Adafruit
Adafruit IoT Button with NeoPixel BFF Add-On for QT Py and Xiao
The Adafruit IoT Button with NeoPixel BFF adds a chunky 12 mm tactile button and an RGB NeoPixel to any QT Py or Xiao development board. It's a quick way to ...
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The Adafruit IoT Button with NeoPixel BFF adds a chunky 12 mm tactile button and an RGB NeoPixel to any QT Py or Xiao development board. It's a quick way to build simple IoT button projects with visual feedback — press the button to trigger an action, and use the NeoPixel to display status.
Designed as a "Best Friend Forever" board, the BFF mounts directly onto the back of your QT Py or Xiao. Solder it permanently or use pin and socket headers for a removable setup. The button and NeoPixel pins can be reassigned by cutting and re-wiring onboard jumpers.
Key Features
- 12 mm Tactile Button – Large actuator for easy pressing; connects A2 to ground when pressed
- RGB NeoPixel – 3.5 mm addressable LED on GPIO A3 for colour status feedback
- BFF Form Factor – Mounts directly onto the back of any QT Py or Xiao board
- Configurable Pin Assignment – Cut and re-wire onboard jumpers to change button and NeoPixel pins
- Solderless or Permanent – Use headers for a removable connection or solder in place
Ideal For
- Simple IoT button projects (smart home triggers, notifications, alerts)
- Interactive prototypes with button input and LED feedback
- Compact wearable or desktop controls
- QT Py and Xiao projects needing a quick tactile interface
Package Contents
- 1× Adafruit IoT Button with NeoPixel BFF PCB (assembled and tested)
- 1× Header for soldering to QT Py
Resources
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.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
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adafruit iot button with neopixel bff
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Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
