How to Make Smart Fan using by Ultrasonic Sensor
Ⓒⓞⓓⓔ :- //Technical idEas // https://youtube.com/channel/UCCJyR_wnt3SxhErsSUP9Wrw //Home Automation /* Code starts from here */ // defines pins numbers ultrasonic sensor. const int trigPin = 9; const int echoPin = 10; // defines pins numbers motors. const int motor = 8; // defines variables long duration; int distance; void setup() { pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output pinMode(echoPin, INPUT); // Sets the echoPin as an Input pinMode(motor, OUTPUT); // Sets the Motor as an Output Serial.begin(9600); // Starts the serial communication } void loop() { // Clears the trigPin digitalWrite(trigPin, LOW); delayMicroseconds(2); // Sets the trigPin on HIGH state for 10 micro seconds digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); // Reads the echoPin, returns the sound wave travel time in microseconds duration = pulseIn(echoPin, HIGH); // Calculating the distance distance= duration*0.034/2; // Prints the distance on the Serial Monitor Se