Control servos using sliders

Processing Electronics (Arduino, etc.)
7

Hello @jeffmorris1956,

Your posted code did not seem to work for me and sharing my exploration.

I modified your code and used the Arduino code from my previous post to echo back data:

void setup() 
  {
  size(1200,800);
  myPort = new Serial(this, "COM7", 9600);
  delay(1000);          // This did the trick!
  println("Ready!");
  //myPort.bufferUntil('\n');
  cp5 = new ControlP5(this);
  createMessageBox();
  }

void draw() 
  {
  background(0);
  if(myPort.available() > 0)
    {
    int val = myPort.read();
    println("Rx: ", val);
    }
  }

Your events:

myPort.write(val01);

myPort.write(val02);

It only worked on my Arduino Mega 2560 R3 once I added the delay:

delay(1000); // This did the trick!

Related:
https://discourse.processing.org/t/processing-to-arduino-serial-library-example/11143

The correct servo part you can work on… lots of suggestions and resources out there for that.

:)