Download Arduino Sensor Project: IR, Flame, MQ5 Gas, SIM800L Module, and Ultrasonic Sensor and more Schemes and Mind Maps Law in PDF only on Docsity!
Ir sensor ,code
const int ledpin=13;
const int flamepin=A2;
const int buzpin=11;
const int threshold=200;
int flamesensvalue=0;
void setup() {
Serial.begin(9600);
pinMode(ledpin,OUTPUT);
pinMode(flamepin,INPUT);
pinMode(buzpin,OUTPUT);
void loop() {
flamesensvalue=analogRead(flamepin);
if (flamesensvalue<=threshold) {
Serial.println(flamesensvalue);
digitalWrite(ledpin,HIGH);
tone(buzpin,100);
delay(1000);
} else {
digitalWrite(ledpin,LOW);
noTone(buzpin);
Note; led pin 1 = d Buzz pin = d Led pin 2 = d
pinMode(ledpin 2 ,OUTPUT);
pinMode(ledpin 1 ,OUTPUT);
If flamevalue = 200 ;
Mq5 gas sensor const int LED_PIN = 2; const int BUZZER_PIN = 4; const int ANALOG_PIN = A0; const int GAS_THRESHOLD = 130; void setup() { Serial.begin(9600); pinMode(LED_PIN, OUTPUT); pinMode(BUZZER_PIN, OUTPUT); } void loop() { int gasLevel = analogRead(ANALOG_PIN); Serial.println(gasLevel); // For debugging, can be removed in final version if (gasLevel > GAS_THRESHOLD) { Serial.println("Gas Detection!!"); digitalWrite(LED_PIN, HIGH); digitalWrite(BUZZER_PIN, HIGH); delay(1000); digitalWrite(LED_PIN, LOW); digitalWrite(BUZZER_PIN, LOW); delay(1000); } }
ULTRASONIC
#include <Arduino.h> const int TriggerPin = 8; const int EchoPin = 9; long Duration = 0; int Delay_timer = 1000; void setup() { pinMode(TriggerPin, OUTPUT); pinMode(EchoPin, INPUT); Serial.begin(9600); } long Distance(long time){ long DistanceCalc; DistanceCalc = ((time * 0.034) / 2); // centimeters return DistanceCalc; } void loop() { // put your main code here, to run repeatedly: digitalWrite(TriggerPin, LOW); delayMicroseconds(2); digitalWrite(TriggerPin,HIGH); delayMicroseconds(10); digitalWrite(TriggerPin, LOW); Duration = pulseIn(EchoPin,HIGH); long Distance_cm = Distance(Duration); Serial.print("Distance = "); Serial.print(Distance_cm); Serial.println (" cm"); delay(Delay_timer); }
