Teensy 3.1

Product Features 32-bit ARM Cortex-M4 72 MHz CPU (M4 = DSP Extension) 256K flash memory, 64K RAM, 2K EEPROM 21 high-resolution analog inputs (13 available, 16-bit hardware) 34 digital input / output pins (5V tolerance of digital input) 12 PWM outputs product description Description: Teensy is a breadboard friendly development board with a host of features, including teensy. Teensy 3.1 brings a 32-bit ARM Cortex microprocessor so you can do some serious numerical calculations. Teensy 3.1 has a boot loader preinstalled so you can program using the on-board USB connection: No external programmer required! You can use the C program to edit Teensy in your favorite program editor, install the Teensyduino Arduino IDE add-on and write Teensys Arduino sketches! Processors on Teensy can also access USB and emulate any USB device you need, making it ideal for USB-MIDI and other HID projects. The 32-bit processor also provides the table with additional features such as multi-channel direct memory access, multiple high-resolution ADCs and an I2S digital audio interface! There are four separate interval timer plus a delay timer! Oh, all pins have interrupt capability. In addition, it can provide 3.3V system voltage of other devices up to 100mA. All of these features are stuck on a 1.4 x 0.7 inch board with all the connectors on a 0.1 inch grid so you can slap it on the breadboard and get to work! In addition, Teensy has more memory (64K, four times more than Teensy 3.0) and 256kb of flash memory! Teensy 3.1 now has 5V tolerant digital inputs, but all analog pins are still only 3.3V. feature: 7 Interval / delay timer, separate from PWM USB with dedicated DMA memory transfer 3 UARTs (serial port) SPI, I2C, I2S, CAN bus, IR modulator I2S (for high-quality audio interface) Real-time clock (users add 32.768 crystal and battery) 4 common DMA channels (independent of USB) Touch the sensor input