Arduino Gas leakage sensor with LCD display
Parts list:
Arduino board https://goo.gl/XR3mXG
LCD display 16x2 https://goo.gl/yTjFJS
Buzzer https://goo.gl/RgvYcu
Resistor 220 ohm (Resistor kit https://goo.gl/p4JvQY)
MQ-2 gas sensor module https://goo.gl/eFg3Se
Potentiometer 1K (Potentiometer Kit https://goo.gl/z5b4X1)
Connecting wires https://goo.gl/BVC3pM
Breadboard https://goo.gl/rGuHzY
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Code:
#include <LiquidCrystal.h>
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
int potPin = A4;
int potValue = 0;
int buzzer = 6;
void setup() {
lcd.begin(16, 2); // lcd rows and columns
lcd.print("GAS SENSOR");
pinMode(6, OUTPUT);
}
void loop() {
potValue = analogRead(potPin);
lcd.setCursor(0, 1);
lcd.print("Value = ");
lcd.print(potValue);
delay(1000);
lcd.print(" ");
delay(1);
if (potValue>15)
{
digitalWrite(6,HIGH);
delay(1000);
}
}
#include <LiquidCrystal.h>
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
int potPin = A4;
int potValue = 0;
int buzzer = 6;
void setup() {
lcd.begin(16, 2); // lcd rows and columns
lcd.print("GAS SENSOR");
pinMode(6, OUTPUT);
}
void loop() {
potValue = analogRead(potPin);
lcd.setCursor(0, 1);
lcd.print("Value = ");
lcd.print(potValue);
delay(1000);
lcd.print(" ");
delay(1);
if (potValue>15)
{
digitalWrite(6,HIGH);
delay(1000);
}
}
