No matching function for call to 'LiquidCrystal_I2C::begin(int, int)'

Need Help With My Project
1 
#define BLYNK_PRINT Serial
#include <Blynk.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <WiFiUdp.h>  // For OTA
#include <ArduinoOTA.h>  // For OTA
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>  // Library for LCD
#include <Wire.h>


#define ONE_WIRE_BUS 13
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

//#define I2C_SDA_PIN 21  // Using GPIO21 for SDA pin
//#define I2C_SCL_PIN 22  // Using GPIO22 for SCL pin
#define WATER_PUMP_PIN 12  // Replace 12 with the actual pin number you are using for the water pump relay
#define BLYNK_TEMPLATE_ID "TMPL6dyKizI97"
#define BLYNK_TEMPLATE_NAME "SMART FARMING 2"
#define BLYNK_AUTH_TOKEN "94udGHGv3SN4_uGwYAsOMNiNbYbyMzuE"

#define moisture_sens 34  // Analog pin for soil moisture sensor

#define VPIN_SENS   V0  // Blynk virtual pin for soil moisture level
//#define LCD_ADDRESS 0x27  // I2C address for the LCD
//#define LCD_ROWS 2  // Number of rows on the LCD
//#define LCD_COLUMNS 16  // Number of columns on the LCD

char auth[] = "94udGHGv3SN4_uGwYAsOMNiNbYbyMzuE";  // Auth Token in the Blynk App
char ssid[] = "Redmi";  // WiFi SSID
char pass[] = "1234567890";  // WiFi password

LiquidCrystal_I2C lcd(0x27, 16, 2);

int sens1_value = 0;
int outputvalue1 = 0;
bool pumpRunning = false;
unsigned long pumpStartTime = 0;
const unsigned long pumpDuration = 3000;  // 3 seconds
const unsigned long pumpStopTime = 3000;  // 3 seconds

BlynkTimer timer;

void sendSensor()
{
  // Request temperature from all devices on the data line
  sensors.requestTemperatures();

  float tempC = sensors.getTempCByIndex(0);
  
  int moistureValue = analogRead(moisture_sens);
  int moistureLevel = map(moistureValue, 0, 4095, 100, 0);  // Reverse the mapping to get accurate moisture level

  Serial.print("Celsius temperature: ");
  Serial.print(tempC);
  Serial.print(" - Moisture Level: ");
  Serial.print(moistureLevel);
  Serial.println("%");

  // Display temperature and moisture level on the LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(tempC);
  lcd.print("C");

  lcd.setCursor(0, 1);
  lcd.print("Moisture: ");
  lcd.print(moistureLevel);
  lcd.print("%");

  // Send temperature and moisture level to Blynk
  Blynk.virtualWrite(V1, tempC);
  Blynk.virtualWrite(V2, moistureLevel);
}

void setup()
{
  // Debug console
  Serial.begin(9600);
  sensors.begin();

  Wire.begin ( 21, 22); // Initialize the I2C interface with the chosen pins
  
  lcd.begin(16,2);  // Initialize the LCD display with the specified number of columns and rows
  lcd.setBacklight(HIGH);

  pinMode(WATER_PUMP_PIN, OUTPUT);  // Set the water pump pin as an output

  Blynk.begin(auth, ssid, pass);
  ArduinoOTA.begin();  // For OTA
  timer.setInterval(100L, sendSensor);
}

void loop()
{
  Blynk.run();
  ArduinoOTA.handle();  // For OTA
  timer.run();

  unsigned long currentMillis = millis();

  if (!pumpRunning && outputvalue1 < 66) {
    // Soil moisture level is low and pump is not running, start the pump
    pumpRunning = true;
    pumpStartTime = currentMillis;
    digitalWrite(WATER_PUMP_PIN, HIGH);
  } else if (pumpRunning && currentMillis - pumpStartTime >= pumpDuration) {
    // Pump has been running for the desired duration, stop the pump
    digitalWrite(WATER_PUMP_PIN, LOW);
    delay(pumpStopTime); // Wait for the specified stop time before checking moisture level
    pumpRunning = false;
  } else if (!pumpRunning && outputvalue1 >= 70) {
    // Soil moisture level is high and pump is not running, stop the pump
    digitalWrite(WATER_PUMP_PIN, LOW);
  }
}

this is the code for my smart farming system project. Upon compiling the code, i got errors which says:
"Arduino: 1.8.19 (Windows 10), Board: “DOIT ESP32 DEVKIT V1, 80MHz, 921600, None, Disabled”

C:\Users\Aiman\Desktop\FYP\Coding\smart farming system 2\sketch_may06d\sketch_may06d.ino: In function ‘void setup()’:

sketch_may06d:88:17: error: no matching function for call to ‘LiquidCrystal_I2C::begin(int, int)’

lcd.begin(16,2); // Initialize the LCD display with the specified number of columns and rows

             ^

In file included from C:\Users\Aiman\Desktop\FYP\Coding\smart farming system 2\sketch_may06d\sketch_may06d.ino:10:

C:\Users\Aiman\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master/LiquidCrystal_I2C.h:76:7: note: candidate: ‘void LiquidCrystal_I2C::begin()’

void begin();

   ^~~~~

C:\Users\Aiman\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master/LiquidCrystal_I2C.h:76:7: note: candidate expects 0 arguments, 2 provided

exit status 1

no matching function for call to ‘LiquidCrystal_I2C::begin(int, int)’

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.
"

can anyone help me to solve it?

2

When you post compiler error messages, serial output etc, you should use triple backticks at the beginning and end, the same way you do when posting code.

Clearly a syntax error with the command you’re using for the LCD library.
Presumably the code is designed for a different library to the one you’re using.

Not a Blynk related issue though.

Pete.

3

thank youu