jigneshk5 · April 28, 2020 12:53
diff --git a/smart_light.ino b/smart_light.ino
 #define BLYNK_PRINT Serial
 #include <ESP8266WiFi.h>
 #include <BlynkSimpleEsp8266.h>

 char ssid[] = "****";   //Enter your WiFi name here!
 char pass[] = "****"; //Enter your WiFi password here!
 const int led1= D5;
 const int trigPin = D3;
 const int echoPin = D4;
 const int buttonPin = D7;
 bool detect=true;
 int intensity=300;      
 // You should get Auth Token in the Blynk App.
 // Go to the Project Settings (nut icon).
 char auth[] = "*****************************";
 BlynkTimer timer; // Create a Timer object called "timer"!
 WidgetLED blynkled1(V1);

 int triggerRadar(int trigPin, int echoPin){
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  long duration = pulseIn(echoPin, HIGH);
  int d = duration*0.0343/2;
  return d;
 }

 // This function will be called every time Slider Widget
 // in Blynk app writes values to the Virtual Pin 1
 BLYNK_WRITE(V2)
 {
  intensity = param.asInt(); // assigning incoming value from pin V1 to a variable
  Serial.println("Led intensity is set to: "+ String(intensity));
 }

 BLYNK_WRITE(V4)                    //Controlling street light from Blynk app manually
 {
  int pinValue = param.asInt(); // assigning incoming value from pin V2 to a variable
  if(pinValue==1){
    detect=false;
    }
    else{
      detect=true;
      }
 }
 void notifyOnButtonPress()
 {
  // Invert state, since button is "Active LOW"
  int isButtonPressed = !digitalRead(buttonPin);
  if (isButtonPressed) {
    Blynk.notify("Panic button pressed!");
    Blynk.virtualWrite(V3, 1);     //V3 is the Panic button here
  }
 }
 void setup() {
  Serial.begin(115200);

  pinMode(led1, OUTPUT);
  pinMode(trigPin, OUTPUT);  // Sets the trigPin as an Output
  pinMode(echoPin, INPUT);  // Sets the echoPin as an Input
  pinMode(buttonPin,INPUT_PULLUP); 
  Blynk.begin(auth, ssid, pass);
  // Attach pin 2 interrupt to our handler
  //attachInterrupt(digitalPinToInterrupt(buttonPin), notifyOnButtonPress, CHANGE); 
   timer.setInterval(2000L,updateChart); 
 }
 void loop() {
  Blynk.run(); 
  timer.run();
 }
 void updateChart(){
    int d = triggerRadar(trigPin,echoPin);   // read the distance from ultrasonic sensor
    int brightness = analogRead(A0); //Value of the sensor connected Option 4 pin of Mux
   if(brightness<580 && detect){    //At Night
     if(d<10){            //As the car detected
         analogWrite(led1, 1023);  /* set initial 100% duty cycle of 1023 */
           blynkled1.setValue(255);         /* set initial 1000% of 255 */  
     }
     else{
        analogWrite(led1, intensity);                /* set intensity as x% of 1023 */  
        int mappedIntensity = map(intensity, 0, 1023, 0, 255);
        blynkled1.setValue(mappedIntensity);         /* set intensity as x% of 255 */ 
      }
   }                      
   else{                   //At Daytime
    blynkled1.off();
    digitalWrite(led1,LOW);
    }
   Serial.println("Dist: "+String(d));
   Serial.println("BRIGHT: "+String(brightness));
   Blynk.virtualWrite(V0, brightness);

   notifyOnButtonPress();     //Panic button
 }
	#define BLYNK_PRINT Serial
	#include <ESP8266WiFi.h>
	#include <BlynkSimpleEsp8266.h>

	char ssid[] = "****"; //Enter your WiFi name here!
	char pass[] = "****"; //Enter your WiFi password here!
	const int led1= D5;
	const int trigPin = D3;
	const int echoPin = D4;
	const int buttonPin = D7;
	bool detect=true;
	int intensity=300;
	// You should get Auth Token in the Blynk App.
	// Go to the Project Settings (nut icon).
	char auth[] = "*****************************";
	BlynkTimer timer; // Create a Timer object called "timer"!
	WidgetLED blynkled1(V1);

	int triggerRadar(int trigPin, int echoPin){
	digitalWrite(trigPin, LOW);
	delayMicroseconds(2);
	digitalWrite(trigPin, HIGH);
	delayMicroseconds(10);
	digitalWrite(trigPin, LOW);
	long duration = pulseIn(echoPin, HIGH);
	int d = duration*0.0343/2;
	return d;
	}

	// This function will be called every time Slider Widget
	// in Blynk app writes values to the Virtual Pin 1
	BLYNK_WRITE(V2)
	{
	intensity = param.asInt(); // assigning incoming value from pin V1 to a variable
	Serial.println("Led intensity is set to: "+ String(intensity));
	}

	BLYNK_WRITE(V4) //Controlling street light from Blynk app manually
	{
	int pinValue = param.asInt(); // assigning incoming value from pin V2 to a variable
	if(pinValue==1){
	detect=false;
	}
	else{
	detect=true;
	}
	}
	void notifyOnButtonPress()
	{
	// Invert state, since button is "Active LOW"
	int isButtonPressed = !digitalRead(buttonPin);
	if (isButtonPressed) {
	Blynk.notify("Panic button pressed!");
	Blynk.virtualWrite(V3, 1); //V3 is the Panic button here
	}
	}
	void setup() {
	Serial.begin(115200);

	pinMode(led1, OUTPUT);
	pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
	pinMode(echoPin, INPUT); // Sets the echoPin as an Input
	pinMode(buttonPin,INPUT_PULLUP);
	Blynk.begin(auth, ssid, pass);
	// Attach pin 2 interrupt to our handler
	//attachInterrupt(digitalPinToInterrupt(buttonPin), notifyOnButtonPress, CHANGE);
	timer.setInterval(2000L,updateChart);
	}
	void loop() {
	Blynk.run();
	timer.run();
	}
	void updateChart(){
	int d = triggerRadar(trigPin,echoPin); // read the distance from ultrasonic sensor
	int brightness = analogRead(A0); //Value of the sensor connected Option 4 pin of Mux
	if(brightness<580 && detect){ //At Night
	if(d<10){ //As the car detected
	analogWrite(led1, 1023); /* set initial 100% duty cycle of 1023 */
	blynkled1.setValue(255); /* set initial 1000% of 255 */
	}
	else{
	analogWrite(led1, intensity); /* set intensity as x% of 1023 */
	int mappedIntensity = map(intensity, 0, 1023, 0, 255);
	blynkled1.setValue(mappedIntensity); /* set intensity as x% of 255 */
	}
	}
	else{ //At Daytime
	blynkled1.off();
	digitalWrite(led1,LOW);
	}
	Serial.println("Dist: "+String(d));
	Serial.println("BRIGHT: "+String(brightness));
	Blynk.virtualWrite(V0, brightness);

	notifyOnButtonPress(); //Panic button
	}