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Peanutaoc Mega 2560 R3 REV3 ATmega2560-16AU Board USB Cable Compatible 256 KB of Which 8 KB Used by Bootloader For Arduino Eletronic
by PeanutaocLast refresh Sep/21/2019 03:22 PM
Search term:
ATmega2560-16AU Board, For Arduino Eletronic, Fully Compatible, Mega 2560, Upgrade
Features:
The Mega is compatible with most shields designed for the Duemilanove or Diecimila.
The Mega 2560 is an update to the Mega, which it replaces.
The Mega2560 differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the ATmega16U2 (ATmega8U2 in the revision 1 and revision 2 boards) programmed as a USB-to-serial converter.
Revision 2 of the Mega2560 board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.
Description:
It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
Revision 3 of the board has the following new features:
1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Due that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
Stronger RESET circuit.
Atmega 16U2 replace the 8U2.
Schematic