On and Off Switch

For this project, I went with a simple on and off switch. I used 4 buttons to make two on and off switches. I used one pair to turn the blue LED on and off when pressed. I used the other pair to turn the white LED on and off and make the red LED blink when I turned off the white LED. The blue and white LEDs are connected with 1k resistors and the red LED is connected with the 330 resistor. After reading the lesson on digital inputs, I decided to follow the diagram in the lesson and not use the extra resisitors.

Materials Used:

1 Arduino

3 LED lights: Red, White and Blue

4 Buttons

1 USB connector

15 jumper wires

2 1k resistors

1 330 resistor

	//LEDS
	const int bluePin = 13;
	const int whitePin = 9;
	const int redPin = 8;
	//Buttons
	const int on1Button= 11;
	const int off1Button = 10;
	const int on2Button = 7;
	const int off2Button = 6;
	// the setup function runs once when you press reset or power the board
	void setup() {
	// initialize digital pin LED_BUILTIN as an output.
	pinMode(bluePin, OUTPUT);
	pinMode(on1Button, INPUT_PULLUP);
	pinMode(off1Button, INPUT_PULLUP);
	pinMode(on2Button, INPUT_PULLUP);
	pinMode(off2Button, INPUT_PULLUP);
	Serial.begin (9600);
	}
	// the loop function runs over and over again forever
	void loop() {
	// wait for a second
	if (digitalRead(on1Button) == LOW)
	{
	digitalWrite(bluePin, HIGH);
	}
	if (digitalRead(off1Button) == LOW)
	{
	digitalWrite(bluePin, LOW);
	}
	if (digitalRead(on2Button) == LOW)
	{
	digitalWrite(whitePin, HIGH);
	}
	if (digitalRead(off2Button) == LOW)
	{
	digitalWrite(whitePin, LOW);
	}
	if (digitalRead(on2Button) == HIGH)
	{
	digitalWrite(redPin, LOW);
	}
	if (digitalRead(off2Button) == LOW)
	{
	digitalWrite(redPin,HIGH);
	}
	}

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