There's no output on my serial monitor

Projects Programming
1

hi guys, so i have this code

#define BLYNK_PRINT Serial    
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <SimpleTimer.h>
#define AOUT_PIN A0  // The ESP8266 pin ADC0 that connects to AOUT pin of moisture sensor
int pump = 0;   // Pin 0 pada NodeMCU (pin 3)

#define BLYNK_TEMPLATE_ID "T
#define BLYNK_TEMPLATE_NAME ""
#define BLYNK_AUTH_TOKEN ""
char auth[] = ";  // Enter your Auth token
char ssid[] = "";  // Enter your WIFI name
char pass[] = "";  // Enter your WIFI password (HOTSPOT PASSWORD)
#include <BlynkSimpleEsp8266.h>

SimpleTimer timer;
WidgetLCD lcd(V1);

void setup() {
  Serial.begin(9600);
  pinMode(pump, OUTPUT);
  lcd.clear();
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, bacasensor);
}

void bacasensor() {
  int value = analogRead(AOUT_PIN); // read the analog value from sensor
  int persenSensor = 0;
  persenSensor = ((1024 - value) / 10.23);  // Calculate moisture level in percentage
  Serial.print("Moisture: ");
  Serial.println(persenSensor);
  lcd.print(0, 0, "KEADAAN"); 
  lcd.print(0, 1, "PUMP");
  Blynk.virtualWrite(V0, persenSensor);

  if (persenSensor == 0) {
    Serial.println("KERING");
    lcd.print(8, 0, "KERING");
    lcd.print(5, 1, "ON ");
    digitalWrite(pump, LOW);  // Turn off the pump
    for (int x = 0; x <= 10; x++) {
      lcd.print(9, 1, x); 
      delay(500);
    }
    lcd.clear();
    digitalWrite(pump, HIGH);  // Turn on the pump
    lcd.print(0, 0, "AIR MERESAP");
    lcd.print(0, 1, "WAIT");
    for (int x = 9; x > 0; x--) {
      lcd.print(9, 1, x); 
      delay(500);
    }
    lcd.clear();
  } else if (persenSensor > 40 && persenSensor < 50) {
    Serial.println("NORMAL");
    lcd.print(8, 0, "NORMAL");
    lcd.print(5, 1, "OFF");
    digitalWrite(pump, HIGH);  // Keep the pump off if the soil is normal
  } else if (persenSensor < 40) {
    Serial.println("BASAH");
    lcd.print(8, 0, "BASAH");
    lcd.print(5, 1, "OFF");
    digitalWrite(pump, HIGH);  // Keep the pump off if the soil is wet
  }
}

void loop() {
  bacasensor();
  Blynk.run();
  timer.run();
  delay(100);
}

before i try it on blink, i want to try the message and the soil sensor first, theres no such an error but when i open my serial monitor theres no message at all.... am i doing it wrong?

2

Does a simple sketch like below give you output in the serial monitor?

void setup()
{
  Serial.begin(9600);
  Serial.println();
  Serial.println("Hello world");
}

void loop()
{
  delay(1000);
  Serial.println(millis()):
}

Is your board an ESP8266 based board; just making sure.
Less relevant but nice to know is the version of the IDE that you're using as well as the operating system.

3

Did you set Serial Monitor to this same speed?

4

yes its nodeMCU

5

I did

6

Put a Serial.println("in setup()") immediately after the Serial.begin(). Does that appear?

If so, add a similar one at the end of setup(). If that does not appear, put even more in setup() to figure out where the code is getting stuck.