1.2 Adding required Libraries
Now we need to add all the Libraries, that we need for this Project, to the Arduino IDE.
We start with Downloading all the Libraries we need.
Save them all to a Folder of your Choice. !!Important: Do not extract them!!
In Arduino IDE Click on Sketch -> Include Library -> Add .ZIP Library...
In the newly opened Filebrowser Window, go to the Folder you saved the Downloaded Libraries to. Select the first one e.g. Wifimanager-0.x.zip and click on open. If the Import was Successfully you should see a Message within the green bar above the Console. (It may take some time Depending on how fast your Dev environment is.)
Repeat this step for all other Libraries we have downloaded.
Continue with Installing the CH341SER Driver