Development Boards / ARM Development

These little cables are handy when programming or debugging a tiny board that uses 10-pin 1.27mm (0.05") pitch SWD programming connectors. We see these connectors often on ARM Cortex dev kits, and have a few handy in our ARM-dev box. We thought you may want a backup cable as well, so now they are in the Adafruit shop! One cable per order. The ribbon cable is...

A wild Kee Boar appears! It’s a shiny KB2040! An Arduino Pro Micro-shaped board for Keebs with RP2040. (#keeblife 4 evah) A lot of folks like using Adafruit parts for their Keeb builds – but with the ItsyBitsy not being pin-compatible with the Pro Micro pinout, it really wasn't very easy without some sort of adapter plate. Now we’re seeing lots of...

This adapter board is designed for adapting a 'classic' 2x10 (0.1"/2.54mm pitch) JTAG cable to a slimmer 2x5 (0.05"/1.27mm pitch) SWD Cable. It's helpful for using products like the JTAGulator or SEGGER J-Link with tiny boards that use the 10-pin SWD programming connector. This board comes with no cables. It's really just the adapter - but is super helpful when you...

This adapter board is designed to make it easier to use ARM dev boards that use slimmer 2x5 (0.05"/1.27mm pitch) SWD cables for programming. It's helpful for using products like the JTAGulator, STLink or SEGGER J-Link with tiny boards that use the 10-pin SWD programming connector, often Cortex M0 or M3's. This board comes with no cables. It's really just the breakout...

A new chip means a new Feather, and the Raspberry Pi RP2040 is no exception. When we saw this chip we thought "this chip is going to be awesome when we give it the Feather Treatment" and so we did! This Feather features the RP2040, and all niceties you know and love about Feather Measures 2.0" x 0.9" x 0.28" (50.8mm x 22.8mm x 7mm) without headers soldered in. Light...

These cables are handy when programming or debugging a tiny board that uses 10-pin 1.27mm (0.05") pitch SWD programming connectors. We see these connectors often on ARM Cortex dev kits and have a few handy in our ARM dev box. We thought you might want a backup cable as well, so now they are in the Adafruit shop! One cable per order. The ribbon cable is 0.06mm/0.025"...

Raspberry Pi Pico 2W is Raspberry Pi Foundation's update to their popular RP2040-based wireless ico board, now built on RP2350: their new high-performance, secure microcontroller. With a higher core clock speed, double the on-chip SRAM (512KB), double the on-board flash memory (4MB!), more powerful Arm M33 cores, new security and low-power features, and upgraded...

Raspberry Pi Pico 2W is Raspberry Pi Foundation's update to their popular RP2040-based wireless ico board, now built on RP2350: their new high-performance, secure microcontroller. With a higher core clock speed, double the on-chip SRAM (512KB), double the on-board flash memory (4MB!), more powerful Arm M33 cores, new security and low-power features, and upgraded...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 Adalogger - our take on an 'all-in-one' Cortex M0 datalogger (or data-reader) with built in USB and battery charging. Its an Adafruit Feather M0 with...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they're ready to do the same for microcontrollers with the release of the brand new Raspberry Pi Pico WH. This low-cost microcontroller board features their powerful new chip, the RP2040, and all the fixin's to get started with IoT embedded electronics...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they're ready to do the same for microcontrollers with the release of the brand new Raspberry Pi Pico. This low-cost microcontroller board features a powerful new chip, the RP2040, and all the fixin's to get started with embedded electronics projects at a...

You're probably really used to microcontroller boards with USB, but what about a dev board with two? Two is more than one, so that makes it twice as good! And the Adafruit Feather RP2040 with USB Host is definitely double-the-fun of our other Feather RP2040 boards, with a USB Type A port on the end for connecting USB devices to. Now you might be thinking "hey...

At the Feather M0's heart is an ATSAMD21G18 ARM Cortex M0+ processor, clocked at 48 MHz and at 3.3V logic, the same one used in the new Arduino Zero. This chip has a whopping 256K of FLASH (8x more than the Atmega328 or 32u4) and 32K of RAM (16x as much)! This chip comes with built in USB so it has USB-to-Serial program & debug capability built in with no need...

