Arduino Uno Rev3 Microcontroller Board (A000066)
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Description
The Arduino Uno Rev3 is a versatile microcontroller board powered by the ATmega328 processor. It provides an accessible hardware platform for prototyping electronics projects, interfacing sensors, and controlling actuators. Ideal for students, educators, hobbyists, and makers getting started with coding and robotics.
Versatile I/O and connectivity
The board features 14 digital input/output pins, including 6 that can be used as PWM outputs, along with 6 dedicated analogue inputs. It also includes an ICSP header, a reset button, and a 16 MHz crystal oscillator for precise timing.
Simple setup and power options
It contains everything needed to support the microcontroller out of the box. You can power and program the board directly via a USB connection to a computer, or supply power externally using an AC-to-DC adapter or battery.
On-board memory and processing
Driven by the ATmega328, the board provides 32 KB of flash memory with 0.5 KB utilised by the bootloader, alongside 2 KB of SRAM and 1 KB of EEPROM. It operates reliably at 5 V with a recommended input voltage of 7 to 12 V.
Downloads
Specifications
| Keywords | arduino, uno, atmega328 |
| Device | UNO rev3 |
| Type | UNO | rev3 | Microcontroller | Board |
| 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 | 40mA |
| DC Current for 3.3V Pin | 50mA |
| Flash Memory | 32KB (ATmega328) of which 0.5KB used by bootloader |
| SRAM | 2KB (ATmega328) |
| EEPROM | 1KB (ATmega328) |
| Clock Speed | 16MHz |
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