All Products

SKU: AF-3500

The Adafruit Trinket M0 is a tiny but powerful microcontroller board built around the ATSAMD21E18 32-bit Cortex M0+ processor. It shares the same compact form factor and pinout as the original Trinket, but with a massive upgrade in processing power, memory, and connectivity — including native USB...

SKU: AF-3727

The Adafruit ItsyBitsy M0 Express is a compact yet powerful microcontroller board built on the ATSAMD21 Cortex M0+ running at 48 MHz. At just 1.4" × 0.7", it delivers the same capability as the Metro M0 or Feather M0 Express in a fraction of the size — perfect for shrinking prototypes into final ...

SKU: AF-3501

The Adafruit GEMMA M0 is a tiny, coin-sized microcontroller board designed for wearable electronics and small projects. Despite its quarter-sized footprint, it packs serious power with an ATSAMD21E18 32-bit Cortex M0+ processor, 256 KB of Flash, and 32 KB of RAM — a massive upgrade over the origi...

SKU: AF-1501

The Adafruit Trinket 5V is a tiny microcontroller board built around the Atmel ATtiny85 processor. At just 27mm × 15mm, it's small enough to fit into virtually any project and affordable enough to dedicate to a single build. Program it via the Arduino IDE over the Micro-USB connector — no separat...

SKU: AF-3505

The Adafruit Metro M0 Express brings 32-bit ARM power to the familiar Metro/UNO shield-compatible form factor. Powered by the ATSAMD21G18 ARM Cortex M0+ processor at 48 MHz, it offers 256 KB flash and 32 KB RAM — a massive upgrade over the ATmega328-based Metro. Designed from the ground up for Ci...

SKU: AF-5022

The Adafruit Proximity Trinkey is a tiny USB-A development board built around the APDS9960 multi-function sensor and an ATSAMD21 microcontroller. Plug it into any USB port and you instantly have proximity, colour, ambient light, and gesture sensing — plus two NeoPixel LEDs and two capacitive touc...

SKU: AF-5954 · MPN: ADA5954

The Adafruit TRRS Trinkey is a USB-A plug-in microcontroller designed specifically for assistive technology. It combines an ATSAMD21 processor with a switched TRRS 3.5mm audio jack, connecting all 6 jack pins (tip, ring 1, ring 2, sleeve, plus tip switch and ring 1 switch) to analog-capable GPIO ...

SKU: AF-1500

The Adafruit Trinket 3V3 is a tiny microcontroller board built around the Atmel ATtiny85 processor. At just 27mm × 15mm, it's small enough to fit into virtually any project and affordable enough to dedicate to a single build. Program it via the Arduino IDE over the Micro-USB connector — no separa...

SKU: AF-5255

The Adafruit LED Glasses Starter Kit includes everything you need to build a complete pair of programmable LED glasses. Pair the 116-LED front panel with the Bluetooth-enabled nRF52840 driver board, snap them onto the included fashion frames, and you're ready to create dazzling wearable light dis...

SKU: AF-4319

The Adafruit PyRuler is a PCB reference ruler and a fully functional CircuitPython microcontroller in one. Measuring approximately 25 × 150 mm (1" × 6"), this gold-plated FR4 ruler features common SMD component package outlines, a font size guide, trace-width diagram, and AWG wire gauge drill hol...

SKU: AF-3403

The Feather M0 Express is Adafruit's CircuitPython-optimised Feather, built around the ATSAMD21G18 ARM Cortex M0+ processor. It combines the standard Feather M0 platform with 2 MB of SPI flash storage, a Mini NeoPixel, and a UF2 bootloader for drag-and-drop programming — no special tools or drive...

SKU: AF-4600

The Adafruit QT Py SAMD21 is the original QT Py — a tiny development board built around the ATSAMD21E18 (ARM Cortex-M0+ at 48 MHz) with native USB, a STEMMA QT connector, and an RGB NeoPixel. It's the same chip found in the popular Trinket M0 and GEMMA M0, now in a Seeed Xiao-compatible form fact...

SKU: AF-5912 · MPN: ADA5912

The Adafruit SHT41 Trinkey is a tiny USB A device that combines an ATSAMD21 microcontroller with a Sensirion SHT41 temperature and humidity sensor. Simply plug it into any USB A port on your computer and start reading environmental data — no wiring, soldering, or driver installation required. Th...

SKU: AF-4229

Add a large, vibrant tri-colour eInk display to your Arduino project with this shield. The 2.7" panel displays red, black, and white pixels at 264×176 resolution that remain visible even with power completely disconnected. The shield form factor plugs directly onto Arduino-compatible boards from ...

SKU: AF-3900

The Adafruit HalloWing M0 Express is a skull-shaped development board built around the ATSAMD21G18 processor. Featuring a 1.44" full-colour TFT display, a 3-axis accelerometer, a light sensor, a speaker driver, and Feather-compatible headers, it's designed for wearables, badges, cosplay props, an...

SKU: AF-2010

Note: The Pro Trinket's bit-bang USB technique is a legacy approach that may not work reliably with modern operating systems. For new projects, consider an ItsyBitsy or Metro Mini board with native USB support at a comparable price. The Adafruit Pro Trinket 3V is a compact ATmega328P-based mic...

SKU: AF-4145

The Adafruit Feather series gives you lots of options for a small, portable, rechargeable microcontroller board. Perfect for fitting into your next prop build! This FeatherWing will unlock the prop-maker inside all of us, with tons of stuff packed in to make sabers & swords, props, toys, cosplay ...

SKU: AF-3130

The Adafruit 0.54" Quad Alphanumeric FeatherWing Display in red adds a bright, 4-character 14-segment LED display to any Feather board. Each character can display letters, numbers, and symbols, making it ideal for clocks, status indicators, sensor readouts, and more. Driven by the HT16K33 I2C ma...

SKU: AF-2719

If you've been diggin' our monochrome OLEDs but need something bigger, this display will delight you! These displays are 2.42" diagonal, and very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one turned on or off by the ...

SKU: AF-2000

Note: The Pro Trinket's bit-bang USB technique is a legacy approach that may not work reliably with modern operating systems. For new projects, consider an ItsyBitsy or Metro Mini board with native USB support at a comparable price. The Adafruit Pro Trinket 5V is a compact ATmega328P-based mic...