It's what you've been waiting for, the Feather M4 Express featuring ATSAMD51. This Feather is fast like a swift, smart like an owl, strong like a ox-bird (it's half ox, half bird, OK?) This feather is powered by our new favorite chip, the ATSAMD51J19 - with its 120MHz Cortex M4 with floating point support and 512KB Flash and 192KB RAM. Your code will zig and zag and...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Feather M0 Basic Proto, it has a bunch of prototyping space built right in. We have other boards in the Feather family, check'em out here! At the Feather M0's heart is...

This is the Adafruit Feather RP2040 Adalogger - our take on an 'all-in-one' RP2040 data-logger (or data-reader) with built-in USB, battery charging, and a microSD holder ready to rock! We have other boards in the Feather family, check'em out here The RP2040 Adalogger is the same size and shape as a Feather and is intended to make your next data logging or data...

Explore new microcontroller worlds with an ST-Link-Compatible Programmer & Emulator / Debugging dongle. This little USB stick contains a microcontroller with the code for ST's classic programmer/emulator for STM8 and STM32 bit processors. Since STM's are so common, this tool will come in handy whenever you encounter them. You can even get 5V and regulated 3.3V...

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy nRF52840 Express featuring the Nordic nRF52840 Bluetooth® LE processor! Teensy & powerful, with an fast nRF52840 Cortex M4 processor running at 64 MHz and 1 MB of FLASH - this microcontroller board is perfect when you want something very compact, with a heap-load of memory and...

Raspberry Pi Pico 2 is Raspberry Pi Foundation's update to their popular RP2040-based Pico board, now built on RP2350: their new high-performance, secure microcontroller. With a higher core clock speed, double the on-chip SRAM (512KB), double the on-board flash memory (4MB!), more powerful Arm M33 cores, new security and low-power features, and upgraded interfacing...

One of our favorite Feathers, the Feather M4 Express, gets a glow-up here with an upgrade to the SAME51 chipset which has built-in CAN bus support! Like its SAMD51 cousin, the ATSAME51J19 comes with a 120MHz Cortex M4 with floating point support and 512KB Flash and 192KB RAM. Your code will zig and zag and zoom, and with a bunch of extra peripherals for support, this...

The Raspberry Pi Debug Probe is an all-in-one USB-to-debug kit that provides all the necessary hardware and cables for easy, solderless, plug-and-play debugging. For when "printf-style-debugging" just isn't enough, this kit which brings the power of gdb & OpenOCD step and trace debugging to the RP2040 chipset. And for those of us who do like printf-debugging, it...

Raspberry Pi Pico 2 with Header is Raspberry Pi Foundation's update to their popular RP2040-based Pico board, now built on RP2350: their new high-performance, secure microcontroller. With a higher core clock speed, double the on-chip SRAM (512KB), double the on-board flash memory (4MB!), more powerful Arm M33 cores, new security and low-power features, and upgraded...

Feather is the new development board from Adafruit, and like its namesake, it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 Bluefruit LE - our take on an 'all-in-one' Arduino-compatible + Bluetooth® Low Energy with built-in USB and battery charging. It's an Adafruit...

A new chip means a new ItsyBitsy, and the Raspberry Pi RP2040 is no exception. When we saw this chip we thought "this chip is going to be awesome when we give it the ItsyBitsy teensy-weensy Treatment" and so we did! This Itsy' features the RP2040, and all niceties you know and love about the ItsyBitsy family What's smaller than a Feather but larger than a Trinket?...

Lots of microcontrollers these days have USB ports on them, to program or debug, act like a keyboard or disk drive, or simply send data between a computer and your firmware. But did you know that you can also add a USB Host port? That means that your microcontroller project can have a keyboard or mouse or disk drive plugged into it - which opens up a huge ecosystem...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they're ready to do the same for microcontrollers with the release of the brand new Raspberry Pi Pico. This low-cost microcontroller board features a powerful new chip, the RP2040, and all the fixin's to get started with embedded electronics projects at a...

