In Lesson 2, i had to create a circuit that allows for the divergence of electricity between two red LED’s and one green LED.
By hitting the button you turned the green LED on while turning off the two red LED’s.
off
on
All in all quite good and fairly straight forward, except the extra timing code added in at the end.
int switchState = 0;
void setup(){
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
pinMode(5,OUTPUT);
pinMode(2,INPUT);
}
void loop(){
switchState = digitalRead(2);
// this program is for exercise 2 and should light up some LEDs 2 red and one green
if (switchState == LOW) {
// the button is not pressed
digitalWrite(3, HIGH); // Green LED
digitalWrite(4, LOW); // Red LED
digitalWrite(5, LOW); // Red LED
}
else { // the button is pressed
digitalWrite(3, LOW);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
}
} // go back to the beginning of the loop yo
Interactive Design 