real time clock using pic16f877 and DS1307

[ud23]

please i need programe and schematics for 16f877 with DS1307 0N SEVEN SEGMENT DISPLAY

https://www.best-microcontroller-projects.com/real-time-clock-ic.html

 

[jaycec]

Hi I am very very new to this can this be implemented on a 16f690

Please let me know

I think pic 16f690 has I2C peripheral, so can connect ds 1307 to that pic

 

[ibitechs2005]

please i need the code that can work with 16f877 the one in this link broken link removed ic.html is for 16f88

 

[ravimarcus]

https://www.best-microcontroller-projects.com/real-time-clock-ic.html

The code is already posted ages back in this thread. Please search for it and use it.

Cheers

Ravi

 

[ckshivaram]

all codes will work if your hardware connections are compatible with the source code.

 

[ibitechs2005]

please how do i make hardware connection compatible?

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please how do i make hardware connection compatible?

 

[ckshivaram]

first check if the hardware connections are as per the software port and pin assignment. if it is not possible the post the circuit diagram and the code you are using...........

 

[drbizzarow]

DS1307 time deviate more then 5 min per month.

 

[ckshivaram]

Seems to be your crystal oscillator is deviating too much. Under what environment do you use the device, withiin room or in field? what if the capacitor value used for your RTC crystal 32.768KHz.
can you measure the oscillator frequency on a scope and see how much if the frequency.

 

[drbizzarow]

sure i will ...... i have connected 12pf precise capacitors with Xtl and ground.