Teensy 3.2

A Cortex M4 development board, with Arduino IDE compatible plugin means one giant leap forward from your humble Arduino beginnings.

Add the Audio+SD adapter board to make 16-bit CD quality audio a snap.

From $19.97

Addon items

This item is currently out of stock.
Sorry! We don't have that many in stock!

Product Info

  • Cortex M4 on a 1.4 by 0.7 inch board.
  • Arduino IDE compatible.
  • Power and program using a USB Micro-B Cable.
  • Runs at 3.3v and all digital inputs are 5v tolerant.
  • 34 digital I/O pins (21 analog inputs).
  • 256K of Flash and 64K of RAM.

More Images

Hackaday Review

If you're interested in electronics and micro-controllers you've surely heard about the Arduino. You can't browse DIY electronics without encountering a project that uses one. However, a surprising few have heard about the Teensy, which is odd considering just how cost-effective, powerful, and easy to use these little boards are.

The Teensy range is designed and developed by consummate hacker Paul Stoffregen who has done a phenomenal job building the boards and ecosystem that surrounds them. The latest in the range which we present here is the Teensy 3.2, which is a 100% compatible replacement for the Teensy 3.1. It sports a powerful 32bit Cortex M4 processor running at 72Mhz in a package a little smaller than a stick of gum. Don't let the size fool you. It manages to provide a whopping 34 digital IO pins, 21 of which can work as analog inputs and 12 include PWM capability. That's a lot of processing power and extensibility in a very small board.

For those of us just dipping our toes into the world of micro-controllers, Paul has released the extremely handy Teensyduino plugin which brings all this power to the Arduino IDE. You can develop using all the same code you used for the Arduino, while taking advantage of the massively increased performance as well as some unique features that make writing good code a whole lot easier.

Of course, no hacker can rest on their laurels for long, so Paul has been working feverishly on an Audio Adapter Board for the Teensy platform. This fantastic little board makes generating audio on a micro-controller a breeze. Coupled with the Teensy Audio Library you can add 16-bit CD quality audio to any project in minutes. This isn't the beeps and grinds associated with low-horsepower boards. We knew what to expect and were still astonished by the quality heard during our own testing.

The audio board can stream sound files from a micro SD card, as well as perform audio synthesis, effects, analysis, mixing, recording and it can do most of this without blocking the code running on your micro-controller. There's even a graphical interface which lets you design your audio system and then export Arduino code to get it all setup for you. This really is great stuff and is going to make a whole host of audio based projects a lot easier to make.

Don't hem and haw, make the leap right now to the Teensy 3.2 and pickup an Audio Adapter board while you're at it. You will not regret it. On pretty much every metric there is just no comparison to other Arduino platforms.



  • 32 bit Arm Cortex-M4 MX20DX256.
  • 72Mhz (Overclockable to 96mhz!).
  • 34 digital IO pins.
  • 21 analog inputs.
  • 12 PWM capable pins.
  • 3x Serial UART.
  • 2x I2C.
  • 1x SPI.

Not Included

  • Pin headers - you'll want a set if you want to use this on a breadboard.

Helpful Information

Pay Securely With...