river flood alarm working model 3d for science exhibition – disaster management – diy

1. Introduction Good morning, respected judges, teachers, and my dear friends. Today, I am going to present my science project, “River Flood Alarm Working Model – Flood-Level Early Warning System.” Floods are among the most common natural disasters. Heavy rainfall, overflowing rivers, dam water releases, and poor drainage can cause floods. Floods can destroy houses, … 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