Help for my project

Solved
1

Hi everyone I need your help.
I have to combine two articles I created.

  1. Ultrasonic distance sensor
  2. Reading temperature sensor DS18B20

Code Project 1

#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#define triggerPort D1 //pin NodeMCU
#define echoPort    D2 //pin NodeMCU

long r ; //variabile distanza

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "xxxx";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "xxxxx";
char pass[] = "xxxxx";

BlynkTimer timer;

void myTimerEvent()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V0, 82-r); //Virtual Pin Label (82-r per avere il valore invertito)
  Blynk.virtualWrite(V1, r);    //Virtual Pin Level H
}
void setup()
{
  // Debug console
  Serial.begin(9600);
  pinMode( triggerPort, OUTPUT );
  pinMode( echoPort, INPUT );
  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 8442);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8442);
  
  timer.setInterval(10000L, myTimerEvent); //Ritardo di lettura in millisecondi
}



void loop() {
  
  
  digitalWrite( triggerPort, LOW );   //porta bassa l'uscita del trigger
  digitalWrite( triggerPort, HIGH );    //invia un impulso di 10microsec su trigger
  delayMicroseconds( 10 );
  digitalWrite( triggerPort, LOW );
  long duration = pulseIn( echoPort, HIGH , 10000 ); // 10000 µS = max circa 1,7 metri
  r = 0.034 * duration / 2;
  
  

  /*
  Adessso sono disattivate
  //Notiche allerta
  if ( r > 10) {
  Blynk.notify("ALLERTA COMBUSTIBILE CALDAIA!!!  IL LIVELLO DI COMBUSTIBILE DELLA CALDAIA E' BASSO");
  Blynk.email("xxxxxxxxx","ALLERTA COMBUSTIBILE CALDAIA","IL LIVELLO DI COMBUSTIBILE DELLA CALDAIA E' BASSO");
}*/

  Blynk.run();
  timer.run(); // Initiates BlynkTimer
  



}

code project 2

#include <OneWire.h>
#include <DallasTemperature.h>
#define BLYNK_PRINT Serial
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SimpleTimer.h>


#define ONE_WIRE_BUS 2 //pin connected to DS18B20 Sensor(s) D4 on NodeMCU

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

SimpleTimer timer;

char auth[] = "xxxxx"; 
char ssid[] = "xxxxx";
char pass[] = "xxxxx";

 
void sendSensor(){
 
  Serial.print("Requesting temperatures...");
  sensors.requestTemperatures(); // Send the command to get temperatures
  
  Serial.println("DONE");
  
  float temp1 = sensors.getTempCByIndex(0);
  Serial.print("Temperature for the device 0 (index 0) is: ");
  Serial.println(temp1);
  Blynk.virtualWrite(V10, temp1); //BLYNK Value Display set to Virtual Pin 10

  
}


void setup()
{

  Serial.begin(115200);
  
  sensors.begin();
  
  Blynk.begin(auth, ssid, pass);

  timer.setInterval(1000L, sendSensor); // Temp Sensor Function every 1 seconds
   
}

void loop()
{
  Blynk.run();
  timer.run();
}

I tried joining my two projects but only the ulltrasuoni sensor works but the temperature is not detected. Where is wrong ???

Unified Code

#include <OneWire.h>
#include <DallasTemperature.h>
#define BLYNK_PRINT Serial
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>



#define triggerPort D1 //pin NodeMCU
#define echoPort    D2 //pin NodeMCU

#define ONE_WIRE_BUS 2 //pin connected to DS18B20 Sensor(s) D4 on NodeMCU

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

void sendSensor(){
  
Serial.print("Requesting temperatures...");
sensors.requestTemperatures(); // Send the command to get temperatures

float temp1 = sensors.getTempCByIndex(0);
  Serial.print("Temperature for the device 0 (index 0) is: ");
  Serial.println(temp1);
  Blynk.virtualWrite(V10, temp1); //BLYNK Value Display set to Virtual Pin 10

  
}

long r ; //variabile distanza

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "xxxxxx";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "xxxxxx";
char pass[] = "xxxxx";

