Hi there, need a help with my esp32 dht11 connection...The error showing as below

Need Help With My Project
21

Where do you call that void ?

23

Maybe you should start from the beginning.
Post your proper code, details of your board, which pins you’re using to connect your sensor, details of what you’ve set-up in your app project, copy and paste your serial output and explain in words what problems you’re experiencing, what things you’ve tried, and what results you’ve observed.

Pete.

1 Like
24 
#define BLYNK_PRINT Serial
 
 

#include <BlynkSimpleEsp32.h>
#include <DHT.h>
 
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "8ydYe91_SqXfyPmWjiGALbQTCIXT1CKy";
 
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "eduroam-2G";
char pass[] = "*******";
 
#define DHTPIN 13          // Connect DHT sensor to GPIO 13
 
// Uncomment whatever type you're using!
#define DHTTYPE DHT11     // DHT 11
//#define DHTTYPE DHT22   // DHT 22, AM2302, AM2321
//#define DHTTYPE DHT21   // DHT 21, AM2301
 
DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;
 
// This function sends Arduino's up time every second to Virtual Pin (5).
// In the app, Widget's reading frequency should be set to PUSH. This means
// that you define how often to send data to Blynk App.
void sendSensor()
{
  float h = dht.readHumidity();
  float t = dht.readTemperature(); // or dht.readTemperature(true) for Fahrenheit
 
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V5, t);
  Blynk.virtualWrite(V6, h);
}
 
void setup()
{
  // Debug console
  Serial.begin(115200);
   // Set WiFi to station mode and disconnect from an AP if it was previously connected
    WiFi.mode(WIFI_STA);
    WiFi.disconnect();
    delay(100);
     Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, pass);
  int wifi_ctr = 0;
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("WiFi connected");

    Serial.println("Setup done");
 
  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(172,18,91,37), 8080);
 
  dht.begin();
 
  // Setup a function to be called every second
  timer.setInterval(1000L, sendSensor);
}
 
void loop()
{
 
    
  Blynk.run();
  timer.run();
}

This is my latest code and the error is such as below…

error3
error3.PNG1307×440 13.9 KB

25

Are you sure that your ESP32 is ok ?

Guru Meditation Error: Core 0 panic’ed, not Blynk related .
Try to disconnect all pin of DHT11 (VCC included ) and see what happens.

26

I don’t think you’ve understood what I’ve asked.

I’m taking a step back from this thread.
Best of luck with resolving your issue.

Pete.

2 Likes