Added Tutorial 6

06 Serial Comm and Processing/programs/arduino + processing/process_input/process_input.pde

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+//Program by Jeremy Blum
+//www.jeremyblum.com
+//Uses pot data from arduino to draw stuff
+
+import processing.serial.*;
+Serial port;
+float brightness = 0;
+
+void setup()
+{
+  size(500,500);
+  port = new Serial(this, "COM3", 9600);
+  port.bufferUntil('\n');  
+}
+
+void draw()
+{
+  background(0,0,brightness);
+}
+
+void serialEvent (Serial port)
+{
+  brightness = float(port.readStringUntil('\n'));
+}

06 Serial Comm and Processing/programs/arduino + processing/read_pot_and_send/read_pot_and_send.pde

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+//Program by Jeremy Blum
+//www.jeremyblum.com
+//Send data from a POT over serial to the computer
+
+//Define Pins
+int potPin = 0;
+
+void setup()
+{
+  //Create Serial Object (9600 Baud)
+  Serial.begin(9600);
+}
+
+void loop()
+{
+  int val = map(analogRead(potPin), 0, 1023, 0, 255);
+  Serial.println(val);
+  delay(50);
+
+}

06 Serial Comm and Processing/programs/keyboard_control/keyboard_control.pde

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+//Program by Jeremy Blum
+//www.jeremyblum.com
+//Uses commands from computer to control arduino
+
+int ledPin = 13;
+
+void setup()
+{
+  //Create Serial Object
+  Serial.begin(9600);
+
+  pinMode(ledPin, OUTPUT);
+}
+
+void loop()
+{
+  //Have the arduino wait to receive input
+  while (Serial.available() == 0);
+
+  //Read the Input
+  int val = Serial.read() - '0';
+
+  if (val == 1) 
+  {
+    Serial.println("Led is On"); 
+    digitalWrite(ledPin, HIGH);
+  }
+  else if (val == 0)
+  {
+    Serial.println("Led is Off");
+    digitalWrite(ledPin, LOW);
+  }
+  else
+  {
+    Serial.println("Invalid!");
+  }
+  Serial.flush();
+
+
+}

06 Serial Comm and Processing/programs/keyboard_control_fail/keyboard_control_fail.pde

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+//Program by Jeremy Blum
+//www.jeremyblum.com
+//Uses commands from computer to control arduino
+
+//Define Pins
+int ledPin = 13;
+
+void setup()
+{
+  //Create Serial Object (9600 Baud)
+  Serial.begin(9600);
+
+  pinMode(ledPin, OUTPUT);  
+}
+
+void loop()
+{
+
+
+  //Now we play the waiting game.
+  while (Serial.available() == 0);
+
+  //read the incoming byte
+  int val = Serial.read();
+
+  Serial.println(val);
+
+
+}