Self Locking_Switch_SKU__DFR0423 - jimaobian/DFRobotWiki GitHub Wiki

Self-Locking Switch

Introduction

This module is a self locking switch. Press the button to turn it to the "on" state. Press it again to turn it to the "off" state. The board has immersion gold plating and is compatible with the "gravity" 3 pin interface, making it easy to connect to an Arduino I/O expansion shield.

Specification

Operating Voltage: +3.3-5V
Output Type: Digital
Interface Mode: PH2.0-3P
Dimension: 30*22mm/1.18*0.86 inches

Pinouts

center

Tutorial

This is a simple test code that will test if the button is pressed or not.

Requirements

Hardware
- UNO x1
- Self-Locking Switch x1
- Jumper Wires
Software
- Arduino IDE V1.6.8 Click to Download Arduino IDE from Arduino®

Wiring Diagram

连线图

Sample Code:


/***************************************************
* Self-Locking Switch
* ****************************************************
* This example lights the LED when the button is pressed

* @author linfeng([email protected])
* @version  V1.0
* @date  2016-1-25

* GNU Lesser General Public License.
* See <http://www.gnu.org/licenses/> for details.
* All above must be included in any redistribution
* ****************************************************/


int ledPin = 13;
int inputPin = 4;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(inputPin, INPUT);
}

void loop(){
  int val = digitalRead(inputPin);
  if (val == HIGH) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW);
  }
}