Arduino Mega CH340

The Arduino Mega CH340 is an Arduino Mega 2560 R3 compatible development board built around the ATmega2560 microcontroller, with a CH340 USB-to-serial chip in place of the original ATmega16U2. It gives you 54 digital I/O pins, 16 analog inputs and 4 hardware serial ports, so it suits projects that outgrow the Arduino Uno, such as 3D printers, CNC machines, robots and multi-sensor data loggers. It is programmed with the Arduino IDE and fits standard Mega shields.Arduino Mega CH340 Specifications Microcontroller: ATmega2560 USB-to-serial chip: CH340 Operating voltage: 5 V Input voltage (recommended): 7–12 V Digital I/O pins: 54 (15 with PWM) Analog input pins: 16 Hardware serial ports (UART): 4 Flash memory: 256 KB (8 KB used by the bootloader) SRAM: 8 KB EEPROM: 4 KB Clock speed: 16 MHz Arduino Mega CH340 Applications 3D printer and CNC controllers with a RAMPS 1.4 shield Robots with many motors, servos and sensors Home automation and IoT projects Data logging from several sensors at once STEM education, school and university labs What's in the Box1 × Arduino Mega CH340 development boardTip: Windows and macOS may need the CH340 driver installed before the board shows up as a COM port. In the Arduino IDE, select Arduino Mega or Mega 2560 as the board.