ablab

Hello Readers, welcome to my Blog - A Blog For Bloggers By A Blogger. I'm Arun, an entrepreneur Blogger from India.

Time, Date and Day Display in Alphanumeric LCD using DS1307 RTC in 24 Hour Format with ATmega32

2686
Mark as Favourite

The DS1307 Serial Real-Time Clock is a low-power; full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially via a 2-wire, bi-directional bus(TWI Communication Protocol). The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.

In this project, we will learn How to display time, date and day in a alphanumeric LCD using DS1307 Real Time Clock(RTC) with AVR ATmega16 microcontroller in 24 hour format. Here, we will read time(Hour, Minute and Second), date(Date, Month and Year) and day(SUN, MON, TUE….) from the DS1307 RTC and we will display all these values in a 16X2 alphanumeric LCD. The data communication between DS1307 RTC and AVR ATmega16 microcontroller takes place using TWI(Two Wire Interface) communication protocol. But before reading the DS1307 RTC, the DS1307 RTC needs to be initialized with second, minute, hour, date, month, year and day values. The DS1307 RTC is initialized only once. We will initialize the DS1307 with the following values:- time- 21:0:0, Date- 1/1/14 and day as Wednesday. You can change the initialization values according to your need by changing the initialization values in the DS1307 write section of the code. After initialization of DS1307 RTC, the AVR ATmega16 microcontroller will read second, minute, hour, date, month, year and day values from the DS1307 continuously through two wire interface communication and it will display those values in the 16X2 alphanumeric LCD.

Softwares Required

Hardwares Required

Name Quantity
AVR Trainer Board-100 with ATmega32 1pc
AVR USB Programmer 1pc
12V, 1A DC SMPS Adaptor 1pc
EEPROM & RTC Board with AT24C02 1pc
RG1602A 16X2 Alphanumeric LCD Green 1pc
1 to 1 Connector-Female to Female 3pc
10 to 10 FRC Female to Female Connector 3pc

Circuit Diagram

Video

Connection Guide

The step-by-step connection guide for Time, Date and Day Display in Alphanumeric LCD using DS1307 RTC in 24 Hour Format with ATmega32 is as follows

  • Steps - 1 ( 0f 10 )

    Insert the DC Pin of 12V, 1A DC Adapter to the DC Socket of AVR Trainer Board-100.

  • Steps - 2 ( 0f 10 )

    Connect PortB header with LCD data header in AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

  • Steps - 3 ( 0f 10 )

    Connect RS, RW & EN pins of LCD control header with PD0, PD1 & PD2 pins of PortD header respectively in AVR Trainer Board-100 with 1 to 1 Connectors.

  • Steps - 4 ( 0f 10 )

    Connect the 16X2 Alphanumeric LCD to the LCD header of AVR Trainer Board-100.

  • Steps - 5 ( 0f 10 )

    Connect the EEPROM & RTC header of EEPROM & RTC with PortC header of AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

  • Steps - 6 ( 0f 10 )

    Connect the ISP header of AVR Trainer Board-100 with AVR USB Programmer header of AVR USB Programmer with a 10 to 10 FRC Female Connector.

  • Steps - 7 ( 0f 10 )

    Connect the AVR USB Programmer to the PC/Laptop's USB Port directly or with the help of USB AM-AF Cable.

  • Steps - 8 ( 0f 10 )

    Switch on the power with the help of Power Switch of AVR Trainer Board-100.

  • Steps - 9 ( 0f 10 )

    Download Time, Date and Day Display in Alphanumeric LCD using DS1307 RTC in 24 Hour Format with ATmega16 Hex file to AVR Trainer Board-100 with the help of SinaProg Hex downloader and AVR USB Programmer.

  • Steps - 10 ( 0f 10 )

    Wait for some time(30 seconds) and delete or convert the code between DS1307 write section starts here and DS1307 write section ends here into comments in the C Program of the project and compile the code. After compilation, download the code

  • Insert the DC Pin of 12V, 1A DC Adapter to the DC Socket of AVR Trainer Board-100.

    Steps - 1 ( 0f 10 )

  • Connect PortB header with LCD data header in AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

    Steps - 2 ( 0f 10 )

  • Connect RS, RW & EN pins of LCD control header with PD0, PD1 & PD2 pins of PortD header respectively in AVR Trainer Board-100 with 1 to 1 Connectors.

    Steps - 3 ( 0f 10 )

  • Connect the 16X2 Alphanumeric LCD to the LCD header of AVR Trainer Board-100.

    Steps - 4 ( 0f 10 )

  • Connect the EEPROM & RTC header of EEPROM & RTC with PortC header of AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

    Steps - 5 ( 0f 10 )

  • Connect the ISP header of AVR Trainer Board-100 with AVR USB Programmer header of AVR USB Programmer with a 10 to 10 FRC Female Connector.

    Steps - 6 ( 0f 10 )

  • Connect the AVR USB Programmer to the PC/Laptop's USB Port directly or with the help of USB AM-AF Cable.

    Steps - 7 ( 0f 10 )

  • Switch on the power with the help of Power Switch of AVR Trainer Board-100.

    Steps - 8 ( 0f 10 )

  • Download Time, Date and Day Display in Alphanumeric LCD using DS1307 RTC in 24 Hour Format with ATmega16 Hex file to AVR Trainer Board-100 with the help of SinaProg Hex downloader and AVR USB Programmer.

    Steps - 9 ( 0f 10 )

  • Wait for some time(30 seconds) and delete or convert the code between DS1307 write section starts here and DS1307 write section ends here into comments in the C Program of the project and compile the code. After compilation, download the code

    Steps - 10 ( 0f 10 )

Post a Comment