Arduino Tutorial 31# How to make 12 hour format clock (DS1302) with Arduino

Arduino Tutorial 31# How to make 12 hour format clock (DS1302) with Arduino
Scroll down for code.....
Please like & Subscribe for more videos
Real Time Clock (DS1302) library
www.rinkydinkelectronics.com/l...
LiquidCrystal_I2C library Github link
github.com/fdebrabander/Ardui...
I2C scanner to find out I2C address
playground.arduino.cc/Main/I2c...
If you want to support my video please buy any product through my amazon affiliate link. I will receive a commission, at no extra cost to you.
LIST OF COMPONENT (affiliate links)
amzn.to/2fvSRJq (Arduino)
amzn.to/2gRFSiv (RTC DS1302)
amzn.to/2yBk7eT (LCD display)
amzn.to/2zg8aeX (I2C)
amzn.to/2wxPmWz (Breadboard)
amzn.to/2vJ3lvo (Jumper wire)
#include (Wire.h)
#include (LiquidCrystal_I2C.h) //instead of parenthesis () put angle bracket as TH-cam description does not allow angle bracket
// Set the LCD address to 0x3F for a 16 chars and 2 line display // note: it may be different for your LCD please find it.
LiquidCrystal_I2C lcd(0x3F, 16, 2);
#include (DS1302.h)
// Init the DS1302
DS1302 rtc(2, 3, 4);
// Init a Time-data structure
Time t;
void setup()
{
// Set the clock to run-mode, and disable the write protection
rtc.halt(false);
rtc.writeProtect(false);
// The following lines can be commented out to use the values already stored in the DS1302
rtc.setDOW(TUESDAY); // Set Day-of-Week to TUESDAY
rtc.setTime(23, 59, 50); // Set the time to 24hr format it will automatically take time according to AM/PM
rtc.setDate(06, 2, 2018); // Set the date to Febrauray 6th, 2018
// initialize the LCD
lcd.begin();
}
void loop()
{
// Get data from the DS1302
t = rtc.getTime();
lcd.setCursor(0, 0);
if (t.date(=9){
lcd.setCursor(0,0);
lcd.print("0");
lcd.setCursor(1,0);
lcd.print(t.date, DEC);
}
else {
lcd.print(t.date, DEC);}
lcd.setCursor(3, 0);
lcd.print(rtc.getMonthStr());
lcd.setCursor(12,0);
lcd.print(t.year, DEC);
lcd.setCursor(4,1);
{if (t.hour)=12){
lcd.setCursor(13,1);
lcd.print("PM");
lcd.setCursor(4,1);
t.hour = t.hour-12;
if (t.hour== 0) {
t.hour = 12; // Day 12 PM
}
if (t.hour(=9){
lcd.setCursor(4,1);
lcd.print("0");
lcd.setCursor(5,1);
lcd.print(t.hour, DEC);
}
else {
lcd.print(t.hour, DEC);}}
else { if(t.hour==0){
t.hour=12; // Night 12 AM
}
lcd.setCursor(13,1);
lcd.print("AM");
lcd.setCursor(4,1);
if (t.hour(=9){
lcd.setCursor(4,1);
lcd.print("0");
lcd.setCursor(5,1);
lcd.print(t.hour, DEC);
}
else {
lcd.print(t.hour, DEC);}} }
lcd.setCursor(6,1);
lcd.print(":");
lcd.setCursor(7,1);
if (t.min(=9){
lcd.setCursor(7,1);
lcd.print("0");
lcd.setCursor(8,1);
lcd.print(t.min, DEC);
}
else {
lcd.print(t.min, DEC);}
lcd.setCursor(9,1);
lcd.print(":");
lcd.setCursor(10,1);
if (t.sec(=9){
lcd.setCursor(10,1);
lcd.print("0");
lcd.setCursor(11,1);
lcd.print(t.sec, DEC);
}
else {
lcd.print(t.sec, DEC);}
delay (1000);
lcd.clear();
}

[@JJ10880011]

Thank you so much for your information. Your information is really through and I was able to complete to set up 12 format clock using DS1302 and 1602a LCD. As you comment I've changed lcd(0x3F) to (0x27) and worked safisfacorily. The only problem I found was that time counts form 6:30 pm after unpluged power supply though I put a battery to DS1302. However this is very minor problem so I don't care. Thanks again.

[@eddiejones8709]

Thank you for providing an excellent video. I'm not using a1302 but with your information I am going to see if I can take what you have provided and apply that to my 3231.

[@wowo1081]

Good working code. I modified the end of the Loop function a bit, commented out delay (1000); which could be cause seconds to skip and lcd.clear(); to eliminate flickering of the screen.

[@StudentBuilds]

nice vids, keep them up!

[@Scanito]

Quite clear and easy to understand. Thanks Sir!

[@maresdaniel2768]

Hey, can you help me modify the code to work whit the ds1307 RTC , and seting the hour /min/sec whit push buttons please?

[@vijayjadhav4488]

Very nice clock

[@milanjpatel1201]

Do you have code for atmel studio 7 in assembler language

[@edebiyat_arastirmacisi]

Hocam selamlar.

[@jenntek.101]

7 segment display TM1637 would be fun for just time... not the date...

[@ranjeetminhas9051]

i am using the code given by u but my arduino software is giving errors. so tell me the right code or software version

[@qboyqboy]

hi, i try this codes, maybe something wrong or my side, please help: if (t.min(=9){

[@geoffairbourniawbor2873]

How to write the code without using LCD?

[@ianacoustic6685]

hello sir can i request?please create a tutorial about how to set time and date using the buttons please help me im a student thankyouu i using ds3231 rtc

[@pareshpanchal52]

can you add a little beep on completion of each hour. say hourly signal or sound.

[@mahedihassan7611]

Vai how do i do it with ds 3231 rtc

[@RainbowPlayzo]

When i upload the code the lcd still shows nothing

[@harpreetsinghbhinder9]

no matching function for call to 'LiquidCrystal_I2C::begin()'

[@pritambakshi6936]

I can use any RTC Module , (Yes or No) *Particular This Project.

[@manindersingh4834]

Hello can you make 20 time alarm clock with arduino