Difference between revisions of "Setting Time and Date for the DS3231 RTC"

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   Insert '''DS3231 module''' into the '''Power Logger PCB''' at J5.  
 
   Insert '''DS3231 module''' into the '''Power Logger PCB''' at J5.  
 
   
 
   
To Set the date and time use the follow program and paste in the Arduino IDE.<br>
+
To Set the date and time use the follow program and paste in the '''Arduino IDE'''.<br>
 
Ensure sure you have added these two libraries to the Arduino environment using the library manager.
 
Ensure sure you have added these two libraries to the Arduino environment using the library manager.
 
  '''Wire.h'''   
 
  '''Wire.h'''   
 
  '''ds3231.h'''  
 
  '''ds3231.h'''  
 
+
----
 
   // '''DS3231-Set-Time-Date.ino'''
 
   // '''DS3231-Set-Time-Date.ino'''
 
   //This code can be found here:https://github.com/rodan/ds3231
 
   //This code can be found here:https://github.com/rodan/ds3231
Line 55: Line 55:
 
   Serial.print(number);
 
   Serial.print(number);
 
   }  
 
   }  
 
+
----
 
'''Set up Programmer'''
 
'''Set up Programmer'''
 
   Connect the '''USBTinyISP''' to the '''AVR-ISP-6 pin header J7''' on the '''Power Fail Logger PCB'''.
 
   Connect the '''USBTinyISP''' to the '''AVR-ISP-6 pin header J7''' on the '''Power Fail Logger PCB'''.
   In the Arduino IDE click on '''Tools''' Tab - Select '''Programmer''' then select '''USBTinyISP'''.<br>
+
   In the '''Arduino IDE''' click on '''Tools''' Tab - Select '''Programmer''' then select '''USBTinyISP'''.<br>
 
   Connect the '''Prolific USB-to-Serial Comm Port''' to the '''RS232 Port''' on the Power Fail Board  
 
   Connect the '''Prolific USB-to-Serial Comm Port''' to the '''RS232 Port''' on the Power Fail Board  
   Use '''Device Manager''' to validate which Comm Port is used.
+
   Use '''Windows Device Manager''' to validate which Comm Port is used.
   In the Arduino IDE click on '''Tools''' Tab - Select '''Port''' then select the '''Prolific Port''' (Example Comm6).<br>
+
   In the '''Arduino IDE''' click on '''Tools''' Tab - Select '''Port''' then select the '''Prolific Port''' (Example Comm6).<br>
 
   Select correct target board
 
   Select correct target board
   In the Arduino IDE click on '''Tools''' Tab - Select '''Board''' then select the '''Arduino Uno'''.<br>
+
   In the '''Arduino IDE''' click on '''Tools''' Tab - Select '''Board''' then select the '''Arduino Uno'''.<br>
 
'''Flash the Microcontroller''' with DS3231-Set-Time-Date Program
 
'''Flash the Microcontroller''' with DS3231-Set-Time-Date Program
 
   Paste the above program '''DS3231-Set-Time-Date.ino''' into the '''Arduino IDE'''.
 
   Paste the above program '''DS3231-Set-Time-Date.ino''' into the '''Arduino IDE'''.

Revision as of 00:38, 29 July 2021

DS3231.PNG

Setting up the DS3231 RTC

 DS3231 RTC Datasheet: https://datasheets.maximintegrated.com/en/ds/DS3231.pdf
 Insert a coin cell battery into DS3231. 
 Either a CR2032 or LI2032 coin cell battery will work.
 Insert DS3231 module into the Power Logger PCB at J5. 

To Set the date and time use the follow program and paste in the Arduino IDE.
Ensure sure you have added these two libraries to the Arduino environment using the library manager.

Wire.h  
ds3231.h 

 // DS3231-Set-Time-Date.ino
 //This code can be found here:https://github.com/rodan/ds3231
 #include <Wire.h>    //Make sure you have added this library to the Arduino environment
 #include <ds3231.h>  //Make sure you have added this library to the Arduino environment
 struct ts t; 
 void setup() {
 Serial.begin(9600);
 Wire.begin();
 DS3231_init(DS3231_CONTROL_INTCN);
 /*----------------------------------------------------------------------------
 In order to synchronize your clock module, insert timetable values below !
 ----------------------------------------------------------------------------*/
 t.hour=20;      //Set the hour in military time to your current time. 
 t.min=40;       //Set the minutes. 
 t.sec=0;        //No need to change   
 t.mday=11;      //Set the Day
 t.mon=4;        //Set the Month
 t.year=2021;    //Set the Year
 DS3231_set(t);  //Comment this line out after setting RTC with time & date to validate
 }

 void loop() {
 DS3231_get(&t);
 Serial.print("Date : ");
 Serial.print(t.mon);
 Serial.print("/");
 Serial.print(t.mday);
 Serial.print("/");
 Serial.print(t.year);
 Serial.print("\t Hour : ");
 Serial.print(t.hour);
 Serial.print(":");
 Serial.println(t.min);
 Serial.print(":");
 Serial.println(t.sec);
 delay(60000);
 }
 void print2digits(int number){
 if (number >= 0 && number < 10) {
   Serial.write ('0');
 }
 Serial.print(number);
 } 

Set up Programmer

 Connect the USBTinyISP to the AVR-ISP-6 pin header J7 on the Power Fail Logger PCB.
 In the Arduino IDE click on Tools Tab - Select Programmer then select USBTinyISP.
Connect the Prolific USB-to-Serial Comm Port to the RS232 Port on the Power Fail Board Use Windows Device Manager to validate which Comm Port is used. In the Arduino IDE click on Tools Tab - Select Port then select the Prolific Port (Example Comm6).
Select correct target board In the Arduino IDE click on Tools Tab - Select Board then select the Arduino Uno.

Flash the Microcontroller with DS3231-Set-Time-Date Program

 Paste the above program DS3231-Set-Time-Date.ino into the Arduino IDE.
 After changing the time stamp in the program to match your current time do the following:
 In the Arduino IDE click on Sketch Tab - Select Upload Using Programmer
 

Validate the clock is set

 After program has uploaded go back and comment out the DS3231_set(t); statement. 
 Validate by reprograming the board with that line commented out.
 Use the same programming steps as stated above. 
In the Arduino IDE click on Tools Tab - Select Serial Monitor
Once the program has finished loading hit the Reset button on the Power Fail Logger Board. You should see the correct time and date display in the Serial Monitor. It will update and display the time once a minute

Next Step Flash the Microcontroller with Power-Fail-Logger Program

Power Fail Logger by Microrusty