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The video describes the steps for installing evive Scratch extensions in mBlock. It also shows how to work in Scratch Mode and Arduino Mode.
Under Scratch mode which is default mode when mBlock start, mBlock could program evive through USB serial port, evive is running a program could communicate with mBlock, and evive could interact with Stage and create more interesting projects.
Under Arduino mode,the instruction blocks will be transfer to Arduino C++ into Arduino IDe, and user could modify code in Arduino IDe, and then upload the code into evive. In that case, evive is running offline and it can not interact with Scratch’s stage.
Arduino IDE: https://www.arduino.cc/en/main/software
mBlock: http://www.mblock.cc/download/
You can download Scratch extension from here: https://github.com/evivetoolkit/eviveScratchExtensions
Getting Started with Scratch: http://learn.evive.cc/index.html?t=ScratchTutorial
To learn more about evive visit here: http://evive.cc/