Week 11 – Serial Communication

For this assignment, I collaborated with Shahd. We based our project on the example codes and made changes as we see appropriate. Shahd did the second exercise and I did the first exercise. We worked together to complete the third exercise.

Video:

Exercise 1:

p5 sketch:

int leftLedPin = 7;
int rightLedPin = 4;


void setup() {
 // Start serial communication so we can send data
 // over the USB connection to our p5js sketch
 Serial.begin(9600);


 // We'll use the builtin LED as a status output.
 // We can't use the serial monitor since the serial connection is
 // used to communicate to p5js and only one application on the computer
 // can use a serial port at once.
 pinMode(LED_BUILTIN, OUTPUT);


 // Outputs on these pins
 pinMode(leftLedPin, OUTPUT);
 pinMode(rightLedPin, OUTPUT);


 // Blink them so we can check the wiring
 digitalWrite(leftLedPin, HIGH);
 digitalWrite(rightLedPin, HIGH);
 delay(200);
 digitalWrite(leftLedPin, LOW);
 digitalWrite(rightLedPin, LOW);






 // start the handshake
  while (Serial.available() <= 0) {
    digitalWrite(LED_BUILTIN, HIGH);  // on/blink while waiting for serial data
    Serial.println("0,0");            // send a starting message
    delay(300);                       // wait 1/3 second
    digitalWrite(LED_BUILTIN, LOW);
    delay(50);
  }
}


void loop() {
 // wait for data from p5 before doing something
 while (Serial.available()) {
   digitalWrite(LED_BUILTIN, HIGH);  // led on while receiving data


   if (Serial.read() == '\n') {


     int sensor = analogRead(A1);  //potentiometer
     Serial.println(sensor);
   }
 }
 digitalWrite(LED_BUILTIN, LOW);
}

Exercise 2:

int leftLedPin = 6;


void setup() {
 // Start serial communication so we can send data
 // over the USB connection to our p5js sketch
 Serial.begin(9600);




 // We'll use the builtin LED as a status output.
 // We can't use the serial monitor since the serial connection is
 // used to communicate to p5js and only one application on the computer
 // can use a serial port at once.
 pinMode(LED_BUILTIN, OUTPUT);


 // Outputs on these pins
 pinMode(leftLedPin, OUTPUT);


 // start the handshake
 while (Serial.available() <= 0) {
   digitalWrite(LED_BUILTIN, HIGH);  // on/blink while waiting for serial data
   Serial.println("0,0");            // send a starting message
   delay(200);                       // wait 1/3 second
   digitalWrite(LED_BUILTIN, LOW);
   delay(200);
 }
}




void loop() {
 // wait for data from p5 before doing something
 while (Serial.available()) {
   digitalWrite(LED_BUILTIN, HIGH);  // led on while receiving data


   int brightness = Serial.parseInt();
   analogWrite(leftLedPin, brightness);
   if (Serial.read() == '\n') {
     Serial.println("0,0");
   }
 }
 digitalWrite(LED_BUILTIN, LOW);
}

Exercise 3:

int leftLedPin = 7;
int rightLedPin = 4;


void setup() {
 // Start serial communication so we can send data
 // over the USB connection to our p5js sketch
 Serial.begin(9600);


 // We'll use the builtin LED as a status output.
 // We can't use the serial monitor since the serial connection is
 // used to communicate to p5js and only one application on the computer
 // can use a serial port at once.
 pinMode(LED_BUILTIN, OUTPUT);


 // Outputs on these pins
 pinMode(leftLedPin, OUTPUT);
 pinMode(rightLedPin, OUTPUT);


 // Blink them so we can check the wiring
 digitalWrite(leftLedPin, HIGH);
 digitalWrite(rightLedPin, HIGH);
 delay(200);
 digitalWrite(leftLedPin, LOW);
 digitalWrite(rightLedPin, LOW);






 // start the handshake
  while (Serial.available() <= 0) {
    digitalWrite(LED_BUILTIN, HIGH);  // on/blink while waiting for serial data
    Serial.println("0,0");            // send a starting message
    delay(300);                       // wait 1/3 second
    digitalWrite(LED_BUILTIN, LOW);
    delay(50);
  }
}


void loop() {
 // wait for data from p5 before doing something
 while (Serial.available()) {
   digitalWrite(LED_BUILTIN, HIGH);  // led on while receiving data


   int LED_STATE = Serial.parseInt();
   //int right = Serial.parseInt();
   if (Serial.read() == '\n') {
     digitalWrite(rightLedPin, LED_STATE);
     int sensor2 = analogRead(A1);
     delay(5);
     Serial.print(sensor2);
     Serial.print(',');
     Serial.println('Y');
   }
 }
 digitalWrite(LED_BUILTIN, LOW);
}