matrix->clear(); does not work.

[GeorgeFlorian]

Board: ESP32

I have this in void main()

          matrix->setTextColor(LED_CYAN_HIGH);
          matrix->setFont(NULL);
          matrix->setCursor(1,0);
          matrix->print("Home page");
          matrix->setCursor(0,8);
          matrix->print("found at:");
          matrix->setCursor(0,16);
          matrix->setTextWrap(true);
          matrix->setTextColor(LED_PURPLE_HIGH);
          matrix->print(IP_copy);
          matrix->show();

and this code inside void loop():

if(WiFi.status() != WL_CONNECTED) {
      matrix->clear();
      delay(1000);
      Serial.println("There is no WiFi Connection !");
    }

I am basically checking if I have a WiFi Connection. If I don't, I want the display to display nothing.

While the Serial.println() works, the matrix->clear(); does not clear the text from the display.

[marcmerlin]

matrix->clear() only clears the framebuffer. You still need to run matrix->show to sync the framebuffer to the display

[GeorgeFlorian]

You are absolutely right ! Thank you !