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Arduino Pro ATmega2560-16AU Development Board with USB

SKU 25608874

Are you looking for a compact form of the powerful Arduino Mega 2560 development board? Then check out this Arduino Pro ATmega2560-16AU with USB Development Board from PMD Way.

It uses the ATmega2560-16AU microcontroller and runs the Arduino bootloader. This model runs at 5V or 3.3V and at a speed of 16 MHz. 

The onboard microUSB socket is configured with a CH340 USB-serial interface, so you can easily upload new sketches or use the serial monitor without any extra hardware.


This board has 86 I/O - 69 digital I/O pins and 17 analog inputs (YES, more pins unlike standard Arduino Mega 2560 with 70 I/O), 4 UARTs (hardware serial ports), one I2C and one SPI interface, and a large 256KB for your sketches.

You can power the board via USB or direct connection. The board has a resettable fuse that protects your computer's USB ports from shorts and overcurrent.

If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed. External power can come either from a DC adapter or battery. The board can operate on an external supply: 

  • TO VIN: of 7 to 9 volts.

  • TO 5V: 5V. (Logic level will be 5V, switch to 5V)

  • TO 3.3V: 3.3V. (Logic level will be 3.3V, switch to 3.3V)

  • TO VCC-IOREF: 5V (Logic level will be 3.3V) or 3.3V (Logic level will be 3.3V). In this case, power stabilizers will be disconnected and the board will use small power.  

If you supply VIN with less than 6.4V, the 5V pin may supply less than five volts and the board may become unstable. If using more than 9~12V to VIN, the voltage regulator may overheat and damage the board. Thus the recommended range is 7~9 volts.

To change the operating voltage:

Board ships by default in 3.3V configuration (see below). To change to 5V, you need to bridge the 5V pads instead of the 3.3V pads with the 0 Ohm resistor (or a blob of solder):

Compact Arduino Pro ATmega2560-16AU Development Board with USB from PMD Way with free delivery worldwide

More information:

Use the options menu to select the headers if required and their type.