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+USB CABLE Arduino Uno R3 Official Board Rev 3 Sense and Control LEDs Robots Electronics Support Open Source by Buying Genuine Arduino! Version R3 Arduino Uno Arduino is an open sourced electronics prototyping platform. It is aimed at hobbiests, designers and artists - and therefore needs little technical knowledge to perform simple tasks. The Arduino can be programmed to perform a task by connecting it to your PC and using the software found on the official Arduino Website The programing language is simple and many examples can be found via a google search. Once programed your Ardunio will perform the task you've set it until you reprogram it. It can be powered from a 7-12V DC source, this can be from an AC/DC unit or even a battery! The Uno gives you control over 13 digital and 6 analogue inputs or outputs to do with as you wish. What would you do with them? Here are some examples: LED Cube Robot Arm Low Earth Orbit Satelite You might want to start with an easier application though! Technical Spec Microcontroller ATmega328 Operating Voltage 5V Input Voltage (recommended) 7-12V Input Voltage (limits) 6-20V Digital I/O Pins 14 (of which 6 provide PWM output) Analog Input Pins 6 DC Current per I/O Pin 40 mA DC Current for 3.3V Pin 50 mA Flash Memory 32 KB ( ATmega328 ) of which 0.5 KB used by bootloader SRAM 2 KB ( ATmega328 ) EEPROM 1 KB ( ATmega328 ) Clock Speed 16 MHz