automatic Door Opening System using arduino project code

by

#include <Servo.h> Servo gateServo; const int trigPin = 9;const int echoPin = 8;const int servoPin = 10; long duration;int distance; // Gate positionsconst int gateClosed = 0;const int gateOpen = 90; // Distance at which car is detectedconst int detectionDistance = 15; void setup() {Serial.begin(9600); pinMode(trigPin, OUTPUT);pinMode(echoPin, INPUT); gateServo.attach(servoPin); // Start with gate closedgateServo.write(gateClosed); delay(1000);} … Read more

Human Respiratory System Working Model – DIY

by

This Human Respiratory System Working Model is an excellent biology science exhibition project that demonstrates how breathing takes place in the human body. The model can be made using balloons, transparent pipes, cardboard, straws, and simple craft materials. The main working principle is based on the movement of air into and out of the lungs … Read more

How to Make an Automated Irrigation System Using Soil Moisture Sensor

by

An Automated Irrigation System using a Soil Moisture Sensor is a simple and useful science exhibition project that demonstrates how technology can be used to water plants automatically. The main purpose of this model is to supply water to a plant whenever the soil becomes dry and stop watering when sufficient moisture is detected. This … Read more

How to Make a Water Cycle 3D Working Model

by

This Water Cycle 3D Working Model demonstrates the major stages of the natural water cycle—evaporation, condensation, precipitation, collection, and runoff—using a small humidifier and a DC water pump. It is suitable for a school science exhibition because the processes can be demonstrated visibly. Materials Required Step 1: Prepare the Base Take a strong cardboard or … Read more

Smart Automatic Car Parking and Toll Gate System using Arduino Uno

by

Introduction “Good morning, respected judges. Today, I am proud to present our project: the Smart Automatic Car Parking and Toll Gate System. As global urban centers expand, traffic congestion at entry points like parking garages, malls, and toll plazas continues to escalate. Traditional manual boom barriers rely heavily on human operators, leading to slow processing … Read more