I continue teaching IOT with Firebase through problem solving. In this video I'll show step by step guide to create Android App using Android studio for controlling LED which is connected to Arduino NodeMCU.
I think learning through doing is the best and the problems will keep getting more complex. The code follows the video below to help.
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First set the internet permission for our app for which need to add this code after
After setting the permission we need to create layout for our application so let's check out XML code.
Now, at last here is our java code i.e Main_Activity.