IEEEDay2018LED.ino

// IEEEDay2018LED.ino
/* IEEE UOIT Student Branch IEEE Day workshop 2018 */

// Define the PWM pin connections -- these LEDs will connect...
// ...to the PWM connections of the Arduino with 220 Ohm resistors
int LED1 = 3;           
int LED2 = 6;
int LED3 = 9;

// Declare variables
int LEDBrightness = 0; 
int fadeStep = 6; // Number of fade points for the LED

// Setup code
void setup() {
	
	// Define led pins as outputs
	pinMode(LED1, OUTPUT);
	pinMode(LED2, OUTPUT);
	pinMode(LED3, OUTPUT);
	
}


// Looping code -- runs forever
void loop() {
	
  // Set the brightness of the LEDs, the analogWrite function uses PWM 
  analogWrite(LED1, LEDBrightness);
  analogWrite(LED2, LEDBrightness);
  analogWrite(LED3, LEDBrightness);

  // Increment the brightness for each loop through
  LEDBrightness = LEDBrightness + fadeStep;

  // Flip the process to get it to dim again
  if (brightness <= 0 || brightness >= 255) {
    fadeAmount = -fadeAmount;
  }
  
  // delay to see the effects
  delay(30);
  
}

IEEEDay2018Servo.ino

// IEEEDay2018Servo.ino
/* IEEE UOIT -- IEEE Day Workshop 2018 */

#include <Servo.h> // Include the servo header file

Servo lServo;  // Creates servo objects
Servo rServo;


void setup() {
	
	Serial.begin(9600); // Begins communication through the serial monitor with baud rate of 9600
	
	Serial.println("Servo control program started successfully");
	
	lServo.attach(9);  // Defines the pin the servos are connected to
	rServo.attach(6); 
  
}

void loop() {
	
	direction = serial.readString();
	
	if (direction == "Left" || direction == "left" || direction == "L" || direction == "l") {
		lAngle = 0; // Sets servos to left position
		rAngle = 180;
	}
	
	else if (direction == "Right" || direction == "right" || direction == "R" || direction == "r") {
		lAngle = 180; // Sets servos to right position
		rAngle = 0;	
	}
	
	else if (direction == "straight" || direction == "Straight" || direction == "S" || direction == "s") {
		lAngle = 90;
		rAngle = 90;
	}
	else {
		lAngle = 90; // Sets servos to neutral position -- if user does not specify direction it will default to straight
		rAngle = 90;
	}

	lServo.write(lAngle); // Writes the angle to the servo range is 0 to 180
	rServo.write(rAngle);
	
	delay(2000); // Pause for servo rotation -- 2 seconds (2000 ms)
}