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


4 in stock

SKU: SKU_AS_0012 Categories: , ,


Arduino Uno R3 is based on AVR atmega 328 microcontroller and comes in removable DIP package, It has 20 digital input/output pins (of which 6 can be used as PWM outputs and 6 can be used as analog inputs).  Programs can be uploaded directly from Arduino IDE through USB  port.

  • Atmega328-PU Microcontroller
  • 14 Digital Pins
  • 6 Analog Pins
  • 6PWM outputs via PWM pins

The Uno R3 differs from all previous boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features an ATmega16U2 programmed as a USB-to-serial converter. This microcontroller has its own bootloader allowing Advanced users to program it.


*Images are for representative purposes only. May slightly differ in color and other physical aspects.


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