I tried another clock with alarm, but I want to jump to set alarm without set hour and date .
//Libraries
#include <Wire.h>
#include "RTClib.h"
#include <LiquidCrystal.h>
#include <EEPROM.h>
#include "ClosedCube_HDC1080.h"
ClosedCube_HDC1080 hdc1080;
//Connections and constants
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);//LiquidCrystal lcd(8,7,6,5,4,3); //LCD
RTC_DS1307 rtc; //DS1307 i2c
char daysOfTheWeek[7][12] = {"Sunday","Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
const int btSet = A0;
const int btAdj = A1;
const int btAlarm = A2;
const int buzzer = 8;
//const int shakeSensor = A3;
int temp = 0;
long interval = 300;
int melody[] = { 600, 800, 1000,1200 };
//Variables
int DD,MM,YY,H,M,S,set_state, adjust_state, alarm_state,AH,AM, shake_state;
int shakeTimes=0;
int i =0;
int btnCount = 0;
String sDD;
String sMM;
String sYY;
String sH;
String sM;
String sS;
String aH="12";
String aM="00";
String alarm = " ";
String stemp ;
String shdt;
String shdh;
String sdegreeChar;
long previousMillis = 0;
//Boolean flags
boolean setupScreen = false;
boolean alarmON=false;
boolean turnItOn = false;
void setup() {
//Init RTC and LCD library items
rtc.begin();
lcd.begin(16,2);
hdc1080.begin(0x40);
//Set outputs/inputs
pinMode(btSet,INPUT_PULLUP);
pinMode(btAdj,INPUT_PULLUP);
pinMode(btAlarm, INPUT_PULLUP);
pinMode(buzzer, OUTPUT);
//Check if RTC has a valid time/date, if not set it to 00:00:00 01/01/2018.
//This will run only at first time or if the coin battery is low.
if (! rtc.isrunning()) {
Serial.println("RTC is NOT running!");
// This line sets the RTC with an explicit date & time, for example to set
// January 1, 2018 at 00:00am you would call:
rtc.adjust(DateTime(2021, 12, 01, 00, 00, 0));
}
delay(100);
//Read alarm time from EEPROM memmory
AH=EEPROM.read(0);
AM=EEPROM.read(1);
//Check if the numbers that you read are valid. (Hours:0-23 and Minutes: 0-59)
if (AH>23){
AH=0;
}
if (AM>59){
AM=0;
}
}
void loop() {
temp = analogRead(A6);
temp = temp * 0.48828125;
stemp = temp;
shdt = hdc1080.readTemperature();
shdh = hdc1080.readHumidity();
sdegreeChar = String(char(223));
readBtns(); //Read buttons
getTimeDate(); //Read time and date from RTC
if (!setupScreen){
lcdPrint(); //Normanlly print the current time/date/alarm to the LCD
if (alarmON){
callAlarm(); // and check the alarm if set on
}
}
else{
timeSetup(); //If button set is pressed then call the time setup function
}
}
/*************** Functions ****************/
//Read buttons state
void readBtns(){
set_state = digitalRead(btSet);
adjust_state = digitalRead(btAdj);
alarm_state = digitalRead(btAlarm);
if(!setupScreen){
if (alarm_state==LOW){
if (alarmON){
alarm=" ";
alarmON=false;
}
else{
alarm="ALARM";
alarmON=true;
}
delay(500);
}
}
if (set_state==LOW){
if(btnCount<7){
btnCount++;
setupScreen = true;
if(btnCount==1){
lcd.clear();
lcd.setCursor(0,0);
lcd.print("------SET------");
lcd.setCursor(0,1);
lcd.print("-TIME and DATE-");
delay(2000);
lcd.clear();
}
}
else{
lcd.clear();
rtc.adjust(DateTime(YY, MM, DD, H, M, 0)); //Save time and date to RTC IC
EEPROM.write(0, AH); //Save the alarm hours to EEPROM 0
EEPROM.write(1, AM); //Save the alarm minuted to EEPROM 1
lcd.print("Saving....");
delay(2000);
lcd.clear();
setupScreen = false;
btnCount=0;
}
delay(500);
}
}
//Read time and date from rtc ic
void getTimeDate(){
if (!setupScreen){
DateTime now = rtc.now();
DD = now.day();
MM = now.month();
YY = now.year();
H = now.hour();
M = now.minute();
S = now.second();
}
//Make some fixes...
