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Adafruit CYBERDECK Bonnet for Raspberry Pi 400
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$13.55
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The Adafruit CYBERDECK Bonnet is a GPIO extender for the Raspberry Pi 400 that lets you plug any Pi bonnet, mini-HAT, or pHAT into the back of the Pi 400 at ...
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The Adafruit CYBERDECK Bonnet is a GPIO extender for the Raspberry Pi 400 that lets you plug any Pi bonnet, mini-HAT, or pHAT into the back of the Pi 400 at an angled position. It duplicates every GPIO pin from input to output, so your add-on boards work without any pin limitations.
In addition to the full GPIO passthrough, the bonnet includes two STEMMA JST PH 3-pin connectors (on GPIO #18 and #13) and two STEMMA QT I2C ports for connecting sensors, NeoPixels, and other peripherals without soldering.
Key Features
- Full GPIO Passthrough – Every pin duplicated from the Pi 400's header to the bonnet output
- Angled Socket Header – Positions bonnets at a convenient angle on the Pi 400
- 2× STEMMA JST PH Connectors – On GPIO #18 and #13 for NeoPixels, servos, or other peripherals
- 2× STEMMA QT / Qwiic Ports – I2C connectors for sensors and displays
- Fully Assembled – Pre-assembled and tested, just plug in
Recommended Displays
- 128×32 or 128×64 OLED Bonnets
- Mini PiTFT displays (1.3" or 135×240)
- 1.3" Colour TFT Bonnet with Joystick
- E-Ink Bonnets and pHATs
Compatibility
- Designed for Raspberry Pi 400
- Works with any bonnet, mini-HAT, or pHAT that uses the standard 2×20 GPIO header
Ideal For
- Adding a heads-up display to the Pi 400
- Building cyberdeck-style projects
- Connecting STEMMA QT sensors to the Pi 400
Package Contents
- 1× Adafruit CYBERDECK Bonnet for Raspberry Pi 400 (fully assembled)
Jargon buster
Plain-language definitions for the technical terms used above.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- JST PH
- A small keyed plug-and-socket connector with 2 mm pin spacing, often used for low-power electronics connections. You need the correct JST PH cable, and its current rating limits how much power should be passed through it.
- OLED
- OLED stands for organic light-emitting diode, a display type where each pixel produces its own light. It matters because OLED screens are thin, high-contrast and easy to read for small status displays, but they can be more sensitive to image burn-in than some other display types.
- pH
- A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
- pHAT
- A smaller add-on board format for Raspberry Pi, similar in idea to a HAT but usually not full-sized. It matters because pHAT compatibility can affect how neatly a board stacks or fits into a Raspberry Pi project.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
- TFT
- A thin-film transistor display is a common type of colour LCD used for graphics screens. Knowing a product is for TFTs helps you check that the driver board matches the display’s connector, resolution, backlight, and signalling method.
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