The Espruino Puck.js v2 is a low-energy Bluetooth® smart button that can be programmed and debugged wirelessly with JavaScript. It is both multi-functional and easy to use, with a custom circuit board, the latest Nordic chip, Bluetooth LE, NFC, magnetometer, temperature sensor, RGB LEDs, infrared, and much more, all enclosed in a tiny silicone case. You get all...

Doing some serious development on any ARM-based platform, and tired of 'printf' plus an LED to debug? A proper JTAG/SWD HW debugger can make debugging more of a pleasure and less of a pain. It allows you to program your devices at the click of a button, read or write memory addresses or registers on a live system, temporarily halt program execution at a given...

Toss away your boring old SWD/JTAG adapters! This Black Magic Probe, designed by 1BitSquared with Black Sphere Technologies, is a next-generation debugging tool, perfect for your ARM Cortex hacking. Unlike most dongles, you don't need to use OpenOCD or STLink. Instead, the BMP is itself a GDB server port, emulated through the USB serial connection. We just thought...

Wouldn't it be cool if you could display images and graphics from a microcontroller directly to an HDMI monitor or television? We think so! So we designed this RP2040 Feather that has a digital video output (a.k.a DVI) that will work with any HDMI monitor or display. Note it doesn't do audio, just graphics! It's kinda like we took our RP2040 Feather and DVI Breakout...

Choo! Choo! This is the RP2350 Metro Line, making all station stops at "Dual Cortex M33 mountain", "528K RAM round-about" and "16 Megabytes of Flash town" and a bonus stop at "8 Megabytes of PSRAM village". This train is piled high with hardware that complements the Raspberry Pi RP2350 chip to make it an excellent development board for projects that want...

Espruino Bangle.js v2 - Hackable Javascript Smart Watch is an open, hackable smartwatch. With a sunlight-readable always-on screen, 4-week battery life, complete flexibility, and full control over your data, Espruino Bangle.js v2 is a refreshing break from expensive smartwatches. You can install new apps from the web or develop your own using JavaScript. All you need...

The pyboard is a compact and powerful electronics development board that runs MicroPython. It connects to your PC over USB, giving you a USB flash drive to save your Python scripts, and a serial Python prompt (a REPL) for instant programming. Requires a micro USB cable, and will work with Windows, Mac and Linux. This is the original pyboard, which is more powerful...

This breakout board is a "three in one" product: The ATtiny817 is part of the 'next gen' of AVR microcontrollers, and now we have a cute development/breakout board for it, with just enough hardware to get the chip up and running.It's also an Adafruit seesaw board. Adafruit seesaw is a near-universal converter framework which allows you to add and extend hardware...

Adafruit seesaw is a near-universal converter framework which allows you to add and extend hardware support to any I2C-capable microcontroller or microcomputer. Instead of getting separate I2C GPIO expanders, ADCs, PWM drivers, etc, seesaw can be configured to give a wide range of capabilities. For example, our ATSAMD09 breakout with seesaw gives you 3 x 12-bit ADC...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 WiFi w/ATWINC1500 - our take on an 'all-in-one' Arduino-compatible + high speed, reliable WiFi with built in USB and battery charging. Its an...

Choo! Choo! This is the RP2350 Metro Line, making all station stops at "Dual Cortex M33 mountain", "528K RAM round-about" and "16 Megabytes of Flash town". This train is piled high with hardware that complements the Raspberry Pi RP2350 chip to make it an excellent development board for projects that want Arduino-shape-compatibility or just need the extra space and...

Introducing the FeatherS2 Neo - The full-featured ESP32-S2-based development board in a Feather format from Unexpected Maker. The FeatherS2 Neo is a powerhouse, fully souped up with 4 MB of Flash memory (for firmware and file storage) and 2 MB of QSPI-based external PSRAM so you can have massive storage buffers. The FeatherS2 Neo has onboard LiPo battery charging,...

