GPS clocks, help synchronize master clock with slave clock

Thread Starter

designer20

Joined Aug 27, 2020
6
Hi all,

I am interested in designing GPS master and slave clocks . Please let me know how i can go about this and which is the best suited GPS module.
 

andrewmm

Joined Feb 25, 2011
572
for what you want, all GPS modules are going to be the same.
All have a serial output , that reports the NMEA strings, of time,
above that, most have a 1 second pulse output that you can use,

have look here for some ideas

https://create.arduino.cc/projecthub/projects/tags/gps

I've used this a few tiems to decode NMEA , works great

http://arduiniana.org/libraries/tinygpsplus/#:~:text=TinyGPS++ is a new,course from consumer GPS devices.



And a particular relevant project

https://create.arduino.cc/projecthub/ingo-lohs/a-cheap-and-accurate-clock-based-on-gps-adc0d9?ref=tag&ref_id=gps&offset=33
 

Thread Starter

designer20

Joined Aug 27, 2020
6
hi,

Can anybody pls guide how we can synchronize master clock with slave clock. I am building a GPS based master clock and want to synchronize it with slave clocks.


thank you.
 

Thread Starter

designer20

Joined Aug 27, 2020
6
Hi all,

I am interested in designing GPS master and slave clocks . Please let me know how i can go about this and which is the best suited GPS module.

Sir, thank for the reply. Could you pls guide how we can synchronize GPS based master clock with slave clocks.
 

hexreader

Joined Apr 16, 2011
450
Send time from master to as many slaves as you want using ASCII serial from master, through RS422 (or maybe RS485) converter chips.

Be sure to provide common ground connection as well as the RS422 bus pair
 

Thread Starter

designer20

Joined Aug 27, 2020
6
Hi all,

Can anybody Please suggest an RF transmitter and receiver module of frequency about 865 MHz for connecting GPS master
clock with slave clocks. It should be able to connect about 102 lave clocks.


Thank you.
 
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