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Arduino UNO R3 ATMega328P USB Compatible Development Board is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analogue inputs, a 16 MHz crystal oscillator, 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.
This upgraded model is completely compatible with original Arduino UNO.

Arduino UNO R3 ATMega328P USB Compatible Development Board Specification

• Microcontroller: ATmega328P
• Operating Voltage: 5V
• Input Voltage (recommended): 7-12V
• Input Voltage (limits): 6-20V
• Digital I/O Pins: 14 (of which 6 provide PWM output)
• Analogue Input Pins: 6
• DC Current per I/O Pin: 40 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

Upgraded revision featuring stronger reset circuit and CH431A USB

Use only if you are having problems
USB Driver Install Steps:

1. USB driver download (Windows only)
2. Click Here to Download
3. Install the downloaded USB Driver, then plug UNO development board, the driver will automatically install
4. Select the new added COM port number which can be found in the Device Manager Panel;
5. Now you can run the Arduino IDE and communicate with the board.

Contents:
· 1x UNO R3 Arduino Compatible Board
· 1x pin header