Hello everyone,
I encounter an error on my code following the addition of DS18B20 sensor to my project CAYENNE + NODEMCU + 2 HCSR04 sensors.
Both sensors work perfectly however I need to add 2 temperature sensors to my initial project.
Here is the code added that gives errors to the compilation
// 2 HCSR04 Pour la mesure de hauteur d’eau dans des cuves de 1000 litres.
#define CAYENNE_DEBUG
#define CAYENNE_PRINT Serial
#include <CayenneMQTTESP8266.h>
#include <ESP8266WiFi.h>
#include "CayenneDefines.h"
#include "BlynkSimpleEsp8266.h"
#include "CayenneWiFiClient.h"
#include <OneWire.h>
#include <DallasTemperature.h>
#define VIRTUAL_PIN1 V1
#define VIRTUAL_PIN2 V2
const int tmpPin = 14;
OneWire oneWire(tmpPin);
DallasTemperature sensors(&oneWire);
//const int tmpPin1 = 1;
//OneWire oneWire1(tmpPin1);
//DallasTemperature sensors1(&oneWire1);
// WiFi network info.
char ssid[] = "XXX";
char wifiPassword[] = "XXX";
// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
char username[] = "XXX";
char password[] = "XXX";
char clientID[] = "XXX";
unsigned long lastMillis = 0;
unsigned long lastMillis2 = 0;
// defines pins numbers HCSR04 N°1
const int trigPin = 2; //D4
const int echoPin = 0; //D3
// defines pins numbers HCSR04 N°2
const int trigPin2 = 4; //D2
const int echoPin2 = 5; //D1
// defines variables HCSR04 N°1
long duration;
int distance;
int y;
// defines variables HCSR04 N°2
long duration2;
int distance2;
int y2;
void setup() {
Serial.begin(9600); // Starts the serial communication
Cayenne.begin(username, password, clientID, ssid, wifiPassword);
sensors.begin();
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
pinMode(trigPin2, OUTPUT); // Sets the trigPin2 as an Output
pinMode(echoPin2, INPUT); // Sets the echoPin2 as an Input
}
void loop() {
Cayenne.loop();
//HCSR04 N°1
// 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)-10;
// Prints the distance on the Serial Monitor
Serial.print("Distance: ");
Serial.println(distance);
y = map(distance, 95, 10, 0, 100);
y = constrain(y, 0, 100);
delay(5000);
if (millis() - lastMillis > 10000) {
lastMillis = millis();
//Cayenne.virtualWrite(10, 105-distance);
//Cayenne.virtualWrite(11, y, "t1", "null");
Cayenne.virtualWrite(1, y, "analog_sensor", "null");
//HCSR04 N°2
// Clears the trigPin N°2
digitalWrite(trigPin2, LOW);
delayMicroseconds(2);
// Sets the trigPin N°2 on HIGH state for 10 micro seconds
digitalWrite(trigPin2, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin2, LOW);
// Reads the echoPin N°2, returns the sound wave travel time in microseconds
duration2 = pulseIn(echoPin2, HIGH);
// Calculating the distance N°2
distance2 = ((duration2 * 0.034) / 2)-10;
// Prints the distance N°2 on the Serial Monitor
Serial.print("Distance2: ");
Serial.println(distance2);
y2 = map(distance2, 95, 10, 0, 100);
y2 = constrain(y2, 0, 100);
delay(5000);
if (millis() - lastMillis2 > 10000) {
lastMillis2 = millis();
//Cayenne.virtualWrite(20, 105-distance2);
//Cayenne.virtualWrite(21, y2, "t1", "null");
Cayenne.virtualWrite(2, y2, "analog_sensor", "null");
// do something
}
}
}
}
// This function is called when the Cayenne widget requests data for the Virtual Pin.
CAYENNE_OUT(V1)
{
// Send the command to get temperatures.
sensors.requestTemperatures();
// This command writes the temperature in Celsius to the Virtual Pin.
//Cayenne.virtualWrite(VIRTUAL_PIN, sensors.getTempCByIndex(0));
// To send the temperature in Fahrenheit use the corresponding code below.
Cayenne.virtualWrite(VIRTUAL_PIN1, sensors.getTempFByIndex(0));
}
CAYENNE_OUT(V2)
{
// Send the command to get temperatures.
sensors.requestTemperatures();
// This command writes the temperature in Celsius to the Virtual Pin.
//Cayenne.virtualWrite(VIRTUAL_PIN, sensors.getTempCByIndex(0));
// To send the temperature in Fahrenheit use the corresponding code below.
Cayenne.virtualWrite(VIRTUAL_PIN2, sensors.getTempFByIndex(1));
}
CAYENNE_CONNECTED()
{
CAYENNE_LOG("Connection established");
}
The error :
