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Simplify some examples #3997

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6 changes: 1 addition & 5 deletions build/shared/examples/02.Digital/BlinkWithoutDelay/BlinkWithoutDelay.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -54,11 +54,7 @@ void loop() {
previousMillis = currentMillis;

// if the LED is off turn it on and vice-versa:
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
ledState ^= HIGH;

// set the LED with the ledState of the variable:
digitalWrite(ledPin, ledState);
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19 changes: 3 additions & 16 deletions build/shared/examples/02.Digital/Button/Button.ino
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Expand Up @@ -29,9 +29,6 @@
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin

// variables will change:
int buttonState = 0; // variable for reading the pushbutton status

void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
Expand All @@ -40,16 +37,6 @@ void setup() {
}

void loop() {
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);

// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState == HIGH) {
// turn LED on:
digitalWrite(ledPin, HIGH);
} else {
// turn LED off:
digitalWrite(ledPin, LOW);
}
}
// If the button is pressed, light up the LED:
digitalWrite(ledPin, digitalRead(buttonPin);
}
6 changes: 1 addition & 5 deletions build/shared/examples/02.Digital/DigitalInputPullup/DigitalInputPullup.ino
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Expand Up @@ -40,11 +40,7 @@ void loop() {
// logic is inverted. It goes HIGH when it's open,
// and LOW when it's pressed. Turn on pin 13 when the
// button's pressed, and off when it's not:
if (sensorVal == HIGH) {
digitalWrite(13, LOW);
} else {
digitalWrite(13, HIGH);
}
digitalWrite(13, !sensorVal);
}


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7 changes: 1 addition & 6 deletions build/shared/examples/02.Digital/StateChangeDetection/StateChangeDetection.ino
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Expand Up @@ -75,12 +75,7 @@ void loop() {
// checking the modulo of the button push counter.
// the modulo function gives you the remainder of
// the division of two numbers:
if (buttonPushCounter % 4 == 0) {
digitalWrite(ledPin, HIGH);
} else {
digitalWrite(ledPin, LOW);
}

digitalWrite(ledPin, buttonPushCounter % 4 == 0);
}


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