UNO R3 Compatible CH340 Development Board

UNO R3 Compatible CH340 Development Board

This UNO-compatible development board is designed for makers, students, and educators who want the full power of an Arduino UNO at a lower cost. Built around the ATmega328P microcontroller and the CH340 USB-to-Serial converter, this board works seamlessly with the Arduino IDE and is perfect for all kinds of DIY electronics projects.

UNO R3 Compatible Development Board Key Features

• UNO R3-compatible layout and pin headers
• Uses CH340 USB-to-Serial chip
• Fully supported by Arduino IDE
• Affordable alternative to official Arduino UNO
• Digital and analog I/O pins ready for sensors, modules, and shields
• Compact and ideal for breadboarding and prototyping
• Ideal for schools, STEM kits, and robotics projects

UNO R3 Compatible Development Board Specifications

• Microcontroller: ATmega328P
• Operating Voltage: 5VDC
• Input Voltage (recommended): 7-12V through DC jack
• Input Voltage (limits): 6-20V through DC jack
• 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 1 KB used by the bootloader
• SRAM: 2 KB
• EEPROM: 1 KB
• Clock Speed: 16 MHz
• CH340 as USB to UART IC
• USB B type socket for USB power and interface

What’s Included

• 1 x Arduino UNO Compatible board
• 1 x Straight Pin Header (Male) 1×40 Ways