Development Boards / ItsyBitsy

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,...

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...

Give your ItsyBitsy project a lift with the Adafruit AirLift Bitsy Add-On - a daughterboard that lets you use the powerful ESP32 as a WiFi co-processor. You probably have your favorite ItsyBitsy (like the Itsy' M4) that comes with its own set of awesome peripherals and lots of libraries. But it doesn't have WiFi built in! So lets give that chip a best friend, the...

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,...

These three Stacking Headers alone are, well, lonely. But pair them with our ItsyBitsy boards, and you're in business! Great for putting something a-top your ItsyBitsy, like this AirLift bitsy add-on. Also works great for 'short' Teensy boards - not Teensy 3.5 or 3.6 long style boards. Note: Kit includes two 14-pin and one 5-pin header. ItsyBitsy not included. Don't...

These three Short Female Headers alone are, well, lonely. But pair them with any of our ItsyBitsy boards, and you're in business! These headers are particularly cute and tiny with a body height of just 5.0 mm they are the best way to minimize the amount of space your ItsyBitsy project takes up, but still maintain that flexible configuration. "Normal" socket headers...

These three Short Male Headers alone are, well, lonely. But pair them with our ItsyBitsy boards, and you're in business! These 2.54mm / 0.1" pitch headers are particularly cute and tiny and are designed to match perfectly with our shorty female header kit for ItsyBitsy. Note that you could use normal header with those headers, but these are short and don't need...

You've heard about CircuitPython and maybe you want to get started fast with a breadboard-friendly microcontroller board! We recommend the ItsyBitsy M4 - a super fast chip with tons of GPIO, analog inputs & outputs, with so much RAM that you'll never have to worry about running out of memory. And what better way to get acquainted with ItsyBitsy M4 than with this...

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...

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...

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...

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...

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?...

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