Compatibility and
Compliance: Mega is compatible with Arduino IDE, most shields are designed for Arduino Mega R3, and it complies with RoHS standards. The chips are Atmega+2560 - 16au and 16u2, same as the official version.
^^ Pin Arrangement Upgrade: Improved and professional version 1.0 features an upgraded pin arrangement.
^^ Reset Circuit Enhancement: It has a stronger reset circuit and uses a 5.5 * 2.1 mm DC barrel jack (compatible with 5.5 * 2.5 mm DC barrel jacks).
^^ Easy-to-Use Setup: It contains everything needed to support the microcontroller.
^^ Shield Compatibility: Shields are designed to work well with the Mega board, ensuring seamless integration for various projects and future - proofing for different voltage-based AVR boards.