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Arduino UNO Rev3 Development Board

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Arduino UNO Rev3 Development Board overview

The Arduino UNO Rev3 Development Board is an electronic component. Main ratings: Microcontroller ATmega328; Operating Voltage 5V; Input Voltage 7-12V; Input Voltage 6-20V. This page brings together the Arduino UNO Rev3 Development Board pinout and key specifications, with the full datasheet PDF to preview below or download.

The Arduino Uno R3 is a microcontroller board based on a removable, dual-inline-package (DIP) ATmega328 AVR microcontroller. The board has 20 digital input/output pins (with the allocation of 6 pins that can be used as PWM outputs and 6 pins that can be used as analog inputs). Arduino Uno Rev3 allows direct PC to Dev. board interface ability, meaning Programs can be loaded onto it from the easy-to-use Arduino computer program. The board has an extensive support community, which makes it a very easy way to get started working with embedded electronics.

The Arduino UNO Rev3 board comprises of 14-digital I/O pins. Out of these, 6-pins can be utilized as PWM outputs. The board also includes 6 Analog inputs, a USB connection, quartz crystal-16 MHz, a power jack, a USB connection, a resonator-16Mhz, a power jack, an ICSP header an RST button.

Key specifications

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

Datasheet

a000066-datasheet.pdf
Format PDFSize 431 KBLanguage EN
Third-party / unverified source

Arduino UNO Rev3 Development Board features

  • 8-bit AVR® RISC-based microcontroller
  • Power On Reset (POR)
  • Brown Out Detection (BOD)
  • 2x 8-bit Timer/Counter with a dedicated period register and compare channels
  • 1x 16-bit Timer/Counter with a dedicated period register, input capture, and compare channels
  • 1x USART with fractional baud rate generator and start-of-frame detection
  • 1x controller/peripheral Serial Peripheral Interface (SPI)
  • 1x Dual mode controller/peripheral I2C
  • 1x Analog Comparator (AC) with a scalable reference input
  • Watchdog Timer with separate on-chip oscillator
  • Six PWM channels
  • Interrupt and wake up on pin change
  • debugWIRE interface for on-chip debugging and programming

Arduino UNO Rev3 Development Board pinout

NameDescription
Power PinsVin: Input voltage to Arduino when using an external power source.5V: Regulated power supply used to power the microcontroller and other components on the board.3.3V: 3.3V supply generated by the onboard voltage regulator. The maximum current draw is 50mA.GND: ground pins.
RSTResets the microcontroller.
Analog PinsUsed to provide analog input in the range of 0-5V
Input/Output PinsCan be used as input or output pins.
Serial PinUsed to receive and transmit TTL serial data.
External InterruptsTo trigger an interrupt.
PWMProvides 8-bit PWM output.
SPIUsed for SPI communication.
Inbuilt LEDTo turn on the inbuilt LED.
TWIUsed for TWI communication.
AREFTo provide a reference voltage for input voltage.

Arduino UNO Rev3 Development Board specifications

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 of which 0.5 KB is used by the bootloader
SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)
Clock Speed 16 MHz

Arduino UNO Rev3 Development Board applications

  • Home Automation
  • Public Utility Automation
  • Internet of things designs applications

Arduino UNO Rev3 Development Board datasheet PDF preview

PDF · 431 KB

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