Features:

32 bit ARM Cortex-M4 72 MHz CPU (M4 = DSP extensions)
256K Flash Memory, 64K RAM, 2K EEPROM
21 High Resolution Analog Inputs (13 bits usable, 16 bit hardware)
34 Digital I/O Pins (5V tolerance on Digital Inputs)
12 PWM outputs
7 Timers for intervals/delays, separate from PWM
USB with dedicated DMA memory transfers
3 UARTs (serial ports)
SPI, I2C, I2S,CAN Bus, IR modulator
I2S (for high quality audio interface)
Real Time Clock (with user-added 32.768 crystal and battery)
16 DMA channels (separate from USB)
Touch Sensor Inputs

• The Teensy is a breadboard-friendly development board with loads of features in a, well, teensy package. Each Teensy 3.2 comes pre-flashed with a bootloader so you can program it using the on-board USB connection: No external programmer needed! You can program for the Teensy in your favorite program editor using C or you can install the Teensyduino add-on for the Arduino IDE and write Arduino sketches for Teensy!
• 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 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 I2S digital audio interface!
• All of this functionality is jammed into a 1.4 x 0.7 inch board with all headers on a 0.1" grid so you can slap in on a breadboard and get to work! The Teensy 3.2 adds a more powerful 3.3 volt regulator, with the ability to directly power an ESP8266 Wifi, WIZ820io Ethernet, and other 3.3V add-on boards that require a little more power. Additionally, if it is used within the Teensy 3.1 limits of operation, the Teensy 3.2 and 3.1 are interchangeable!
• Dimensions: 1.4 x 0.7" (~35 x 18 mm)

The Teensy is a breadboard-friendly development board with loads of features in a, well, teensy package. Each Teensy 3.2 comes pre-flashed with a bootloader so you can program it using the on-board USB connection: No external programmer needed! You can program for the Teensy in your favorite program editor using C or you can install the Teensyduino add-on for the Arduino IDE and write Arduino sketches for Teensy!Royfee