So I am running into this issue with my Processing code where I am getting null pointer exceptions whenever it runs over the port.write() line. Just for some background, what I am trying to do is have the Processing code process the controller input from my Xbox One controller and make it into code…

Null Pointer Exception with Arduino Communication

jafal August 1, 2021, 4:52pm 5

sure it receive serial data if not how Arduino IDE upload sketch to Arduino

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