Development Boards / Trinkets

Top view of an Adafruit Trinket M0 development board plugged in and powered up with a USB cable held by a hand.

Trinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your expensive dev-board and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost arduino-IDE programmable board!

Trinket M0 dev board with SAMD21 chipset.

Adafruit Trinket M0 - for use with CircuitPython & Arduino IDE

Product ID: 3500

The Adafruit Trinket M0 may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATSAMD21, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your...

$8.95

In stock

Hand holding Adafruit TriHand holding small Adafruit Trinket - Mini Microcontrollerket board.

Adafruit Trinket - Mini Microcontroller - 5V Logic

Product ID: 1501

Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it. Please check out the Trinket M0. It has built-in USB, more capabilities, and is comparable in price! Trinket may...

$6.95

In stock

Adafruit Pro Trinket - 5V 16MHz

Product ID: 2000

Deprecation Warning: The Pro Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Pro Trinket so that people can maintain some older projets, we no longer recommend it. Please check out the Metro Mini (ATmega328 @ 5V 16 MHz), ItsyBitsy 32u4 5V 16MHz, ItsyBitsy 32u4 @ 3.3V...

$9.95

In stock

Adafruit Trinket - Mini Microcontroller - 3.3V Logic - MicroUSB

Product ID: 1500

$6.95

In stock

Adafruit Pro Trinket - 3V 12MHz

Product ID: 2010

$9.95

48 in stock

Adafruit LiIon/LiPoly Backpack soldered onto a Pro Trinket, plugged into a solderless breadboard.

Adafruit LiIon/LiPoly Backpack Add-On for Pro Trinket/ItsyBitsy

Product ID: 2124

If you have an ItsyBitsy or Pro Trinket you probably know it's the perfect little size for a portable project. This LiPoly backpack makes it really easy to do! Instead of wiring 2 or 3 boards together to make a charging system, this little PCB sits on top of the PCB and allows a LiPoly/LiIon battery to plug in. When the Pro Trinket or ItsyBitsy USB port is powered,...

$4.95

In stock

Overhead shot of long skinny black microcontroller connected to an OLED screen and a temperature-and-humidity sensor. The sensor data displays on the OLED.

Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz - STEMMA QT / Qwiic

Product ID: 2590

One of our star development boards is the Adafruit METRO Mini 328, an excellent lil fellow that lets you make your Arduino-based project tiny. Recently we had to redesign this board to move from the obsolete CP2104 to the available CP2102N, and one thing led to another, and before you know it we made a completely refreshed design: the Adafruit METRO Mini 328 V2. The...

$14.95

In stock

USB A Socket to USB Type C Plug Adapter

Product ID: 5030

If you've got a computer or laptop with a USB C port, but you're itching to use one of our fancy new Trinkeys, this adapter will do an excellent job at turning that USB Type C port into a USB A port! Works great with any device that has a USB C port. These adapters don't magically give you USB C speeds into a USB 2.x device, and they won't give you the power...

$0.95

In stock

Adafruit ItsyBitsy 32u4 - 5V 16MHz

Product ID: 3677

What's smaller than a Feather but larger than a Trinket? It's an ItsyBitsy! Small, powerful, Arduino-compatible - this microcontroller board is perfect when you want something very compact, but still with a bunch of pins. ItsyBitsy is only 1.4" long by 0.7" wide, but has 6 power pins, 6 analog & digital pins and 17 digital pins. It packs much of the same...

$9.95

In stock

Close-up of NeoTrinkey PCB inserted into a laptop. The LEDs emit rainbow colors.

Adafruit Neo Trinkey - SAMD21 USB Key with 4 NeoPixels

Product ID: 4870

It's half USB Key, half Adafruit Trinket...it's Neo Trinkey, the circuit board with a Trinket M0 heart and four RGB NeoPixels for customizable glow. We were inspired by some USB key flashlight boards that would turn any battery pack into an LED torch. So we thought, hey what if we made something like that but with fully programmable color NeoPixels? And this is what...

$6.95

In stock

Adafruit ItsyBitsy M0 Express - for CircuitPython & Arduino IDE

Product ID: 3727

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy M0 Express! Small, powerful, with a rockin' ATSAMD21 Cortex M0 processor running at 48 MHz - this microcontroller board is perfect when you want something very compact, but still with a bunch of pins. ItsyBitsy M0 Express is only 1.4" long by 0.7" wide, but has 6 power pins, 23...

$11.95

In stock

Adafruit Trinkey QT2040 - RP2040 USB Key with Stemma QT

Product ID: 5056

It's half USB Key, half Adafruit QT Py, and a lotta RP2040...it's Trinkey QT2040, the circuit board with an RP2040 heart and Stemma QT legs. Folks are loving the QT Py 2040 we made, but maybe you want something plug-and-play. So we thought, hey what if we made something like that plugs right into your computer's USB port? And this is what we came up with! The PCB is...

$7.95

In stock

Adafruit NeoKey Trinkey - USB NeoPixel Mechanical Key Switch

Product ID: 5020

It's half USB Key, half Adafruit Trinket, half mechanical keeb...it's NeoKey Trinkey, the circuit board with a Trinket M0 heart, a NeoPixel glow, and a Cherry MX-compatible. We were inspired by single-key macro pads we've seen. So we thought, hey what if we made something like that that plugs right into your computer's USB port, with a fully programmable color...

