基于Arduino的多功能数字时钟

2023-07-21 01:12| 来源: 网络整理| 查看: 265

实现功能：

显示时间、日期和星期断电保存时间通过按钮设置时间、日期整点响铃自定义闹钟显示温度自定义报警温度按键功能：按选择键进入设置时间功能；同时按 + - 键进入闹钟和报警温度设置功能；再按选择键光标跳动，光标跳到哪当前的参数即可通过加减键修改。

实验所需器件： Arduino开发板或Atmega328P芯片、DS1302时钟芯片、温度传感器DS18b20、蜂鸣器、不带锁开关、LCD1602、10K可调电阻、10K电阻（可不接，即DS18b20端口的电阻可去掉，不影响读数）

Proteus ISIS 仿真图：这里写图片描述依赖库下载: DS1302 OneWire DallasTemperature

依赖库的安装方法，如不清楚，可以参考官方文档《安装其他的Arduino库》

实物图：这里写图片描述

程序如下：

/* * * LCD RS pin to digital pin 12 * LCD Enable pin to digital pin 11 * LCD D4 pin to digital pin 5 * LCD D5 pin to digital pin 4 * LCD D6 pin to digital pin 3 * LCD D7 pin to digital pin 2 * LCD R/W pin to ground * LCD VSS pin to ground * LCD VCC pin to 5V * */ #include #include //LCD1602显示头文件 #include #include //温度传感器DS18B20头文件 #define ONE_WIRE_BUS A3 //DS18B20 信号端口 OneWire oneWire(ONE_WIRE_BUS); DallasTemperature sensors(&oneWire); LiquidCrystal lcd(12, 11, 5, 4, 3, 2); #define choose A0 //选择端口 #define add A1 //加 #define minus A2 //减 #define Tone 13 //蜂鸣器端口 uint8_t CE_PIN = 8; //DS1302 RST端口 uint8_t IO_PIN = 9; //DS1302 DAT端口 uint8_t SCLK_PIN = 10; //DS1302 CLK端口 DS1302 rtc(CE_PIN, IO_PIN, SCLK_PIN); //创建 DS1302 对象 unsigned long seconds; int s = 0, m = 0, h = 0, d = 0, mon = 0, y = 0; //时间进位 int second = 0, minute = 0, hour = 0, day = 0, month = 0, year = 0; //当前时间 int SECOND = 0, MINUTE = 0, HOUR = 0, DAY = 0, MONTH = 0, YEAR = 0; //初始时间 int chose = 0, alarm_choose = 0 ,ButtonDelay = 10, frequence = 2093; int alarm_hour = 7, alarm_minute = 30, alarm_second = 0; //闹钟时间 double Temperatures, Temp_Alarm = 30 ; void setup(){ for(int i = 2;i lcd.setCursor(col, row); if(num int days = 0; if (month != 2){ switch(month){ case 1: case 3: case 5: case 7: case 8: case 10: case 12: days = 31; break; case 4: case 6: case 9: case 11: days = 30; break; } }else{ //闰年 if(year % 4 == 0 && year % 100 != 0 || year % 400 == 0){ days = 29; } else{ days = 28; } } return days; } /** 计算当月天数 */ void Day(){ int days = Days(year,month); int days_up; if(month == 1){ days_up = Days(year - 1, 12); } else{ days_up = Days(year, month - 1); } day = (DAY + d) % days; if(day == 0){ day = days; } if((DAY + d) == days + 1 ){ DAY -= days; mon++; } if((DAY + d) == 0){ DAY += days_up; mon--; } FormatDisplay(8,0,day); } /** 计算月份 */ void Month(){ month = (MONTH + mon) % 12; if(month == 0){ month = 12; } y = (MONTH + mon - 1) / 12; FormatDisplay(5,0,month); lcd.setCursor(7, 0); lcd.print('-'); } /** 计算年份 */ void Year(){ year = ( YEAR + y ) % 9999; if(year == 0){ year = 9999; } lcd.setCursor(0, 0); if(year lcd.print("0"); } if(year if(m == 1){ m = 13; } if(m == 2){ m = 14; } int week = (d+2*m+3*(m+1)/5+y+y/4-y/100+y/400)%7+1; String weekstr = ""; switch(week){ case 1: weekstr = "Mon. "; break; case 2: weekstr = "Tues. "; break; case 3: weekstr = "Wed. "; break; case 4: weekstr = "Thur. "; break; case 5: weekstr = "Fri. "; break; case 6: weekstr = "Sat. "; break; case 7: weekstr = "Sun. "; break; } lcd.setCursor(11, 0); lcd.print(weekstr); } /** 显示时间、日期、星期 */ void Display() { time(); Day(); Month(); Year(); Week(year,month,day); } /** 显示光标 */ void DisplayCursor(int rol, int row) { lcd.setCursor(rol, row); lcd.cursor(); delay(100); lcd.noCursor(); delay(100); } /** 设置初始时间 */ void set(int y, int mon, int d, int h, int m, int s){ YEAR = y; MONTH = mon; DAY = d; HOUR = h; MINUTE = m; SECOND = s; } /** 通过按键设置时间 */ void Set_Time(int rol, int row, int &Time){ DisplayCursor(rol, row); if(digitalRead(add) == LOW){ delay(ButtonDelay); if(digitalRead(add) == LOW){ Time ++; } Display(); } if(digitalRead(minus) == LOW){ delay(ButtonDelay); if(digitalRead(minus) == LOW){ Time --; } Display(); } } /** 按键选择 */ void Set_Clock(){ if(digitalRead(choose)==LOW){ lcd.setCursor(9, 1); lcd.print("SetTime"); while(1){ if(digitalRead(choose) == LOW){ delay(ButtonDelay); if(digitalRead(choose) ==LOW){ chose++; } } seconds = millis()/1000; Display(); if(chose == 1){ Set_Time(1, 1, HOUR); //SetHour }else if(chose == 2){ Set_Time(4, 1, MINUTE); //SetMinute }else if(chose == 3){ Set_Time(7, 1, SECOND); //SetSecond }else if(chose == 4){ Set_Time(9, 0, DAY); //SetDay }else if(chose == 5){ Set_Time(6, 0, MONTH); // SetMonth }else if(chose == 6){ Set_Time(3, 0, YEAR); //SetYear }else if(chose >= 7) { chose = 0; break; } } } } /** 设置闹钟小时 */ void Set_Alarm_Hour(){ DisplayCursor(1, 1); if(digitalRead(add) == LOW){ delay(ButtonDelay); if(digitalRead(add) == LOW){ alarm_hour ++; if(alarm_hour == 24){ alarm_hour = 0; } FormatDisplay(0,1,alarm_hour); } } if(digitalRead(minus) == LOW){ delay(ButtonDelay); if(digitalRead(minus) == LOW){ alarm_hour --; if(alarm_hour == -1){ alarm_hour = 23; } FormatDisplay(0,1,alarm_hour); } } } /** 设置闹钟分钟 */ void Set_Alarm_Minute(){ DisplayCursor(4, 1); if(digitalRead(add) == LOW) { delay(ButtonDelay); if(digitalRead(add) == LOW){ alarm_minute ++; if(alarm_minute == 60){ alarm_minute = 0; } FormatDisplay(3,1,alarm_minute); } } if(digitalRead(minus) == LOW){ delay(ButtonDelay); if(digitalRead(minus) == LOW){ alarm_minute --; if(alarm_minute == -1){ alarm_minute = 59; } FormatDisplay(3,1,alarm_minute); } } } /** 设置报警温度 */ void Set_Alarm_Temp(){ DisplayCursor(10, 1); if(digitalRead(add) == LOW) { delay(ButtonDelay); if(digitalRead(add) == LOW){ Temp_Alarm ++; } } if(digitalRead(minus) == LOW){ delay(ButtonDelay); if(digitalRead(minus) == LOW){ Temp_Alarm --; } } } /** 进入报警设置 */ void Set_Alarm(){ if(digitalRead(add) == LOW && digitalRead(minus) == LOW){ alarm_hour = hour; alarm_minute = minute; //alarm_choose = 1; lcd.setCursor(0, 0); lcd.print("set alarm "); lcd.setCursor(6, 1); lcd.print("00"); //闹钟秒数 while(1){ if(digitalRead(choose) == LOW){ delay(ButtonDelay); if(digitalRead(choose) == LOW){ alarm_choose++; } } lcd.setCursor(9, 1); lcd.print(Temp_Alarm); lcd.setCursor(14, 1); lcd.print((char)223); //显示o符号 lcd.setCursor(15, 1); lcd.print("C"); //显示字母C if(alarm_choose == 1){ Set_Alarm_Hour(); }else if(alarm_choose == 2){ Set_Alarm_Minute(); }else if(alarm_choose == 3){ Set_Alarm_Temp(); }else if(alarm_choose >= 4){ alarm_choose = 0; break; } } } } /** 正点蜂鸣 */ void Point_Time_Alarm(){ if(minute == 0 && second == 0){ tone(Tone,frequence); delay(500); noTone(Tone); } } /** 闹钟指定时间蜂鸣 */ void Clock_Alarm(){ if(hour == alarm_hour && minute == alarm_minute && second == alarm_second){ tone(Tone,frequence); delay(5000); noTone(Tone); } } /** 获取DS18B20温度 */ void GetTemperatures(){ sensors.requestTemperatures(); // Send the command to get temperatures Temperatures = sensors.getTempCByIndex(0); lcd.setCursor(9, 1) ; lcd.print(Temperatures); //获取温度 lcd.setCursor(14, 1); lcd.print((char)223); //显示o符号 lcd.setCursor(15, 1); lcd.print("C"); //显示字母C } /** 超过指定温度报警 */ void Temperatures_Alarm(){ if(Temperatures >= Temp_Alarm){ tone(Tone,frequence); delay(500); noTone(Tone); } } void loop() { seconds = millis()/1000; //获取单片机当前运行时间 Display(); //显示时间 Set_Clock(); //设置时间 Set_Alarm(); //设置闹钟 Point_Time_Alarm(); //正点蜂鸣 Clock_Alarm(); //闹钟时间蜂鸣 GetTemperatures(); //获取DS18B20温度 Temperatures_Alarm(); //超过指定温度报警 Time t(year, month, day, hour, minute, second, 1); //断电将单片机的当前时间写到DS1302芯片中 rtc.time(t); }

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