We got a big ol' blender and tossed in an ItsyBitsy M4, two NeoTrellis boards and an electret mic amp - turned on the 'mix' button and out came the NeoTrellis M4 - a super fun dev board for anyone who likes to squish buttons, see pretty lights and maybe make a tune or two. The NeoTrellis M4 is an all-in-one USB + NeoPixel + Elastomer + Audio board. It's powered by...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 WiFi w/ATWINC1500 - our take on an 'all-in-one' Arduino-compatible + high speed, reliable WiFi with built in USB and battery charging. It's an...

The Spresense LTE Extension Board adds LTE connectivity to the Spresense main board and carries an onboard antenna and a nanoSIM cardholder. It also extends the interfaces of the Spresense main board with multiple mic inputs, a headphone jack, and a microSD card slot. The Spresense main board and the Spresense LTE extension board are connected by a board-to-board...

Spresense is a compact development board based on Sony’s power-efficient multicore microcontroller CXD5602. It allows developers to create IoT applications in a very short time and is supported by the Arduino IDE as well as the more advanced NuttX based SDK. The Spresense Extension Board has the following connectors in addition to Arduino Uno compatible pin...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 WiFi w/ATWINC1500 - our take on an 'all-in-one' Arduino-compatible + high speed, reliable WiFi with built in USB and battery charging. Its an...

This PSRAM is a 64 Mbit (8 Megabyte) serial pseudo SRAM device, organized in 8 M x 8 bits and in a compact SOIC-8 package. It is fabricated using the high-performance and high-reliability CMOS technology and can operates at 3.3V and can support up to 133 MHz clock rate. Note, however, that burst operations which cross page boundaries have a lower max input clock...

What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy M4 Express featuring the Microchip ATSAMD51! Small, powerful, with a ultra fast ATSAMD51 Cortex M4 processor running at 120 MHz - this microcontroller board is perfect when you want something very compact, with a ton of horsepower and a bunch of pins. This Itsy is like a bullet train,...

If there is one thing Adafruit is known for, its mega-blinky-fun-rainbow-LEDs. We just love sticking NeoPixels anywhere and everywhere. When we saw the new 'PIO' peripheral on the RP2040 from Raspberry Pi, we just knew it would be perfect for driving large quantities of NeoPixels. So we created this board, the Adafruit Feather RP2040 SCORPIO, designed specifically...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they're ready to do the same for microcontrollers with the release of the brand new Raspberry Pi Pico W. This low-cost microcontroller board features their powerful new chip, the RP2040, and all the fixin's to get started with IoT embedded electronics projects...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they're ready to do the same for microcontrollers with the release of the brand new Raspberry Pi Pico H with Soldered Headers. This low-cost microcontroller board features their powerful new chip, the RP2040, and all the fixin's to get started with IoT...

Choo! Choo! This is the RP2040 Metro Line, making all station stops at "Dual Cortex M0+ mountain", "264K RAM round-about" and "16 Megabytes of Flash town". This train is piled high with hardware that complements the Raspberry Pi RP2040 chip to make it an excellent development board for projects that want Arduino-shape-compatibility or just need the extra space and...

The SEGGER J-Link BASE is identical to the cheaper J-Link EDU model except for the terms of use. If you're going to use your debugger strictly for personal, non-commercial projects, such as publishing open source designs that you're not selling, then you should get the EDU version! It's the same but significantly cheaper. On the other hand if you're making money, or...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather M0 WiFi w/ATWINC1500 - our take on an 'all-in-one' Arduino-compatible + high speed, reliable WiFi with built in USB and battery charging. Its an...

The Teensy boards will be discontinued due to supply changes. Get the ones we have on sale now! For the latest on Teensy, please visit PJRC forums for more information. We’re working on an open-source, community-friendly alternative — stay tuned! The Teensy 4.1, like the 4.0, also features an ARM Cortex-M7 processor at 600 MHz, with an NXP iMXRT1062 chip,...

This audio adaptor lets you easily add high quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with Teensy 4.0 (Rev D, as of Feburary 17, 2025). It supports stereo headphone and stereo line-level output, and also stereo line-level input or mono microphone input. The Teensy Audio Library lets you use the input and output simultaneously together...

