These cufflinks made with Adafruit's QT Py and a NeoPixel BFF will add that extra punch of pizazz and flash to your style. Add your own messages and icons to express yourself with lights.

The Adafruit IoT Button with NeoPixel BFF can attach to the back of a QT Py or Xiao board. Onboard is single tactile switch and a single NeoPixel RGB LED. Perfect for compact IoT projects.

The PCA9546 1-to-4 I2C multiplexer lets you get up to 4 same-address I2C devices hooked up to one microcontroller - this multiplexer acts as a gatekeeper, shuttling the commands to the selected set of I2C pins.

The PCA9546 1-to-4 I2C multiplexer lets you get up to 4 same-address I2C devices hooked up to one microcontroller - this multiplexer acts as a gatekeeper, shuttling the commands to the selected set of I2C pins.

If you're looking to use the Qwiic / Stemma QT standard for your next project - but you're using a sensor or device that requires 5V power or logic, this board is designed for you! On one side of this board is 3V power and logic level inputs. In the middle is a 5V charge-pump boosting regulator that can provide 100mA continuous plus level shifting circuitry. On the opposite side is the same I2C traffic but now safely shifted up to 5V.

You can use the tiny yet mighty 5x5 NeoPixel Grid BFF add-on board with a QT Py ESP32-S2 to display the current weather conditions and temperature. The CircuitPython code is using the Open-Meteo, a free and open-source weather API, to fetch current weather data.

There's almost always so much going on that keeping track of when your next big event is happening can be difficult. This project makes that a thing of the past! Learn how to build a scrolling countdown timer to display the time remaining until your next important event!

The Adafruit MOSFET Driver is great for driving motors, inductors, high power LEDs, single-color LED strips, or other loads up with to 1.5 Amps continuous draw, 3 Amp peak. This board has a simple plug-and-play JST PH (2mm pitch) input connector for solderless use. Provide power (from 3V up to 30V) and signal (3V to 20V logic level). All of this makes the breakout a solderless MOSFET-buddy.

Our most recent display breakouts have come with a new feature: an 18-pin "EYE SPI" standard FPC connector with flip-top connector. This is intended to be a sort-of "STEMMA QT for displays" - a way to quickly connect and extend display wiring that uses a lot of SPI pins. This breakout board that brings all the GPIO to 0.1" spaced header, for breadboarding usage.

Learn how to get access to the Mastodon API and use it with CircuitPython! This guide covers what's necessary in Mastodon to get your API access token. Then, there are two examples, the first to post a toot, and the second to retrieve all posts under a specific hashtag. Toots away!

The Adafruit QT 5V to 3V Shifter Breakout lets you use your 5V microcontrollers with sensors that are not 5V compatible. On one side is 5V-safe power and logic input. In the middle is a 3.3V regulator that can provide 500mA plus level shifting circuitry. On the opposite side is the same I2C traffic but now safely shifted down to 3.3V.

The Adafruit 5x5 NeoPixel Grid BFF can attach to the back of a QT Py or Xiao board. Onboard is a grid of 25 1.5x1.5mm NeoPixel LEDs connected to pin A3 by default. You can cut/solder some jumpers to select A1, or A2 instead if you like. There's also solder pads for 5V, GND and IN data, in case you want to power externally.

The Adafruit NeoPixel Driver BFF lets you quickly add a strand of NeoPixels with a 5V level shifter and a detachable JST PH connector. This PCB is designed to fit onto the back of any QT Py or Xiao board with headers or by soldering directly. Onboard is a 74AHCT125 single-gate level shifter that will take pin A3 output and shift it up to 5V using the USB power as a reference.

To make prototyping and designing with QSPI flash a little easier, we designed these breakouts that convert the wide 8-SOIC packages to a cute 0.3" wide DIP. They're available with 16Mbit, 64Mbit and 128Mbit size chips. We find these handy when testing out different flash sizes, or if we just want to add more storage memory to a project.

If you just need a megabyte or two of extra storage for a project, we recommend an Adafruit SPI FLASH Breakout. The breakout is single-channel SPI only, but it comes with level shifting so it can be used safely with 3V or 5V power and logic. You can address them as a flat memory space or, if you like, format them with a filesystem like littleFS or FAT.