automatic door opening system project Arduino Code

#include<Servo.h> Servo myServo; constint irPin = 7; int irState = HIGH; voidsetup(){ pinMode(irPin, INPUT); myServo.attach(9); myServo.write(0);  // Door closed Serial.begin(9600); } voidloop(){   irState = digitalRead(irPin); if(irState == LOW){     // Object detected myServo.write(90);  // Door open Serial.println(“Door Open”); delay(3000);        // Keep door open for 3 seconds myServo.write(0);   // Door … Read more

how to make Rain Cloth Collector Working Model

1. Introduction Good morning, respected judges, teachers, and my dear friends. Today, I am presenting my science project, “Rain Cloth Collector Working Model.” During the rainy season, clothes drying outside may become wet when rain starts suddenly. This can be inconvenient, especially when nobody is at home to collect them. My project demonstrates a smart … Read more

how to connect rain sensor with 9v battery and buzzer(alarm) – diy – electronic project

1. Introduction Good morning, respected judges, teachers, and my dear friends. Today, I am going to present my science project, “Rain Sensor with 9V Battery and Buzzer.” Rain is essential for agriculture, plants, and all living organisms. However, unexpected rainfall can cause problems when clothes are drying outside, windows are open, or electronic equipment is … Read more

solar tracker system using arduino and ldr – science working model for exhibition

1. Introduction Good morning, respected judges, teachers, and my dear friends. Today, I am going to present my science project, “Solar Tracking System Using Arduino and LDR.” Solar energy is a clean and renewable source of energy. Solar panels convert sunlight into electrical energy. However, the position of the Sun changes throughout the day, and … Read more

solar tracker system using arduino and ldr code and circuit diagram

Arduino Code #include <Servo.h> Servo sunflower; const int ldrLeft = A0;const int ldrRight = A1;const int servoPin = 9; int angle = 90;                  // Centre positionconst int threshold = 50;       // Ignore small light differencesconst int stepSize = 2;         // … Read more