My GPS Clock is up and running

With the help of WDT, My GPS Clock is now running nicely. I don't know its exact accuracy. After comparing my GPS Clock time with SymmTime time, I can only say that my clock is very accurate. I use PIC16F877A to control the clock.


I use PPS (Pulse Per Second) to drive my clock so ,theroticaly , the clock should be very accurate. The PPS accuracy from the Lassen iQ GPS module is about 50ns (when position fixes or SV>2).
Next step, I will add sound of the second 'Tick' for accurately setting my watches. Also, I think that telling time with 7-Segment display should be more accurate than the LCD.