HelloMyfriendWemeetAgain!! — Arduino Uno simulation

An interactive Arduino Uno circuit simulation you can run free in your browser on Velxio, by ratipong-7176.

Components

• Grove Spdt Relay 30A x2
• Pushbutton x2
• Slide Switch x2
• Dht22
• Grove Soil Moisture
• Lcd2004 I2C
• Photoresistor Sensor
• Power Supply

Sketch code

#include <Wire.h>
#include <DHT.h>
#include <LiquidCrystal_I2C.h>
#include <RtcDS3231.h>
#include "PinAndValue.h"

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 20, 4);
RtcDS3231<TwoWire> Rtc(Wire);
bool wasError(const char* errorTopic = "") {
  uint8_t error = Rtc.LastError();
  if (error != 0) {
    Serial.print("[");
    Serial.print(errorTopic);
    Serial.print("] WIRE communications error (");
    Serial.print(error);
    Serial.print(") : ");

    switch (error) {
      case Rtc_Wire_Error_None:
        Serial.println("(none?!)");
        break;
      case Rtc_Wire_Error_TxBufferOverflow:
        Serial.println("transmit buffer overflow");
        break;
      case Rtc_Wire_Error_NoAddressableDevice:
        Serial.println("no device responded");
        break;
      case Rtc_Wire_Error_UnsupportedRequest:
        Serial.println("device doesn't support request");
        break;
      case Rtc_Wire_Error_Unspecific:
        Serial.println("unspecified error");
        break;
      case Rtc_Wire_Error_CommunicationTimeout:
        Serial.println("communications timed out");
        break;
    }
    return true;
  }
  return false;
}
void setup() {
  Serial.begin(9600);
  pinMode(Buzzer, OUTPUT);
  pinMode(Relay1, OUTPUT);
  pinMode(Relay2, OUTPUT);
  pinMode(Button1Pin, INPUT_PULLUP);
  pinMode(Button2Pin, INPUT_PULLUP);
  pinMode(SwitchPin, INPUT_PULLUP);
  dht.begin();
  lcd.init();
  lcd.backlight();
  Serial.print(__DATE__);
  Serial.println(__TIME__);
  Rtc.Begin();
  lcd.createChar(0, heart);
  digitalWrite(Buzzer, LOW);
  delay(1000);
  digitalWrite(Buzzer, HIGH);
#if defined(WIRE_HAS_TIMEOUT)
  Wire.setWireTimeout(3000 /* us */, true /* reset_on_timeout */);
#endif
  RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);
  printDateTime(compiled);
  Serial.println();

  if (!Rtc.IsDateTimeValid()) {
    if (!wasError("setup IsDateTimeValid")) {
      Serial.println("RTC lost confidence in the DateTime!");
      Rtc.SetDateTime(compiled);
    }
  }
  if (!Rtc.GetIsRunning()) {
    if (!wasError("setup GetIsRunning")) {
      Serial.println("RTC was not actively running, starting now");
      Rtc.SetIsRunning(true);
    }
  }
  RtcDateTime now = Rtc.GetDateTime();
  if (!wasError("setup GetDateTime")) {
    if (now < compiled) {
      Serial.println("RTC is older than compile time, updating DateTime");
      Rtc.SetDateTime(compiled);
    } else if (now > compiled) {
      Serial.println("RTC is newer than compile time, this is expected");
    } else if (now == compiled) {
      Serial.println("RTC is the same as compile time, while not expected all is still fine");
    }
  }
  
  Rtc.Enable32kHzPin(false);
  wasError("setup Enable32kHzPin");
  Rtc.SetSquareWavePin(DS3231SquareWavePin_ModeNone);
  wasError("setup SetSquareWavePin");
  lcd.clear();
  lcd.home();
  lcd.print("PLANT SCIENCE");
  lcd.setCursor(0,1);
  lcd.write(0);
  delay(2000);
  lcd.clear();
}

void loop() {
  float Temp = dht.readTemperature();
  float Humi =