Arduino Tutorial 35- Real Time Clock using DS1302 RTC Module

In this episode, we explain the DS1302 RTC Module and use the LCD Display to show the Real-Time!

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[adrianpineda]

thankyou very much sir you save us from our prelim examination

[incrediblestoriesfromdharm]

I appreciate your help bro you explained so perfectly I wish I can subscribe as many times as I feel 🙏👍👍👍👍

[chebyy]

muchas gracias, esta super bien explicado, lo entendi hasta yo que casi no entiendo el idioma, que gran contenido.

[kkrokingkiller]

WOW THIS WAS THE ONLY VIDEO WHICH EXPLAINED EVERYTHING **PERFECTLY** SO UNDERATED

[saeidmohammadzadeh]

Thank you so much for your video. The analog pins that were used for the LCD, are it not possible to use them again for another module? Because I need more analog pins for my moisture modules.

[hoku_ar]

In the video you said the DS1302 would take the time and date from the computer but my clock sometimes says "Enter year" and sometimes "Date: 165/165/21" "Time 37:65:85" + in the .zip that you put there's a picture called "keypad-circuit.jpg" and the code has the keypad library

[PCKFLS-wyes]

The code doesn't match with the video.

I asked chatGPT to write a code for setting up the reat time clock with the same pins as the pins this video used. Just change some codes like Serial.print to lcd.print.

#include <Arduino.h>
#include <Ds1302.h>

// Define the pin numbers
#define PIN_ENA 8
#define PIN_CLK 6
#define PIN_DAT 7

// DS1302 RTC instance
Ds1302 rtc(PIN_ENA, PIN_CLK, PIN_DAT);

void setup()
{
Serial.begin(9600);

// Initialize the RTC
rtc.init();

// Test if clock is halted and set a date-time to start it
if (rtc.isHalted())
{
Serial.println("RTC is halted. Setting time...");

Ds1302::DateTime dt = {
.year = 24, // Set the year to 2024
.month = Ds1302::MONTH_MAY, // Set the month to May
.day = 19, // Set the day to 19
.hour = 21, // Set the hour to 21
.minute = 9, // Set the minute to 9
.second = 41, // Set the second to 41
.dow = Ds1302::DOW_SUN // Set the day of the week to Sunday
};

rtc.setDateTime(&dt);
}
}

void loop()
{
// Get the current time
Ds1302::DateTime now;
rtc.getDateTime(&now);

static uint8_t last_second = 0;
if (last_second != now.second)
{
last_second = now.second;

// Print the date and time in the format "YYYY/MM/DD HH:MM:SS"
Serial.print("20");
Serial.print(now.year); // 00-99
Serial.print('/');
if (now.month < 10) Serial.print('0');
Serial.print(now.month); // 01-12
Serial.print('/');
if (now.day < 10) Serial.print('0');
Serial.print(now.day); // 01-31
Serial.print(' ');
if (now.hour < 10) Serial.print('0');
Serial.print(now.hour); // 00-23
Serial.print(':');
if (now.minute < 10) Serial.print('0');
Serial.print(now.minute); // 00-59
Serial.print(':');
if (now.second < 10) Serial.print('0');
Serial.println(now.second); // 00-59
}

delay(100);
}

HOW MUCH IS A DS1302 RTC COST IN SRI LANKA

[gabrieldejesusriveracarden]

you can do it with a 7 segment display PLEASE

[juancarlosodulio]

why your codes are the same in your project files?

[glitch]

why doesnt it show the keypad library? am i supposed to delete that one?

[CircuitCreator]

PIN 1 》GROUND
PIN 2 》POSITIVE
PIN 3 》10K POT
PIN 4 》A12
PIN 5 》GROUND
PIN 6 》A11

PIN 11 》A5
PIN 12 》A4
PIN 13 》A3
PIN 14 》A2
PIN 15 》220Ω
PIN 16 》GROUND

[vladsebastian]

the code says it uploaded but nothing changes on the lcd, any ideas? I am sure the com is right

[adrianpineda]

sir can I ask why my time and date is wrong

[JuanManuelify]

Dear Friend: First of all, thank you very much for sharing your knowledge. Please, would there be a possibility of facilitating the program of said project? Waiting for your news, receive a cordial greeting from the Canary Islands

[haizen]

RtcDateTime currenTime = RtcDateTime(_DATE_, _TIME_);
Rtc.SetDateTime(currentTime);
this is an error for me pls help :(

[kitkirkyen]

Sir, what is the time format, is it in the military time?

[jaimedomingoalopez]

i used two time module...why my 1st module displays only the 0/0/2000 0:0:0 and the other module is 165/165/2165 and 37:165:85