1x4 Key Matrix Membrane Switch Control Panel Slim Keyboard Keypad
  • 1x4 Key Matrix Membrane Switch Control Panel Slim Keyboard Keypad

Teclado Menbrana Matrix Fino 1x4

0 Review
3,94 €
Com IVA
BE15000072
Quantidade

  • Política de segurança Política de segurança
  • Política de entrega 24/48H Política de entrega 24/48H
  • Política de devolução Política de devolução
  • Pad Size: 104 x 24 x 0.8mm
  • Cable Length: 96mm (include connector)
  • Weight: 6g
  • Connector: Dupont 9 pins, 0.1" (2.54mm) Pitch
  • Mount Style: Self-Adherence 
  • Max. Circuit Rating: 35VDC, 100mA
  • Insulation Spec.: 100M Ohm, 100V
  • Dielectric Withstand: 250VRms (60Hz, 1min)
  • Contact Bounce: <=5ms
  • Life Expectancy: 1 million closures
  • Operation Temperature: -20 to +40 °C

 

Code:

// constants won't change. They're used here to
// set pin numbers:
const int buttonPin[] = {9,10,11,12}; // the number of the pushbutton pins
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);
// initialize the Serial Monitor @ 9600
Serial.begin(9600);
// initialize the keypad pin(s) as an input:
for(int x=0; x<2; x++)
{
pinMode(buttonPin[x], INPUT_PULLUP);
}
}

void loop(){
// read the state of the keypad value:
for(int x=0; x<2; x++)
{
//signifying the state of which the button is in by reading the appropriate pin #
buttonState = digitalRead(buttonPin[x]);

// check if the pushbutton on the keypad is pressed.
// if it is, the buttonState is LOW:
if (buttonState == LOW && buttonPin[x] == 9) {
// turn LED off:
Serial.print("OFF * ");
// digitalWrite(ledPin, LOW);
}
if (buttonState == LOW && buttonPin[x] == 10) {
// turn LED off:
Serial.print("ON *");
//digitalWrite(ledPin, LOW);
}
}
}
BE15000072

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