Arduino Uno

Arduino Uno Rev3

Overwiew
Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), 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 worrying too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.



Arduino Uno Rev3

“Uno” means 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of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards.

Technical specifications

 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
 LED_BUILTIN
  13
 Length
 68.6 mm
 Width
 53.4 mm 
 Weight
  25 g




Arduino Uno Pinout diagram

Arduino Uno Pinout diagram

Read more

The Arduino UNO board layout———->

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