The chip ELEGOO MEGA R3 board is Atmega+2560-16au and 16u2, same with the official version. The ELEGOO UNO R3 BOARD now uses an 16U2 instead of the
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The Mega is 100% compatible with Arduino IDE and most shields designed for the Arduino mega R3,RoHS Compliant The chip is Atmega+2560-16au and 16u2, same with the official version. Improved and expert version: 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.
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