Metal Touch Sensor Module [S042]

Metal Touch Sensor Module [S042] 

https://www.youtube.com/watch?v=rF92w77SAuI

*GitHub : https://github.com/rdiot/rdiot-s042.git

* Specs

Color: red

Main chip: LM393

Operating voltage: DC 5V

Light weight design

With single channel signal output

Low level output signal used for human body touch sensor alarm

Compatible with Arduino

* Contents

- Connect

A0 ----- X

G ----- GND

+ ----- 5V

D0 ----- D2

- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.h>

 

int pin = 2;

 

LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

 

void setup()

{

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");

 

  pinMode(pin,INPUT);

  delay(1000);

 

  lcd.clear();

}

 

void loop()

{

 

  lcd.setCursor(0,0);

  lcd.print("S042:Metal Touch");

 

  int val = digitalRead(pin);

 

  lcd.setCursor(0,1);

  lcd.print("digital=" + (String)val + " ");

 

  if(true == IsTouchec(pin))

  {

    lcd.setCursor(0,2);

    lcd.print("IsTouch=Touched   ");

  }

  else

  {    

    lcd.setCursor(0,2);

    lcd.print("IsTouch=None    ");

  }

 

}

 

bool IsTouchec(int p)

{

 int time = 0;

 do

 {

   if (HIGH == digitalRead(p)) return true;

   delay(1);

 } while (time++<15);

 return false;

}