Iduino SE043 User guide

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Button switch Module

1 Introduction

This is a simple button switch module, like a key switch. When you press on the key,
this module output a high level signal.

Specification:

 Color: black
 Voltage:5V DC
 3 Pins

2 pinout

Pin

Description

S

Output pin

Middle pin

Power (5V DC)

-

Ground

3. Example

Here is a example show that the color of the LED blinking. When you press the key,
the LED13 turns on. The connection as below:

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********Code Begin********

int Led = 13 ;// define LED Interface
int buttonpin = 7; // define the key switch sensor interface
int val ;// define numeric variables val
void setup ()
{
pinMode (Led, OUTPUT); // define LED as output interface
pinMode (buttonpin, INPUT); // define the key switch sensor output
interface
}
void loop ()
{
val = digitalRead (buttonpin); // digital interface will be assigned a
value of 3 to read val
if (val == HIGH) // When the key switch when the sensor detects a
signal, LED flashes
{
digitalWrite (Led, LOW);
}
else
{
digitalWrite (Led, HIGH);
}
}

********Code End********

IDUINO for Maker’s life

www.openplatform.cc