Arduino uno

Arduino Uno is a microcontroller board based on the ATmega328P . It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.. You can tinker with your UNO without worring too much about doing something wrong,

Technical Specification

• Microcontroller ATmega328P
• Operating Voltage 5V
• Input Voltage (recommended) 7-12V
• Input Voltage (limit) 6-20V
• Digital I/O Pins 14 (of which 6 provide PWM output)
• PWM Digital I/O Pins 6
• Analog Input Pins 6
• DC Current per I/O Pin 20 mA
• DC Current for 3.3V Pin 50 mA
• Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader
• SRAM 2 KB (ATmega328P)
• EEPROM 1 KB (ATmega328P)
• Clock Speed 16 MHz