Arduino UNO R3 Compatible MicrocontrollerAdditional Notes:* Full featured Arduino UNO-R3 compatiable controller* Accepts all Plug-in modules for Arduino controller. The UNO is one of the most widely used microcontrollers for experimenters, hobbists, robotists etc.Information & Freeware available through www.arduino.cc.en and others on-line.* Processor: 16 MHz ATmega328* Power: 5VDC (Recommend 7-12VDC)* Digital I/O: 14 with PWM available on 6* Analog Input: 6* Memory: Flash: 32K-.5K for bootloader* SRAM: 2K* EEPROM: 1K* .1in. Pitch female & male headers for direct connection to functions including I2C port.* USB port: Type B female* Power Port: 5.5mm X 2.1mm Jack* L: 3 O/A W: 2-1/8 H: 3/8MPJA33310 MP