⭐ DESCRIPTION
The Arduino Uno R3 Compatible Board is a cost-effective and reliable microcontroller board featuring the ATmega328P chip and the CH340G USB-to-Serial converter. Functionally similar to the official Arduino Uno, this board provides the same pin layout, performance, and versatility—making it ideal for students, hobbyists, and prototype developers.
It includes 14 digital I/O pins, 6 analog inputs, 6 PWM outputs, a 16 MHz clock, USB Type-B interface (via CH340G driver), and all necessary components to start building electronics projects. Simply connect it to your computer using a USB cable, install the CH340 driver, and you’re ready to code using the Arduino IDE.
This board offers excellent value for robotics, automation, IoT, and educational applications, while maintaining compatibility with sensors, modules, and shields designed for the Arduino ecosystem.
🔧 SPECIFICATIONS
Microcontroller & Communication
Microcontroller: ATmega328P
USB-to-Serial Chip: CH340G
Clock Speed: 16 MHz
Operating Voltage & Power
Operating Voltage: 5V
Input Voltage (Recommended): 7–12V
Input Voltage (Limit): 6–20V
DC Current per I/O Pin: 20 mA
DC Current on 3.3V Pin: 50 mA
I/O Pins
Digital I/O Pins: 14
PWM Pins: 6
Analog Input Pins: 6
LED_BUILTIN: Pin 13
Memory
Flash Memory: 32 KB (0.5 KB used by bootloader)
SRAM: 2 KB
EEPROM: 1 KB
Physical
Board Dimensions: 68.6 mm × 53.4 mm
Weight: ~25 g