Description:

The ATmel MCU ATMEGA16U2 MEGA 2560 R3 Improved Version CH340G Board is a micro-controller board base on the ATmega2560. It has a USB host interface to connect with Android based phones, based on the MAX3421e IC.

It has 54 digital input/output pins (of which 15 can be used as PWM outputs); 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator; a USB connection, a power jack, an ICSP header, and a reset button. The MEGA ADK is base on the Mega 2560. Similar to the Mega 2560 and Uno, it features an ATmega8U2 program as a USB-to-serial converter Revision 3 of the Mega ADK board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU (Device Firmware Upgrade) mode.

Arduino Mega 2560 with CH340  Specification:

• Model Type: Arduino MEGA 2560
• Microcontroller Chip: ATmega2560
• Operating Voltage: 5
• Input Voltage (Recommended): 7V to 12V
• Input Voltage (limit): 6V-20V
• Analog I/O Pins: 16
• Digital I/O Pins: 54 (of which 15 provide PWM output)
• Clock Speed: 16 MHz
• Flash Memory: 256 KB of which 8 KB used by bootloader
• SRAM: 8 KB
• EEPROM: 4 KB
• DC Current for 3.3V Pin: 50 mA
• DC Current per I/O Pin: 40 mA
• Weight (gm): 34

This is the 3rd (most recent) revision with the following adjustments:

• Atmega 16U2 replaces 8U2 (replaced by CH340).
• More powerful RESET circuit.
• Addition of SDA and SCL pins on the AREF pin and 2 new pins on the RESET pin, namely the IOREF pin, allowing the shields to adapt to the voltage of the card. In the future, the shields will be compatible with the 5v and 3.3v versions. The 2nd pin is not connected and is reserved for future updates.

This arduino is a clone, which means that this sign is not built in the original factory. The only difference between the original and the clones is that these Arduinos are cheaper. All components and circuits are also identical (except that on this version the USB driver has been replaced by the CH340).

Features:

• Microcontroller Chip: ATmega2560
• Atmega 16U2 replaces 8U2 (replaced by CH340)
• Operating Voltage: 5
• Analog I/O Pins: 16
• Digital I/O Pins: 54 (of which 15 provide PWM output)
• Flash Memory: 256 KB of which 8 KB used by bootloader
• SRAM: 8 KB
• EEPROM: 4 KB

Kit include:

1 x 

Documents:

• CH340Driver Download
• PDF Download