Arduino Uno Rev3
The Arduino Uno Rev3 is a versatile and user-friendly development board based on the ATmega328P microcontroller. It serves as an ideal starting point for beginners in electronics and coding, providing a robust platform for learning and prototyping. Featuring 14 digital I/O pins, 6 analog inputs, and multiple communication interfaces, the Uno Rev3 supports a wide range of applications—from simple LED blinkers to complex IoT projects. Its open-source design and extensive community support make it a top choice for hobbyists, educators, and professionals alike.
Features
- Based on ATmega328P microcontroller.
- 14 digital I/O pins (6 PWM outputs).
- 6 analog input pins for sensor interfacing.
- Operating voltage: 5V with 7–12V recommended input.
- USB Type-B connection for programming and power.
- 16 MHz ceramic resonator for stable clock speed.
- 32 KB Flash memory (0.5 KB used by bootloader).
- 2 KB SRAM and 1 KB EEPROM.
- Reset button for easy restarting.
- Compatible with Arduino IDE and shields.
- Plug-and-play via USB for quick prototyping.
- Open-source hardware with strong community support.
Specifications
| Specification | Value |
|---|---|
| Microcontroller | ATmega328P |
| USB to Serial Converter | ATmega16U2 |
| Digital I/O Pins | 14 (6 with PWM capability) |
| Analog Input Pins | 6 |
| Flash Memory | 32 KB (0.5 KB used by bootloader) |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Clock Speed | 16 MHz |
| Operating Voltage | 5V |
| Input Voltage | 7-12V |
| DC Current per I/O Pin | 20 mA |
| DC Current for 3.3V Pin | 50 mA |
| Power Consumption | 50-100 mA |
| Operating Temperature | -40°C to 85°C |
| Dimensions | 68.6 mm x 53.4 mm |
Pin Layout
Applications
- Learning Electronics and Programming: Perfect for beginners to grasp fundamental concepts.
- Prototyping Electronic Circuits: Test and develop new ideas quickly.
- Interactive Projects: Use sensors and actuators for dynamic applications.
- IoT Devices: Pair with shields for internet connectivity.
- Robotics and Automation: Control motors and systems efficiently.
- Data Logging and Monitoring: Record sensor data over time.






Abdullah Mohamed Ahmed gawzy –
It is a good development board and good for people or students who start to learn programming really good price thank you makers for the best service ever
hayl (verified owner) –
best development board with good price for china clone
works good for educational , small projects even industrial