DIY SMART WATER FILTER By Technical idEas
  Instagram Facebook YouTube Group  :-  https://chat.whatsapp.com/I4Nv0YEt1hK3Z9EVjsvngh Code :-  // Created by Technical idEas // https://youtube.com/channel/UCCJyR_wnt3SxhErsSUP9Wrw const int trigPin = 11;  const int echoPin = 10;   // defines pins numbers motors.  const int motor = 4;   // 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....