In the second lesson, we are explaining how to control some leds by connecting a button as digital sensor:
THIS IS A SOLUTION FOR THE CODE:
void setup() {
// initialize digital pins 13 and pin 10 as an output, and pin 2 as input
pinMode(13, OUTPUT);
pinMode(10, OUTPUT);
pinMode (2, INPUT);
}
void loop() {
if (digitalRead (2) == HIGH){ // condition for the button (HIGH is when pressed)
digitalWrite(13, HIGH);
digitalWrite(10, LOW); // turn the LED 13 on and the LED 10 off
}else {
digitalWrite(13, LOW);
digitalWrite(10, HIGH); // alternative ligthning
}
}