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  • gyapo11

    őstag

    válasz mdraco #1051 üzenetére

    Ez beolvassa a nyomógomb állapotát, a buttonState változó értéke vagy 0 vagy 1 lesz.

    Az #1031-be linkelt példa jó, ha nem értesz benne valamit akkor kérdezz.
    Illetve még javaslom a folyamatábrát, azal könnyű megérteni a működést programnyelvtől függetlenül, és utána át kell fordítani az arduino nyelvére, ebben tudok segíteni.

    menyország -> mennyország, akadáj -> akadály, jótálás -> jótállás, Iphoneal > Iphone-nal, kisuly > kisujj, csővet > csövet

  • tibi-d

    tag

    válasz mdraco #1051 üzenetére

    Szia!
    Itt a kód, amit az Arduino.cc "learning" oldaláról ollóztam.

    State change detection (edge detection)

    Often, you don't need to know the state of a digital input all the time,
    but you just need to know when the input changes from one state to another.
    For example, you want to know when a button goes from OFF to ON. This is called
    state change detection, or edge detection.

    This example shows how to detect when a button or button changes from off to on
    and on to off.

    The circuit:
    * pushbutton attached to pin 2 from +5V
    * 10K resistor attached to pin 2 from ground
    * LED attached from pin 13 to ground (or use the built-in LED on
    most Arduino boards)

    created 27 Sep 2005
    modified 30 Aug 2011
    by Tom Igoe

    This example code is in the public domain.

    http://arduino.cc/en/Tutorial/ButtonStateChange

    */

    // this constant won't change:
    const int buttonPin = 2; // the pin that the pushbutton is attached to
    const int ledPin = 13; // the pin that the LED is attached to

    // Variables will change:
    int buttonPushCounter = 0; // counter for the number of button presses
    int buttonState = 0; // current state of the button
    int lastButtonState = 0; // previous state of the button

    void setup() {
    // initialize the button pin as a input:
    pinMode(buttonPin, INPUT);
    // initialize the LED as an output:
    pinMode(ledPin, OUTPUT);
    // initialize serial communication:
    Serial.begin(9600);
    }

    void loop() {
    // read the pushbutton input pin:
    buttonState = digitalRead(buttonPin);

    // compare the buttonState to its previous state
    if (buttonState != lastButtonState) {
    // if the state has changed, increment the counter
    if (buttonState == HIGH) {
    // if the current state is HIGH then the button
    // wend from off to on:
    buttonPushCounter++;
    Serial.println("on");
    Serial.print("number of button pushes: ");
    Serial.println(buttonPushCounter);
    }
    else {
    // if the current state is LOW then the button
    // wend from on to off:
    Serial.println("off");
    }
    }
    // save the current state as the last state,
    //for next time through the loop
    lastButtonState = buttonState;

    // turns on the LED every four button pushes by
    // 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);
    }

    }
    Természetesen úgy alakítod, ahogy neked megfelel.

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