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 and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language.

Based on a 32 bit ARM chip, Teensy 3.0 aims to greatly increase the computing capability and peripheral features, but maintain the same easy-to-use platform that has made Teensy 2.0 so successful.

Please note: Teensy 3.0 and 2.0 are not official Arduino-brand products. Although the Teensyduino IDE has been adapted so that many simple Arduino projects will work with the Teensy, there will still be a lot of libraries and shields that will not work with this device! If you're new to microcontrollers, we suggest going with a classic Arduino UNO since all Arduino projects, examples and libraries will work with it.

Technical Specifications:

• 32 bit ARM Cortex-M4 48 MHz CPU (M4 = DSP extensions) Here is Freescale's reference manual for the chip (warning 1227 pages) as well as the Datasheet and User Guide!
• 128K Flash Memory, 16K RAM, 2K EEPROM
• 14* High Resolution Analog Inputs (13 bits usable, 16 bit hardware)
• 34* Digital I/O Pins (10 shared with analog)
• 10 PWM outputs
• 8 Timers for intervals/delays, separate from PWM
• USB with dedicated DMA memory transfers
• 3 UARTs (serial ports)
• SPI, I2C, I2S, IR modulator
• I2S (for high quality audio interface)
• Real Time Clock (with user-added 32.768 crystal and battery)
• 4 general purpose DMA channels (separate from USB)
• Touch Sensor Inputs

Information, documentation and specs are on the Teensy site. Please check it out for more details!