Arduino UNO Rev3 Development Board
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
Datasheet
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
| Name | Description |
|---|---|
| Power Pins | Vin: 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. |
| RST | Resets the microcontroller. |
| Analog Pins | Used to provide analog input in the range of 0-5V |
| Input/Output Pins | Can be used as input or output pins. |
| Serial Pin | Used to receive and transmit TTL serial data. |
| External Interrupts | To trigger an interrupt. |
| PWM | Provides 8-bit PWM output. |
| SPI | Used for SPI communication. |
| Inbuilt LED | To turn on the inbuilt LED. |
| TWI | Used for TWI communication. |
| AREF | To 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
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