Sensor light notification push

[luccio]

hi guys, I have a problem with the code. I would like a notification to arrive when the brightness sensor value goes down. at the oxen it’s about 1000, when it’s light it goes down under 800. I would like it when I got down I got a notification in my cell phone. Can you help me? thank you

the code is:

#define BLYNK_PRINT Serial   

#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>



char auth[] = "xxx";  
int analogInPin = A0;
int sensorValue = 0;

void notifyOnButtonPress()
{
  // Invert state, since button is "Active LOW"
  int isButtonPressed = !analogRead(0);
  int photocellReading;
  
  if (photocellReading < 800) {
    Serial.println("Button is pressed.");

    // Note:
    //   We allow 1 notification per 5 seconds for now.
    Blynk.notify("Yaaay... button is pressed!");

    // You can also use {DEVICE_NAME} placeholder for device name,
    // that will be replaced by your device name on the server side.
    //Blynk.notify("Yaaay... {DEVICE_NAME}  button is pressed!");
  }
}

void setup()
{
  Serial.begin(9600); 
  Blynk.begin(auth);
  pinMode( analogInPin, INPUT);

    // Setup notification button on pin 2
  pinMode(0, INPUT_PULLUP);
  // Attach pin 2 interrupt to our handler
  attachInterrupt(digitalPinToInterrupt(0), notifyOnButtonPress, CHANGE);
}




void loop()
{
  sensorValue = analogRead(analogInPin);            
 
  Serial.print("sensor = " );
  Serial.println(sensorValue);      
 
  delay(1000);
  Blynk.run();
}

[Gunner]

As per the instructions you erased in order to post…

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Your void loop() is also a little busy… and delayed… both bad combinations

http://help.blynk.cc/getting-started-library-auth-token-code-examples/blynk-basics/how-to-display-any-sensor-data-in-blynk-app

[luccio]

[luccio]

I tried so but still nothing? a help?

#define BLYNK_PRINT Serial   

#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
#include <SimpleTimer.h>

char auth[] = "xxx";  

const  int analogInPin = A0;
int sensorValue = 0;
int lastValue = 0;


void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth);
  pinMode(analogInPin, INPUT);
}

void loop()
{ 
  Blynk.run();

  sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);

if (sensorValue == 800 && lastValue == 0) {
  Serial.println("is on, send notification");
  Blynk.notify("light on");
  lastValue = 0;
  delay(1000);
//send notification
    
  } 
  else if (sensorValue == 1000 && lastValue == 0) {
    
  Serial.println("light off");
  delay(1000);
  }
  else {
    //st
    Serial.println("no send notification");
    lastValue = 0;
    delay(1000);
  }
  
  delay(100);
}

[luccio]

do you have any improvements to do?
it works

#define BLYNK_PRINT Serial   

#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
#include <SimpleTimer.h>

char auth[] = "xxx";  

const  int analogInPin = 0;
int sensorValue = 0;
int lastValue = 1000;


void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth);
  pinMode(analogInPin, INPUT);
}

void loop()
{ 
  Blynk.run();

  sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);

if (sensorValue < 500 && lastValue == 1000) {
  Serial.println("is on, send notification");
  Blynk.notify("light on");
  lastValue = 1000;
  delay(3000);
//send notification
    
  } 
  else if (sensorValue > 1000 && lastValue == 0) {
  Serial.println("light off");
  delay(3000);
  }

  }

[PeteKnight]

@luccio

delay(3000);

One big improvement would be to get rid of this and do it properly with timers.

Pete.

[Gunner]

@luccio

do you have any improvements

I improved your posts by properly formatting the code as you were instructed to do

Otherwise, no, not really… your loop is still full there and is still use of delays… reread ALL those links I sent you.