Lab 5 – Serial Communication

I struggled in the beginning with this lab as I had an “undefined” error for a while. It turned out that the error was because I was using Safari and it worked only once I used Chrome.

Below is the Arduino code I used in this lab. I used two potentiometers (one a slider and one not) to communicate with P5. I created a white flower on a yellow background and I made it so that one of the potentiometers adjusts the X coordinate of the flower and the other adjusts the Y coordinate. It reads the values it receives from the two potentiometers and the P5 code parses this and reads the values which it then uses as the coordinates for the flower. Then the Arduino code takes an incoming value from the P5 code (the mouse clicked or not). Once the mouse is clicked it prints which LED it will light up. Every other click corresponds to one LED and they switch off between clicks.

	int slide = A0;
	int pot = A1;
	int LED1 = 2;
	int LED2 = 3;
	int incomingVal = 0;

	void setup() {
	Serial.begin(9600);
	pinMode(LED1, OUTPUT);
	pinMode(LED2, OUTPUT);
	pinMode(pot, INPUT);
	pinMode(slide, INPUT);
	}

	void loop() {
	int slideVal = analogRead(slide);
	int potVal = analogRead(pot);
	int mappedSlideVal = map(slideVal, 0, 1023, 0, 400);
	int mappedPotVal = map(potVal, 0, 1023, 0, 300);
	Serial.print(mappedSlideVal);
	Serial.print(",");
	Serial.println(mappedPotVal);


	if (Serial.available()) {
	int incomingVal = Serial.read();

	if (incomingVal == 15) {
	digitalWrite(LED1, HIGH);
	delay(500);
	digitalWrite(LED1, LOW);
	}
	if (incomingVal == 20) {
	digitalWrite(LED2, HIGH);
	delay(500);
	digitalWrite(LED2, LOW);
	}
	}
	}