Arduino MEGA 2560 R3 with CH340 Chip

Arduino Mega 2560 R3 Clone (CH340)

The Arduino Mega 2560 R3 Clone is an advanced Arduino development board based on the powerful ATmega2560 microcontroller. It offers significantly more input/output pins and features than entry-level Arduino boards like the Uno, making it ideal for complex projects such as 3D printers, robotics, and automation systems.

This clone version uses the CH340 USB-to-serial converter for reliable and cost-effective connectivity, compatible with the Arduino IDE.

Features

• Microcontroller: ATmega2560

• Operating Voltage: 5V

• Input Voltage (Recommended): 7-12V

• Input Voltage (Limit): 6-20V

• Digital I/O Pins: 54 (15 PWM outputs)

• Analog Inputs: 16

• DC Current per I/O Pin: 20 mA

• DC Current for 3.3V Pin: 50 mA

• Flash Memory: 256 KB (8 KB used by bootloader)

• SRAM: 8 KB

• EEPROM: 4 KB

• Clock Speed: 16 MHz

• Communication: 4 UART (hardware serial ports)

• USB Interface: CH340 USB-to-serial converter (faster and more memory efficient than older 8U2)

• Size: 101.52 mm x 53.3 mm

• Weight: 37 g

Advantages

• Large number of I/O pins for complex interfacing

• Compatible with all Arduino shields designed for Duemilanove and Diecimila

• Supports multiple serial ports for advanced communication

• Robust power supply options (USB, external adapter, battery) with automatic selection

• Open-source platform with extensive Arduino library support

Power Considerations

• Can be powered by USB or external source (6-20V)

• Recommended external power supply is 7-12V for optimal performance

• Using less than 7V can cause unstable 5V output

• Using more than 12V risks overheating the voltage regulator

Applications

• 3D printers and CNC machines

• Robotics and automation systems

• Data logging and sensor arrays

• Multi-device communication projects

• Large-scale embedded systems

Package Includes

• 1 x Arduino Mega 2560 R3 Clone (CH340) Board