$6.95

67 in stock

Adafruit ItsyBitsy 32u4 - 3V 8MHz

Product ID: 3675

What's smaller than a Feather but larger than a Trinket? It's an Itsy Bitsy! Small, powerful, Arduino-compatible - this microcontroller board is perfect when you want something very compact, but still with a bunch of pins. Itsy Bitsy is only 1.4" long by 0.7" wide, but has 6 power pins, 6 analog & digital pins and 17 digital pins. It packs much of the same...

$9.95

In stock

Angled shot of a 2MB SPI Flash in 8-Pin SOIC package.

GD25Q16 - 2MB SPI Flash in 8-Pin SOIC package

Product ID: 4763

These little chips are like miniature SSD drives for your electronics. When you don't need something with as much storage as a micro SD card, but an EEPROM is too small, SPI (or QSPI) Flash chips give you on-the-order-of megabytes, with little cost and complexity. We use these chips all the time on our CircuitPython boards to let folks store code and assets like...

$1.25

88 in stock

Adafruit Proximity Trinkey - USB APDS9960 Sensor Dev Board

Product ID: 5022

It's half USB Key, half Adafruit Trinket M0, half APDS9960 breakout...it's Proximity Trinkey, the circuit board with a Trinket M0 heart, APDS9960 Proximity, Light, RGB, and Gesture Sensor, and two RGB NeoPixels for a customizable glow. We wanted to make it super-easy to add one of our most popular combination-sensors to any computer with a USB port and this one is...

$9.95

52 in stock

Adafruit Rotary Trinkey - USB NeoPixel Rotary Encoder

Product ID: 4964

It's half USB Key, half Adafruit Trinket, half rotary encoder...it's Rotary Trinkey, the circuit board with a Trinket M0 heart, a NeoPixel glow, and a rotary encoder body. We were inspired by this project from TodBot where a rotary encoder was soldered onto a QT Py. So we thought, hey what if we made something like that that plugs right into your computer's USB port,...

$6.95

In stock

Adafruit Slider Trinkey - USB NeoPixel Slide Potentiometer

Product ID: 5021

It's half USB Key, half Adafruit Trinket, half mini slide pot... it's Slider Trinkey, the circuit board with a Trinket M0 heart, NeoPixel glow, and a 35mm long 10KΩ slide potentiometer. The PCB is designed to slip into any USB A port on a computer or laptop. There's an ATSAMD21 microcontroller on board with just enough circuitry to keep it happy. One pin of the...

$9.95

In stock

Trinket M0 Powered NeoPixel Goggle Kit Pack

Product ID: 2221

One of the most popular Trinket projects now has its own kit pack! Make your very own programmable NeoPixel goggles with 2 x 16 LED rings and an Adafruit Trinket. It even comes with a rechargeable LiPoly battery and charger. It's a great easy build and when you're done you'll have the coolest accessory. Follow along with our popular Kaleidoscope Eyes tutorial. The...

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$39.95

Out of stock

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Getting Started with Adafruit Trinket book along with a collection of electronic parts included in kit.

Getting Started with Trinket Book + NeoPixel Goggles Pack

Product ID: 2290

Pickup a copy of Getting Started with Adafruit Trinket and then hit the ground running with one of the most popular Trinket projects: the Trinket-Powered NeoPixel Goggle Kit Pack! This pack is perfect for somebody who is up for a little challenge and eager to dive further into the wonderful world of Adafruit Trinket. This pack includes the Getting Started book and...

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$49.95

Out of stock

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Close up view of Getting Started with Adafruit Circuit Playground Express book.

Getting Started with Trinket Book + Adafruit Trinket 5V Kit Pack

Product ID: 2289

Pick up a copy of "Getting Started with Adafruit Trinket" and for a couple dollars more, hit the ground running with a Trinket 5V! As of October 12th, 2015 this product now ships with an Adafruit Trinket with a micro-USB plug. This pack is great for somebody starting out with microcontrollers to get them up and running quickly with this board, as well as for somebody...

$21.95

8 in stock

Angled shot of 6 Trinkets next to 16-pin headers.

Trinket 6-Pack - 3 x 3.3V and 3 x 5V Trinkets

Product ID: 1509

We're no longer selling this pack of Trinket 3V+5V, we recommend our Trinket M0 which has better USB support, way faster processor, a ton more memory and CircuitPython support! Be the life of your (hackerspace) party when you show up with this six-pack! Get 6 Trinkets at 12% off - comes with 3 x 3V Trinkets, and 3 x 5V Trinkets. As of October 12th, 2015 the 6-pack...

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Discontinued

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Angled shot of 6 Trinkets next to two 16-pin headers each.

Adafruit Pro Trinket 6-Pack - 3 x 3V and 3 x 5V Trinkets

Product ID: 2085

We're no longer selling this pack of Pro Trinket 3V+5V, we recommend our Metro Mini (5V 328P with USB-Serial Converter), Feather 328P (3.3V 328P with USB-Serial and LiPo charger), ItsyBitsy 32u4 (Available in both 3.3V and 5V) and the ItsyBitsy M0. The Metro Mini and Feather 328p both use the same ATmega328P chip, but come with a real USB-serial converter chip. The...

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Discontinued

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Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz - STEMMA QT / Qwiic

Product ID: 5597

Now available here! One of our star development boards is the Adafruit METRO Mini 328, an excellent lil fellow that lets you make your Arduino-based project tiny. Recently we had to redesign this board to move from the obsolete CP2104 to the available CP2102N and one thing led to another and before you know it we made a completely refreshed design: the Adafruit METRO...

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Discontinued

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