if (DD<10){ sDD = '0' + String(DD); } else { sDD = DD; }
if (MM<10){ sMM = '0' + String(MM); } else { sMM = MM; }
sYY=YY-2000;
if (H<10){ sH = '0' + String(H); } else { sH = H; }
if (M<10){ sM = '0' + String(M); } else { sM = M; }
if (S<10){ sS = '0' + String(S); } else { sS = S; }
if (AH<10){ aH = '0' + String(AH); } else { aH = AH; }
if (AM<10){ aM = '0' + String(AM); } else { aM = AM; }
}
//Print values to the display
void lcdPrint(){
//String line1 = sH+":"+sM+":"+sS+" | "+aH+":"+aM;
String line1 = sH+":"+sM+":"+sS+"|"+stemp+""+sdegreeChar+"C"+shdh+"%";//+stemp;
String line2 = sDD+"/"+sMM+"/"+sYY +"|"+aH+":"+aM+""+alarm;
lcd.setCursor(0,0);//First row
lcd.print(line1);
//lcd.setCursor(11,0);
//lcd.write(223);
//lcd.print("C");
lcd.setCursor(0,1); //Second row
lcd.print(line2);
}
//Setup screen
void timeSetup(){
int up_state = adjust_state;
int down_state = alarm_state;
if(btnCount<=5){
if (btnCount==1){ //Set Hour
lcd.setCursor(4,0);
lcd.print(">");
if (up_state == LOW){ //Up button +
if (H<23){
H++;
}
else {
H=0;
}
delay(350);
}
if (down_state == LOW){ //Down button -
if (H>0){
H--;
}
else {
H=23;
}
delay(350);
}
}
else if (btnCount==2){ //Set Minutes
lcd.setCursor(4,0);
lcd.print(" ");
lcd.setCursor(9,0);
lcd.print(">");
if (up_state == LOW){
if (M<59){
M++;
}
else {
M=0;
}
delay(350);
}
if (down_state == LOW){
if (M>0){
M--;
}
else {
M=59;
}
delay(350);
}
}
else if (btnCount==3){ //Set Day
lcd.setCursor(9,0);
lcd.print(" ");
lcd.setCursor(0,1);
lcd.print(">");
if (up_state == LOW){
if (DD<31){
DD++;
}
else {
DD=1;
}
delay(350);
}
if (down_state == LOW){
if (DD>1){
DD--;
}
else {
DD=31;
}
delay(350);
}
}
else if (btnCount==4){ //Set Month
lcd.setCursor(0,1);
lcd.print(" ");
lcd.setCursor(5,1);
lcd.print(">");
if (up_state == LOW){
if (MM<12){
MM++;
}
else {
MM=1;
}
delay(350);
}
if (down_state == LOW){
if (MM>1){
MM--;
}
else {
MM=12;
}
delay(350);
}
}
else if (btnCount==5){ //Set Year
lcd.setCursor(5,1);
lcd.print(" ");
lcd.setCursor(10,1);
lcd.print(">");
if (up_state == LOW){
if (YY<2999){
YY++;
}
else {
YY=2000;
}
delay(350);
}
if (down_state == LOW){
if (YY>2018){
YY--;
}
else {
YY=2999;
}
delay(350);
}
}
lcd.setCursor(5,0);
lcd.print(sH);
lcd.setCursor(8,0);
lcd.print(":");
lcd.setCursor(10,0);
lcd.print(sM);
lcd.setCursor(1,1);
lcd.print(sDD);
lcd.setCursor(4,1);
lcd.print("/");
lcd.setCursor(6,1);
lcd.print(sMM);
lcd.setCursor(9,1);
lcd.print("/");
lcd.setCursor(11,1);
lcd.print(sYY);
}
else{
setAlarmTime();
}
}
//Set alarm time
void setAlarmTime(){
int up_state = adjust_state;
int down_state = alarm_state;
String line2;
lcd.setCursor(0,0);
lcd.print("SET ALARM TIME");
if (btnCount==6){ //Set alarm Hour
if (up_state == LOW){
if (AH<23){
AH++;
}
else {
AH=0;
}
delay(350);
}
if (down_state == LOW){
if (AH>0){
AH--;
}
else {
AH=23;
}
delay(350);
}
line2 = " >"+aH+" : "+aM+" ";
}
else if (btnCount==7){ //Set alarm Minutes
if (up_state == LOW){
if (AM<59){
AM++;
}
else {
AM=0;
}
delay(350);
}
if (down_state == LOW){
if (AM>0){
AM--;
}
else {
AM=59;
}
delay(350);
}
line2 = " "+aH+" :>"+aM+" ";
}
lcd.setCursor(0,1);
lcd.print(line2);
}
void callAlarm(){
if (aM==sM && aH==sH && S>=0 && S<=2){
turnItOn = true;
}
if(alarm_state==LOW || shakeTimes>=6 || (M==(AM+5))){
turnItOn = false;
alarmON=true;
delay(500);
}
//if(analogRead(shakeSensor)>200){
// shakeTimes++;
// Serial.print(shakeTimes);
// delay(50);
// }
if (turnItOn){digitalWrite(buzzer, HIGH);
delay (500);
digitalWrite(buzzer, LOW);
}else{digitalWrite(buzzer, LOW);}
delay(100);
/*unsigned long currentMillis = millis();
if(currentMillis - previousMillis > interval) {
previousMillis = currentMillis;
tone(buzzer,melody[i],100);
i++;
if(i>3){i=0; };
}
}
else{
noTone(buzzer);
shakeTimes=0;
}*/
}