arduino 智能浇花系统加代码

好的，以下是一个基于 Arduino 的智能浇花系统的代码：

// include the library code:
#include <LiquidCrystal.h>
#include <Wire.h>
#include <DS3231.h>
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

// set the datetime library object
RTClib RTC;

// set the BME280 library object
Adafruit_BME280 bme;

// define the pins for the water pump and the soil moisture sensor
int water_pump = 8;
int soil_moisture = A0;

// define the threshold values for the soil moisture reading
int dry_soil = 800;
int wet_soil = 400;

void setup() {
  // set up the LCD's number of columns and rows
  lcd.begin(16, 2);
  // initialize the RTC and set the time and date
  RTC.begin();
  RTC.adjust(DateTime(F(__DATE__), F(__TIME__))); // set the RTC datetime to the compile time
  // initialize the BME280 and print the sensor info to the LCD
  bme.begin(0x76);
  lcd.print("BME280:");
  lcd.setCursor(0,1);
  lcd.print(bme.readTemperature()); lcd.print(" C ");
  lcd.print(bme.readHumidity()); lcd.print(" % ");
  lcd.print(bme.readPressure() / 100.0F); lcd.print(" hPa");
  // set up the water pump pin
  pinMode(water_pump, OUTPUT);
}

void loop() {
  // read the current soil moisture level
  int current_soil_moisture = analogRead(soil_moisture);
  // print the current soil moisture level to the LCD
  lcd.setCursor(0,1);
  lcd.print("Soil Moisture:");
  lcd.print(current_soil_moisture);
  // check if the soil is dry and activate the water pump if necessary
  if(current_soil_moisture > dry_soil) {
    digitalWrite(water_pump, HIGH);
    lcd.setCursor(0,0);
    lcd.print("Watering the soil ");
  } else {
    digitalWrite(water_pump, LOW);
    lcd.setCursor(0,0);
    lcd.print("Soil is wet ");
  }
  // delay for 1 minute
  delay(60000);
}

该代码使用了 Arduino、RTC、BME280 以及液晶显示器等组件，可以实现自动浇花系统。代码读取土壤湿度传感器的值，根据实际情况来判断是否需要开启水泵来浇水。同时，该代码还可以读取环境数据，并将其显示在液晶屏幕上。