Blynk with NODEMCU and Timer

Projects Programming
7

To make it easier to analyse the serial output you should use serial.println()
for each and every printing.

  if (time_blynk == final_time && feedback == 0 && auto_feed == 1) {
    Serial.print("MotorLigado");
    digitalWrite(motor, HIGH);
    delay(2000 * qtd);
    Serial.print("MotorDesligado");
    digitalWrite(motor, LOW);
    feedback = 1;
  }

change to

  if (time_blynk == final_time && feedback == 0 && auto_feed == 1) {
    Serial.println("MotorLigado"); // <<<=== USE printLN
    digitalWrite(motor, HIGH);
    delay(2000 * qtd);
    Serial.println("MotorDesligado"); // <<<=== USE printLN
    digitalWrite(motor, LOW);
    feedback = 1;
  }

as you are using a delay(2000) even multiplied with a factor
as long as this delay() is executed there willbe no communication with Blynk
I'm pretty sure that a code-template using

  BlynkEdgent.run();
  timeClient.update();

has a comment
call BlynkEdgent.run(); repeatedly and very often

You wil have to change your code to be completely non -blocking.

This requires a completely different thinking than using delay()

You can read about it here