Datasheet

The Teensy is a breadboard-friendly development board with loads of features in a tiny
package. Each Teensy 3.5 comes with headers already attached and pre-flashed with a
bootloader so you can program it using the onboard USB connection: no external
programmer needed! You can program for the Teensy in your favourite program editor
using C or you can install the Teensyduino add-on for the Arduino IDE and write Arduino
sketches for it!
The processor on the Teensy also has access to the USB and can emulate any kind of
USB device you need it to be, making it great for USB-MIDI and other HID projects. The
32-bit, 120MHz processor brings a few other features to the table as well, such as
multiple channels of Direct Memory Access, several high-resolution ADCs and even an
I
2
S digital audio interface! There are also four separate interval timers, plus a delay timer!
Oh yeah, and all digital pins have interrupt capability and are 5V tolerant.
All of this functionality is jammed into a 62.3mm x 18.0mm board with all solder points on
a 0.1" grid so you can slap it on a breadboard and get to work! The Teensy 3.5 (as well