This is Arduino UNO R3 development board based on Atmel’s DIP ATmega328P 8-bit microcontroller with 32KB of Flash memory and 2KB of RAM. With the power of 16 MHz clock speed and the facility for directly connect to any computer via an USB cable, Arduino UNO can be used for learning how sensors and actuators work or for your rapid prototyping electronics projects.

Weight 30 g
Dimensions 68.6 × 53.4 × 20 cm
Main Chip


Operating Voltage


Input Voltage


Input Voltage (limit)

6 ? 20V

Digital I/O Pins

14 (of which 6 provide PWM output)

Analog Input Pins


PWM Digital I/O Pins


Flash Memory

32 KB (ATmega328) of which 0.5 KB used by bootloader


2 KB (ATmega328P)

Clock Speed

16 MHZ


1 KB (ATmega328P)

DC Current per I/O Pins

20 mA

DC Current for 3.3V Pin

50 mA


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