentacleOS, the firmware for High Boy, is published on GitHub under the GPL-3.0 license. Its source includes the apps, drivers and build instructions. The current development version is a beta and is still incomplete.

TentacleOS on GitHub

Can I write my own apps for it?

TentacleOS includes open-source apps you can study and build on. For hardware projects, the header exposes VSYS, 3.3V, ground, GPIO, UART and debug USB connections. The Hardware section lists the pin assignments.

Is High Boy certified?

High Boy is still in development and regulatory certification has not been completed. Follow the campaign updates for certification status and delivery availability.

View campaign updates

Where can I buy High Boy, and what does it cost?

High Boy is a product in development funded through crowdfunding. Check the Indiegogo campaign for current rewards, pricing, shipping options and estimated delivery.

View the Indiegogo campaign

Where does High Boy ship?

Shipping availability and estimated delivery are listed on the campaign page. Check the options for your country before backing the project.

Check shipping options

Where do I get help or meet other owners?

The High Code Discord is where support, ideas and new features happen, with people building, testing and learning with the project. High Code also posts on GitHub, Instagram, YouTube and X.

Join the Discord

Get High Boy.

Choose your reward and check the latest delivery estimate on Indiegogo.

Get High BoyExplore the code on GitHub

Crowdfunding · A product in development. See rewards, pricing and estimated delivery on Indiegogo.

Someone laughing while holding High Boy