Hi guys, I have been trying to code using Leap Motion and Arduino to control servo and led using Processing 3.5.4, (both codes attached below), and when I run the processing code, I got black screen. Did I miss anything? I got no error whatsoever when running the code (I think the codes are working …

[image] roboarm: if (Serial.available() == '\n') { // Check if there is a new message That does not check for a new message. See Serial Basics

[image] roboarm: if (Serial.available() == '\n') You need to check what available returns. (I mean, it will eventually return that value, but...)

Arduino and Leap Motion - Black Screen

Grumpy_Mike March 3, 2022, 8:33am 2

That does not check for a new message.
See
Serial Basics

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