The code utilizes specific Arduino functions for sensor reading, control of output pins, and tone generation on the buzzer. The system is designed to activate the fan when the temperature exceeds 30°C ...

Components to Make a Temperature Controlled Fan Arduino Usb cable LM35 temperature sensor 5V single channel Relay Jumper wires Breadboard An AC Fan LM35 Temperature Sensor Pinout The LM35 is a ...

Now as per the code i have written that when the object is at 25cm away from the sensor, glow the 7th LED . Than as the distance decreases the another LED's starts glowing as per the code. In the code ...