BlynkTimer timer;

void myTimerEvent()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V0, 82-r); //Virtual Pin Label (82-r per avere il valore invertito)
  Blynk.virtualWrite(V1, r);    //Virtual Pin Level H
}
void setup()
{
  // Debug console
  Serial.begin(115200);
  pinMode( triggerPort, OUTPUT );
  pinMode( echoPort, INPUT );
  sensors.begin();
  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 8442);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8442);
  
  timer.setInterval(10000L, myTimerEvent); //Ritardo di lettura in millisecondi
}



void loop() {
  
  
  digitalWrite( triggerPort, LOW );   //porta bassa l'uscita del trigger
  digitalWrite( triggerPort, HIGH );    //invia un impulso di 10microsec su trigger
  delayMicroseconds( 10 );
  digitalWrite( triggerPort, LOW );
  long duration = pulseIn( echoPort, HIGH , 10000 ); // 10000 µS = max circa 1,7 metri
  r = 0.034 * duration / 2;
  
  

  /*
  Adessso sono disattivate
  //Notiche allerta
  if ( r > 10) {
  Blynk.notify("ALLERTA COMBUSTIBILE CALDAIA!!!  IL LIVELLO DI COMBUSTIBILE DELLA CALDAIA E' BASSO");
  Blynk.email("xxxxxxx","ALLERTA COMBUSTIBILE CALDAIA","IL LIVELLO DI COMBUSTIBILE DELLA CALDAIA E' BASSO");
}*/

  Blynk.run();
  timer.run(); // Initiates BlynkTimer
  



}
2

the problem is that in your unified code you didn’t created a timer event for reading the ds18, you have timer only for the distance sensor.

ie, you should put sendsensor into mytimer event, or even better, create a new timer.setinterval for sendsensor.

also, i recommend for the distance measurement to create some validation conditions and averaging multiple measurements in a for loop (say 10 or more).

3

With this code works

#include <OneWire.h>
#include <DallasTemperature.h>
#define BLYNK_PRINT Serial
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>



#define triggerPort D1 //pin NodeMCU
#define echoPort    D2 //pin NodeMCU

#define ONE_WIRE_BUS 2 //pin connected to DS18B20 Sensor(s) D4 on NodeMCU

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);



long r ; //variabile distanza

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "xxxxxxxxxxxxx";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "xxxxxxxxxx";
char pass[] = "xxxxxxxxxxxx";

BlynkTimer timer;

void myTimerEvent()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.


  

sensors.requestTemperatures(); // Send the command to get temperatures

float temp1 = sensors.getTempCByIndex(0);
  Serial.print("Temperatura Sonda Caldaia: ");
  Serial.println(temp1);
  Blynk.virtualWrite(V10, temp1); //BLYNK Value Display set to Virtual Pin 10

  

  Blynk.virtualWrite(V0, 82-r); //Virtual Pin Label (82-r per avere il valore invertito)
  Blynk.virtualWrite(V1, r);    //Virtual Pin Level H
}
void setup()
{
  // Debug console
  Serial.begin(115200);
  pinMode( triggerPort, OUTPUT );
  pinMode( echoPort, INPUT );
  sensors.begin();
  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 8442);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8442);
  
  timer.setInterval(10000L, myTimerEvent); //Ritardo di lettura in millisecondi
}



void loop() {
  
  
  digitalWrite( triggerPort, LOW );   //porta bassa l'uscita del trigger
  digitalWrite( triggerPort, HIGH );    //invia un impulso di 10microsec su trigger
  delayMicroseconds( 10 );
  digitalWrite( triggerPort, LOW );
  long duration = pulseIn( echoPort, HIGH , 10000 ); // 10000 µS = max circa 1,7 metri
  r = 0.034 * duration / 2;
  
  

  /*
  Adessso sono disattivate
  //Notiche allerta
  if ( r > 10) {
  Blynk.notify("ALLERTA COMBUSTIBILE CALDAIA!!!  IL LIVELLO DI COMBUSTIBILE DELLA CALDAIA E' BASSO");
  Blynk.email("xxxxx","ALLERTA COMBUSTIBILE CALDAIA","IL LIVELLO DI COMBUSTIBILE DELLA CALDAIA E' BASSO");
}*/

  Blynk.run();
  timer.run(); // Initiates BlynkTimer
  



}
4

ok, then please mark the case as solved!

5

I would like to enter the notifications with the bot telegram. Do I think it’s possible?