This audio adapter lets you easily add high-quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with a Teensy 3.2, 3.5, or 3.6. It supports stereo headphone and stereo line-level output, and also stereo line-level input or mono microphone input. The audio chip connects to Teensy v3 using 7 signals. The I2C pins SDA and SCL are used to control the...

The Teensy boards will be discontinued due to supply changes. Get the ones we have on sale now! For the latest on Teensy, please visit PJRC forums for more information. We’re working on an open-source, community-friendly alternative — stay tuned! Who else could pack a 600 MHz microcontroller into such a Teensy little board? The Teensy 4.0 features an ARM...

Introducing the FeatherS2 - The full-featured ESP32-S2 based development board in a Feather format from Unexpected Maker. The FeatherS2 is a power house, fully souped up with 16 MB of Flash memory (for firmware and file storage) and 8 MB of QSPI-based external PSRAM so you can have massive storage buffers. This Feather comes with two 3.3V regulators: The first one is...

Turbo-charge your mbed LPC1769 dev board with this compact but feature-full application board. Fully assembled, just plug in your mbed and you will be ready to rock. Featuring: 128x32 Graphics LCD. 5 way joystick. 2 x Potentiometers. 3.5mm Audio jack (Analog Out). Speaker, PWM Conencted. 3 Axis +/1 1.5g Accelerometer. 3.5mm Audio jack (Analog In). 2 x Servo motor...

If you like the speed and simplicity of ARM Cortex M0+ chips, but want to just dip a toe in, you'll fall in love with the adorable little LPC810. This particular chip in DIP8 really jumped out at us since it's so different than what people usually think of when they hear 'ARM'. The DIP8 LPC810 is still somewhat of a challenge to use precisely because it's so small...

Teensy-LC (Low Cost) is a powerful 32 bit microcontroller board, with a rich set of hardware peripherals, at a very affordable price! Teensy-LC delivers an impressive collection of capabilities to make modern electronic projects simpler. It features an ARM Cortex-M0+ processor at 48 MHz, 62K Flash, 8K RAM, 12 bit analog input & output, hardware Serial, SPI &...

Discontinued - you can grab Espruino Puck.js v2 instead! Control Electronics quickly and easily with a tiny USB stick that runs JavaScript - introducing the Espruino Pico! Dig in to the JavaScript of things, with a mini version of the popular Espruino board we already carry This little board has an STM32 microcontroller pre-programmed with Espruino all ready to go so...

Teensy 3.1 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.1 brings a low-cost 32 bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.1 is an upgrade over 3.0: now with 64K of RAM, 256K of Flash, 5V...

If you want a fast, modern MCU that has just about everything covered for you, the ARM Cortex-M3 based LPC1769 is a pretty reliable choice! 120MHz ARM Cortex-M3 MCU with 512 kB flash and 64 kB SRAM. Full-Speed (12 Mb/s) USB 2.0 with on-chip PHY with support for USB device, host and OTG. Ethernet support (with dedicated DMA for high speed memory transfers). Four...

As of 11/04/14, Xively has discontinued their support for this Jumpstart kit. You can still get the mbed boards from us here. Xively Jumpstart Kit: ARM® mbed Edition Xively and ARM have partnered to provide you the hardware, software and services you need to accelerate your ideas into connected products. The ARM mbed starter kit is available today and has...

So you have a Teensy and a RGB LED Matrix Panel and you want an easy way to add graphics to your matrix without having to toss aside your Teensy or do too much soldering. Enter the SmartMatrix SmartLED Shield (V4) for Teensy 3.2, 3.5, or 3.6 (not the Teensy LC)! The SmartLED Shield gives you an easy way to connect up a Teensy 3.2, Teensy 3.5, or Teensy 3.6 to one of...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they've done the same for microcontrollers with the release of the powerful new chip, the Raspberry Pi RP2040. We've used this chip in a bunch of breakouts and dev boards, but perhaps you want to use it too? Now these are available in packs of 100 at a great...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they've done the same for microcontrollers with the release of the powerful new chip, the Raspberry Pi RP2040. We've used this chip in a bunch of breakouts and dev boards, but perhaps you want to use it too? Now these are available in a whole honkin' reel for...

