1pcs Development Programmer Board for ATtiny13A & 1pcs development board The ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (ofcourse a bit less powerful). With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this board is a great way to jump into microcontroller electronics. Support for the Arduino IDE 1.0+ (OSX/Win/Linux) Power via USB or External Source CJMCU-ATTINY85-20PU DIP-8 pin DIP pluggable ATMEL CJMCU-ATtiny13A / ATtiny25 / ATtiny45 / ATtiny85 pluggable Development Programming Board Development board supporting chip:ATtiny13A / ATtiny25 / ATtiny45 / ATtiny85 etc size:26 x 18.5mm/1.02 x 0.73 inch Onboard 5V Regulator Built-in USB 6 I/O Pins 8k Flash Memory (about 6k after bootloader) I2C and SPI (vis USI) PWM on 3 pins (more possible with Software PWM) ADC on 4 pins Power LED and Test/Status LED Colour: Black Material: Plastic + Metal & metal Package Contents: 1 x Development Programmer Board for ATtiny13A 1 x development board Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.