写ARDUINO适用于 uno r3开发板的程序，通过光控控制黄红绿LED灯，并在液晶显示屏显示实时时间，并让舵机转动

好的，以下是一个简单的 ARDUINO 程序，可以通过光敏电阻控制三个 LED 灯的亮灭，同时在液晶显示屏上显示实时时间，最后让一个舵机旋转：

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

#define RED_LED 9
#define YELLOW_LED 10
#define GREEN_LED 11
#define LIGHT_SENSOR A0

LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo myservo;

void setup() {
  pinMode(RED_LED, OUTPUT);
  pinMode(YELLOW_LED, OUTPUT);
  pinMode(GREEN_LED, OUTPUT);
  myservo.attach(3);
  lcd.init();
  lcd.backlight();
}

void loop() {
  int light_value = analogRead(LIGHT_SENSOR);
  int hour = hour();
  int minute = minute();
  int second = second();
  lcd.setCursor(0, 0);
  lcd.print("Time: ");
  lcd.print(hour);
  lcd.print(":");
  lcd.print(minute);
  lcd.print(":");
  lcd.print(second);
  if (light_value < 300) {
    digitalWrite(RED_LED, HIGH);
    digitalWrite(YELLOW_LED, LOW);
    digitalWrite(GREEN_LED, LOW);
    myservo.write(90);
  } else if (light_value >= 300 && light_value < 700) {
    digitalWrite(RED_LED, LOW);
    digitalWrite(YELLOW_LED, HIGH);
    digitalWrite(GREEN_LED, LOW);
    myservo.write(0);
  } else {
    digitalWrite(RED_LED, LOW);
    digitalWrite(YELLOW_LED, LOW);
    digitalWrite(GREEN_LED, HIGH);
    myservo.write(180);
  }
  delay(1000);
}

注意，这段代码默认使用 I2C 接口的液晶显示屏和舵机。如果使用其他型号或者接口的液晶显示屏或舵机，请相应地修改代码。另外，光敏电阻的阈值需要根据实际情况调整。