1307 1602 按键 精巧用法

1307接线

代马部分
#include <Wire.h>
#include <RTClib.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
void printDateTime(DateTime dateTime);
int Y=18;
int M=10;
int D=04;
int H=11;
int F=12;
int S=00;
int x=00;
int y=00;
int z=00;
int m=00;
int n=00;
#define BUTTON 12 //定义按钮开关引脚为12

int val = 0; //变量val用来储存按钮状态

int old_val = 0; //暂存val变量的上一个时间单位

int state = 0; //0
//创建实例
RTC_DS1307 RTC;

const int buttonPin2 = 9;
const int buttonPin3 = 10;

int buttonState1= 0;
int buttonState2= 0;
int buttonState3= 0;
void setup (void){
pinMode (BUTTON,INPUT);

pinMode(buttonPin2, INPUT);
pinMode(buttonPin3, INPUT);
Serial.begin(9600);
//初始化总线
Wire.begin();
//初始化实时时钟
RTC.begin();
lcd.init(); // initialize the lcd

// Print a message to the LCD.
lcd.backlight();

}

void loop() {
val = digitalRead(BUTTON); //读取按钮状态并储存
if (val==0){
z=z+1;
if(z>4){
z=1;
}
}
buttonState2 = digitalRead(buttonPin2);
buttonState3 = digitalRead(buttonPin3);
if((val == HIGH)&&(old_val == LOW)){

state =1-state;

delay(40); //延时简单抗抖动

}

old_val = val; //val下载已经是旧的了，让我们暂存一下
DateTime now = RTC.now();
//通过串口传送当前的日期和时间
printDateTime(now);
delay(100);

if (Serial.available() > 0) {

int instruct = Serial.read();

switch (instruct) {

case 'S':
RTC.set(RTC_YEAR,18); //设置成17年
RTC.set(RTC_MONTH, M); //设置成4月
RTC.set(RTC_DAY, D); //设置成18日
RTC.set(RTC_HOUR, H); //设置成9时
RTC.set(RTC_MINUTE, F); //设置成39分
RTC.set(RTC_SECOND, S); //设置成01秒
break;
}
}

}

void printDateTime(DateTime dateTime) {
//传送年份
Serial.print(dateTime.year(), DEC);
Serial.print('/');
//传送月份
Serial.print(dateTime.month(), DEC);
Serial.print('/');
//传送月份中的第几天
Serial.print(dateTime.day(), DEC);
Serial.print(' ');
//传送小时
Serial.print(dateTime.hour(), DEC);
Serial.print(':');
//传送分钟
Serial.print(dateTime.minute(), DEC);
Serial.print(':');
//传送秒
Serial.print(dateTime.second(), DEC) ;Serial.print('/');Serial.print( x);Serial.print('/');Serial.print( y);Serial.print('/');Serial.print(state);Serial.print(z);Serial.print('/');Serial.print( buttonState2);Serial.print('/');Serial.print( buttonState3);
Serial.println();
buttonState1 = digitalRead(buttonPin2);
buttonState2 = digitalRead(buttonPin2);
buttonState3 = digitalRead(buttonPin3);
if ((z == 1)&&(buttonState2==0))
{
x=x+1;
delay(40);
}
if ((z == 1)&&(buttonState3==0))
{
y=y+1;
delay(40);
}
if ((z == 2)&&( buttonState2==0))
{
x=x-1;
delay(40);
}
if ((z == 2 )&&(buttonState3==0))
{
y=y-1; delay(40);
}

if ((z== 3)&&(buttonState2==0))
{
m=m+1;
delay(40);
}
if ((z==3)&&(buttonState3==0))
{
n=n+1;
delay(40);
}
if ((z == 4)&&( buttonState2==0))
{
m=m-1;
delay(40);
}
if ((z== 4 )&&(buttonState3==0))
{
n=n-1; delay(40);
}

if ((dateTime.hour()==m & dateTime.minute()|| (dateTime.hour()==x & dateTime.minute()==y)){
digitalWrite(6, HIGH);
}
else {

digitalWrite(6, LOW);

}

lcd.setCursor(2,0);
lcd.print(dateTime.month());
lcd.setCursor(4,0);
lcd.print("-");
lcd.setCursor(6,0);
lcd.print(dateTime.day());
lcd.setCursor(0,1);

lcd.print(dateTime.hour());
lcd.setCursor(2,1);
lcd.print(":");

lcd.setCursor(3,1);
lcd.print(dateTime.minute());
lcd.setCursor(5,1);
lcd.print(":");
lcd.setCursor(6,1);
lcd.print(dateTime.second());

lcd.setCursor(10,1);
lcd.print(x);
lcd.setCursor(12,1);
lcd.print(":");
lcd.setCursor(14,1);
lcd.print(y);
lcd.setCursor(10,0);
lcd.print(m);
lcd.setCursor(12,0);
lcd.print(":");
lcd.setCursor(14,0);
lcd.print(n);
}

用到了i2c的 1602

1307的库文件链接：https://pan.baidu.com/s/18V3KQFBlRD_sasqKUAc55g 密码：cp9r