arduino + 1602 +dht11 + sr04 + ds1307-#include <LiquidCrystal.h>

LiquidCrystal lcd(2,3,4,5,6,7)

/*

1602

vss to gnd

vdd to 5v

RS TO PIN2

RW TO GND

E TO PIN3

D4 TO PIN4

D5 TO PIN5

D6 TO PIN6

D7 TO PIN7

A TO 5V

K TO GND

*/





#include "Wire.h"

#define DS1307_ADDRESS 0x68

byte zero = 0x00　//workaround for issue#527

/*

DS1307

SDA TO PIN A4

SCL TO PIN A5

VCC TO 5V

GND TO GND

*/



#include <dht11.h>

dht11 DHT11

#define DHT11PIN 8 //DHT11 PIN 3 连接UNO 3



#define TRIGPIN 9

#define ECHOPIN 10





long ping() {

　digitalWrite(TRIGPIN, LOW)

　delayMicroseconds(2)

　digitalWrite(TRIGPIN, HIGH)

　delayMicroseconds(10)

　digitalWrite(TRIGPIN, LOW)

　return pulseIn(ECHOPIN, HIGH)/58

}

void setup() {

　Wire.begin()

　Serial.begin(9600)

　//setDateTime()　//MUST CONFIGURE IN FUNCTION

　lcd.begin(16, 2)

　//lcd.setCursor(0,1)

　//lcd.write("LIGHT: ")

　pinMode(TRIGPIN, OUTPUT)

　pinMode(ECHOPIN, INPUT)

　pinMode(13, OUTPUT)

}



void loop() {

　//int sensorValue