Put your Arduino project on TURBO mode with the high-speed, high-power Arduino Due! The Due cranks it up to 11 with an 84 MHz ARM core processor - 512K of FLASH storage! 96K of RAM! Both USB client and host! The Arduino Due is ideal for those who want to build projects that require high computing power. For example, remotely-controlled drones that, in order to fly,...

With the new Arduino M0 Pro board, the more creative individual will have the potential to create one’s most imaginative and new ideas for IoT devices, wearable technologies, high tech automation, wild robotics and other not yet thinkable adventures in the world of makers. Note: As of July 23rd, 2015 Adafruit is shipping the M0 Pro which is the predecessor to...

Discontinued - you can grab SEGGER J-Link EDU Mini - JTAG/SWD Debugger instead! The SEGGER J-Link EDU is identical to the more expensive J-Link BASE model except for the terms of use. If you're going to use your debugger strictly for personal, non-commercial projects, such as publishing open source designs that you're not selling, then you should get this EDU...

3.0 has been replaced with 3.1 - which is even better and awesomer! We've got a few of these remaining, in case you want to pick them up at a discount. Once they're gone, they're gone! Teensy 3.0 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.0 will bring a low-cost 32 bit ARM Cortex-M4 platform to hobbyists, students...

The LPC1347 LPCXpresso board is part of NXP's LPCXpresso eco-system of low cost development boards based around the free (GCC and Eclipse-based) LPCXpresso IDE. All LPCXpresso boards include an on-board hardware SWD/JTAG debugger, so you don't need any additional hardware (other than a USB mini-B cable) to start some serious debugging (including setting and stepping...

Get started with an mbed and NFC/RFID using this starter pack that has everything you need to get started! This pack contains: 1 x mbed + extras: fully assembled and tested mbed with mini-B USB cable and reference cards. 1 x NFC/RFID breakout board - featuring the PN532. 1 x RFID card with 1K programmable EEPROM. 1 x Full-sized breadboard (we now ship white not clear...

The Esquilo Air is everything you'll need to make any stand-alone internet enabled devices in a matter of minutes! This new generation of WiFi boards has a built in web-based IDE - that is, its on the board itself. Yet, its got the lightweight speed of an embedded Cortex M4 processor. This complete IoT development system comes equipped with 1MB of flash, 18 PWM...

The Prop Shield with Motion Sensors for Teensy 3.2 and Teensy-LC is meant for making interactive light and sound effects on small handheld props and wearable costumes! Good for all sorts of projects, and designed by the creator of the Teensy so you know it's gonna be well supported Motion Sensors - Allows motion interactive light & sound.Audio Amplifier - Clear...

The pyboard Lite is a compact and powerful electronics development board that runs MicroPython. It connects to your PC over USB, giving you a USB flash drive to save your Python scripts, and a serial Python prompt (a REPL) for instant programming. Requires a micro USB cable, and will work with Windows, Mac and Linux. This is the Lite version of pyboard, which comes...

The awesome new Teensy 3.5 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.5 brings a low-cost 32-bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.5 is an upgrade over 3.2, for when you need even...

The awesome new Teensy 3.6 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.6 brings a low-cost 32-bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.6 is an upgrade over 3.2 and 3.5, for when you need...

There are smart coffeemakers, smart mirrors, color-changing smart fabrics, what will they come out with next? Check out Espruino's Pixl.js, a smart LCD with Bluetooth LE! The Espruino Pixl.js is a low energy Bluetooth smart display that can be programmed and debugged wirelessly with JavaScript. It is both multi-functional and easy to use, with a custom circuit board...

This low-cost Prop Shield for Teensy 3.2 and Teensy-LC is meant for making light and sound effects on small handheld props and wearable costumes! Good for all sorts of projects, and designed by the creator of the Teensy so you know it's gonna be well supported Audio Amplifier - Clear quality audio output to a small speaker.Fast LED Driver - Drive APA102 / Dotstar...

