Arduino: Digital Input Pullup - Revision history

Onnowpurbo: /* Code Indonesia */

2022-02-09T05:05:38Z

Code Indonesia

Onnowpurbo: /* Code Indonesia */

2022-02-09T05:05:23Z

Code Indonesia

Onnowpurbo: /* Code Indonesia */

2022-02-09T05:05:14Z

Code Indonesia

Onnowpurbo: /* Code */

2022-02-09T05:03:19Z

Code

Onnowpurbo: New page: Sumber: https://www.arduino.cc/en/Tutorial/InputPullupSerial This example demonstrates the use of INPUT_PULLUP with pinMode(). It monitors the state of a switch by establishing serial com...

2015-12-04T21:55:09Z

New page: Sumber: https://www.arduino.cc/en/Tutorial/InputPullupSerial This example demonstrates the use of INPUT_PULLUP with pinMode(). It monitors the state of a switch by establishing serial com...

New page

Sumber: https://www.arduino.cc/en/Tutorial/InputPullupSerial

This example demonstrates the use of INPUT_PULLUP with pinMode(). It monitors the state of a switch by establishing serial communication between your Arduino and your computer over USB.

Additionally, when the input is HIGH, the onboard LED attached to pin 13 will turn on; when LOW, the LED will turn off.

==Hardware Required==

* Arduino Board
* A momentary switch, button, or toggle switch
* breadboard
* hook-up wire

==Rangkaian==

[[Image:InputPullupButton.png|center|200px|thumb]]

[[Image:InputPullupSerial sch.png|center|200px|thumb]]

==Code==

/*
Input Pullup Serial

This example demonstrates the use of pinMode(INPUT_PULLUP). It reads a
digital input on pin 2 and prints the results to the serial monitor.

The circuit:
* Momentary switch attached from pin 2 to ground
* Built-in LED on pin 13

Unlike pinMode(INPUT), there is no pull-down resistor necessary. An internal
20K-ohm resistor is pulled to 5V. This configuration causes the input to
read HIGH when the switch is open, and LOW when it is closed.

created 14 March 2012
by Scott Fitzgerald

http://www.arduino.cc/en/Tutorial/InputPullupSerial

This example code is in the public domain

*/

void setup() {
//start serial connection
Serial.begin(9600);
//configure pin2 as an input and enable the internal pull-up resistor
pinMode(2, INPUT_PULLUP);
pinMode(13, OUTPUT);

}

void loop() {
//read the pushbutton value into a variable
int sensorVal = digitalRead(2);
//print out the value of the pushbutton
Serial.println(sensorVal);

// Keep in mind the pullup means the pushbutton's
// 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);
}
}

==Referensi==

* https://www.arduino.cc/en/Tutorial/InputPullupSerial

@@ Line 82: / Line 82: @@
   ujung lain PUSHBUTTON di sambungkan +5V
   */
-−
   // set pin:
   const int buttonPin = 2;     // pin pushbutton
   const int ledPin =  13;      // pin LED
-−
   // kondisi pushbutton
   int buttonState = 0;
@@ Line 97: / Line 96: @@
     pinMode(buttonPin, INPUT);
+  }
-−
   void loop() {
     // baca kondisi pushbutton:

@@ Line 78: / Line 78: @@
   Jika PUSHBUTTON di tekan
   LED akan menyala
-−
   PUSBUTTON di sambungkan ke PIN 2 dan ground melalui resistor
   ujung lain PUSHBUTTON di sambungkan +5V

@@ Line 78: / Line 78: @@
   Jika PUSHBUTTON di tekan
   LED akan menyala
   */

← Older revision		Revision as of 05:03, 9 February 2022
Line 72:		Line 72:


		+	==Code Indonesia==

		+	/*
		+	LED menyala oleh PUSHBUTTON
		+	Jika PUSHBUTTON di tekan
		+	LED akan menyala
		+	*/


		+	// set pin:
		+	const int buttonPin = 2; // pin pushbutton
		+	const int ledPin = 13; // pin LED
		+
		+	// kondisi pushbutton
		+	int buttonState = 0;
		+
		+	void setup() {
		+	// LED Pin OUTOUT
		+	pinMode(ledPin, OUTPUT);
		+	// pushbutton pin INPUT
		+	pinMode(buttonPin, INPUT);
		+	}
		+
		+	void loop() {
		+	// baca kondisi pushbutton:
		+	buttonState = digitalRead(buttonPin);
		+
		+	// check if pushbutton ditekan.
		+	// buttonState akan HIGH jika di tekan:
		+	if (buttonState == HIGH) {
		+	// LED nyala:
		+	digitalWrite(ledPin, HIGH);
		+	} else {
		+	// LED mati:
		+	digitalWrite(ledPin, LOW);
		+	}
		+	}

	==Referensi==		==Referensi==

	* https://www.arduino.cc/en/Tutorial/InputPullupSerial		* https://www.arduino.cc/en/Tutorial/InputPullupSerial