Arduino UNO R3 Board high quality-compatible with Arduino

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  • Micro-controller : ATmega328.
  • Operating Voltage : 5V.
  • Input Voltage (recommended) : 7-12V.
  • Digital I/O Pins : 14 (of which 6 provide PWM output).
  • Analog Input Pins : 6.



Arduino Uno is a microcontroller board based on the ATmega328P (datasheet), and It has 14 digital input/output pins (of which 6 can use 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; therefore Arduino Uno can simple can connect it to a pc with a USB cable or power it with an AC-to-DC adapter or battery to induce started. So also You can tinker with your UNO without worrying too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.

“Uno” meant one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards and the reference model for the Arduino platform;

Arduino UNO – R3 Features:

  • Microcontroller ATmega328 (PDIP)
  • 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

Arduino UNO – R3 Dimensions:

  • Length: 2.7″ (68.6 mm)
  • Width: 2.1″ (53.3 mm)

Arduino UNO – R3 Resources:

Additional information

Weight 0.025 kg
Dimensions 6.86 × 5.33 cm
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