The mbed is a tool for rapid prototyping with microcontrollers using the beefy LPC1768 ARM Cortex M3 chip. While it looks like a classic breadboard-friendly breakout board, this dev board has a few tricks up its sleeve. First of all, underneath the PCB is a second LPC chip which acts as the programmer: when plugging into a USB port the mbed shows up as a flash drive...

Discontinued - you can grab the Black Magic Probe with JTAG Cable and Serial Cable - V2.3 instead! If you've got a modern ARM chip devboard you'll notice that it has one of those tiny 2x5 connectors on it. Those are SWD ports, and they're used when you need to program or debug an ARM chip like those on the Particle boards. So, say you want to get into the weeds on...

Only 13mm long, Tomu really puts the micro in microprocessor. It's fully open-source development board with the silabs Gecko EFM32HG309 processor, on a little board that can slot right into your computer or laptop USB A port (USB C users will need an adapter). The board feature two tiny LEDs, and two capacitive-touch pads, as well as a native USB bootloader. While it...

SPRESENSE is a low-power board computer for the IoT that is equipped with a GPS receiver and supports High-Resolution Audio codecs. The board allows for IoT versatility and can be developed for a vast range of uses, such as a drone utilizing the GPS and high-performance processor, a smart speaker utilizing High-Resolution Audio recording and playback as well as the...

Discontinued - you can grab the STM32F411 "BlackPill" Development Board instead! The Pyboard Lite is a compact and powerful electronics development board that runs MicroPython. It connects to your PC over USB, giving you a USB flash drive to save your Python scripts and a serial Python prompt (a REPL) for instant programming. Requires a micro USB cable (not included,...

With the new Arduino Zero, the more creative individual will have the potential to create one’s most imaginative and new ideas for IoT devices, wearable technologies, high tech automation, wild robotics and other not yet thinkable adventures in the world of makers. The Arduino Zero represents a simple, yet powerful, 32-bit extension of the Arduino UNO platform....

A lot of debug adapters cost money that you'd much rather spend on tinkering. But not the IBDAP - CMSIS-DAP JTAG/SWD Debug Adapter Kit from armstart - a vendor independent debug interface that works with your PC over USB and targets ARM devices over its JTAG/SWD pins. Fully supported by most commonly used debugging tools, the IBDAP kit is able to perform debugging...

Teensy 3.2 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.2 brings a low-cost 32 bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.2 is an upgrade over 3.1! Teensy 3.2 is a drop-in replacement...

This simple development board for the STM32H750 is a great way to add a powerful STM chip to your next project. Featuring the STM32H750VBT6, this chip has 1024KB of RAM, 8MB of QSPI Flash, and runs at 480 MHz. This dev board is not designed or developed by Adafruit. It's for advanced users who are already familiar with STM32 development! We don't have detailed...

The Raspberry Pi foundation changed single-board computing when they released the Raspberry Pi computer, now they've done the same for microcontrollers with the release of the powerful new chip, the Raspberry Pi RP2040. We've used this chip in a bunch of breakouts and dev boards, but perhaps you want to use it too? Now these are available in cut tape strips of 10 for...

Try the JavaScript of things with the Espruino WiFi - the world's first open-source JavaScript microcontroller, this time with built in WiFi! This little board has an STM32 microcontroller pre-programmed with Espruino all ready to go so you can start playing with Javascript-microcontrollers. It also comes with an ESP8266 WiFi module, so you can connect to the...

Discontinued - you can grab Adafruit ESP32 Feather V2 - 8MB Flash + 2 MB PSRAM - STEMMA QT instead! Ameba RTL8722DM Mini Board (AMB 23) is a devkit for a different family of WiFi/BLE-integrated chipsets from RealTek. As more chip companies come out with their "All in One IoT" platforms, we like to stock a dev kit for folks who are interested in experimentation....

Winter of 2021, we included a free Pink Adafruit Feather RP2040 for orders $99 or more. Now available here! Vibrant-colored PCBs are of interest in the maker community. For years, fab houses such as OSH Park have offered rich purple PCBs, along with Cytron, offering several RP2040 boards with its own take on purple PCBs. We've spun up the popular (and award-winning...