Underwater cooling control device automatic roof Solar energy with system iot

Read this before creating new topic:

  1. Search forum for similar topics
  2. Check https://docs.blynk.io
  3. Add details :
    • Hardware model + communication type. For example: ESP32
    • Smartphone OS (iOS or Android) + OS version
    • Blynk server region
    • Blynk Library version
    • Post your FORMATTED sketch code. Remove your AUTH TOKEN from code. Don’t post screenshots
    • Post your serial monitor output when experiencing some issues

:warning: If you don’t format your code, your topic can be deleted by moderators.

Here is a correct example of code formatting:

//#define BLYNK_TEMPLATE_ID           "TMPxxxxxx"
//#define BLYNK_TEMPLATE_NAME         "Device"
#include "BlynkEdgent.h"

void setup()
{
  Serial.begin(115200);
  delay(100);
  BlynkEdgent.begin();
}

void loop() {
  BlynkEdgent.run();
}

The idea is that you provide the information that is requested here:

And that you explain what issue(s) you are having, and what steps you’ve taken so far to try to resolve those issues.

Your post tells us nothing about your hardware, software or what you need help with.
I’d suggest that you edit your post and fill-in the blanks.

Pete.