All Products

SKU: AF-857

Add a typing interface to your project with this microcontroller-friendly miniature keyboard. We found the smallest PS/2+USB keyboard available, a mere 8.75" x 4.65" x 0.6" (220mm x 118mm x 16mm)! It's small but usable to make a great accompaniment to either a microcontroller project or a comp...

SKU: AF-5960 · MPN: ADA5960

The Adafruit CH552 QT Py is a compact development board built around the WCH CH552, an enhanced 8-bit 8051 microcontroller. Running at 16 MHz with native USB device support, it packs a surprising amount of functionality into the tiny QT Py form factor with STEMMA QT / Qwiic I2C connectivity. The...

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-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-1222

The Adafruit GEMMA V2 is a tiny, coin-sized wearable microcontroller board powered by an ATtiny85 processor. At just 28 mm in diameter, it's small enough to fit into any sewable or wearable project, and affordable enough to dedicate to every build. Program it over USB with the Arduino IDE and bri...

SKU: AF-3675

The Adafruit Itsy Bitsy 32u4 3V packs the power of an Arduino Leonardo into a tiny 1.4" × 0.7" board. Built on the ATmega32u4 with native USB, it's perfect for compact projects that need a full set of GPIO pins without the bulk of a standard Arduino. Running at 3.3V and 8 MHz, the Itsy Bitsy 32u...

SKU: AF-3677

The Adafruit Itsy Bitsy 32u4 5V packs the power of an Arduino Leonardo into a tiny 1.4" × 0.7" board. Built on the ATmega32u4 running at 5V and 16 MHz — the same speed and voltage as an Arduino Uno — it's perfect for shrinking finished prototypes into compact final builds. With native USB, the I...

SKU: AF-5302

The Adafruit KB2040 is an RP2040-powered board designed specifically for mechanical keyboard builds, in the Arduino Pro Micro form factor. With castellated pads, USB-C, 8 MB of Flash, and a STEMMA QT / Qwiic connector, it's a drop-in replacement for Pro Micro boards with significantly more power ...

SKU: AF-4062

The Feather nRF52840 Express upgrades the nRF52 Bluefruit with the Nordic nRF52840 — featuring 1 MB flash, 256 KB SRAM, native USB, and Bluetooth Low Energy in a single chip. Native USB means no separate serial converter is needed; the chip handles CDC serial, and can also act as a HID keyboard, ...

SKU: AF-5973 · MPN: ADA5973

The Adafruit CH9328 UART to HID Keyboard Breakout lets any microcontroller or single-board computer emulate a USB keyboard — even without native USB support. Simply send ASCII characters or raw HID reports over a 9600-baud serial connection, and the CH9328 converts them into real keypresses on th...

SKU: AF-4870

The Adafruit Neo Trinkey is a tiny USB-A development board featuring an ATSAMD21 microcontroller and four RGB NeoPixel LEDs. Just plug it into any USB-A port on a computer or laptop and you've got a programmable, colourful key that can act as a status indicator, macro keypad, MIDI controller, or ...

SKU: DF-DFR0840

Willkommen, Calliope Mini! Developed in Germany for students in primary school and up, this heavenly star-shaped development board is a souped-up derivative of the micro: bit.The main chip on the Calliope is the same nRF51822 as the micro: bit so for many purposes, it can be programmed the s...

SKU: WS-20187

The RP2040-Zero is a compact Pico-like development board based on the Raspberry Pi RP2040 microcontroller. With a USB-C connector, castellated pads for direct soldering to carrier boards, and 29 multi-function GPIO pins, it packs full RP2040 capability into a miniature form factor. Programming i...

SKU: AF-2590

The Adafruit Metro Mini 328 packs the same ATmega328P power as a full-sized Metro into a tiny breadboard-friendly form factor. Running at 16 MHz with 5V logic, it's pin-compatible with Arduino UNO R3 and works with the Arduino IDE by selecting "Arduino UNO" in the Boards menu. For the latest revi...

SKU: AF-5020

The Adafruit NeoKey Trinkey is a USB-A development board that combines an ATSAMD21 microcontroller, a Cherry MX-compatible key switch footprint, and an RGB NeoPixel LED into one tiny plug-in package. Insert it into any USB-A port and you've got a single-key macro pad, password entry device, or cu...

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: EC-ACA32U4CL

The Crowduino Leonardo is a microcontroller board that completely compatible with the Arduino Leonardo. It is based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power ...

SKU: AF-3800

The Adafruit ItsyBitsy M4 Express is a high-performance microcontroller board powered by the ATSAMD51 Cortex M4 running at 120 MHz with hardware floating point and DSP support. Packed into a tiny 1.4" × 0.7" form factor, it delivers 512 KB Flash, 192 KB RAM, and 2 MB of SPI Flash for CircuitPytho...

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-3379

The Feather 32u4 Bluefruit LE with Headers combines an ATmega32u4 microcontroller with a Bluetooth Low Energy module, USB connectivity, and LiPo battery charging — with standard headers pre-soldered so you can plug straight into a breadboard. The Bluefruit module is built on the Nordic nRF51822 ...