Wednesday, July 18, 2018

TruePosition GPSDO 10Mhz Clock Standard Reference Distribution Board

As i am working on my own GPSDO project i had multiple of these Trueposition GPSDO modules, for using them correctly i put them into enclosure. here is how whole project goes.






Distribution Board

Detailed description of GPSDO board is available here 


10Mhz Distribution board has PIC18F25K50 micrcontroller which is running firmware perform usb to serial conversion and at the same time sniffer incoming packet  from GPSDO module for the status information , Display pared data on to OLED and LEDs, Firmware also handle User interface key press and menu display.

It is possible to start a survey right on the front panel board using key press.






Front Panel Display Board







Keypress 
Normal state 
Short : switch between home screen and coordinate display
Long press : Get into survey menu.
Press and hold :  not used
In survey menu 
Short : incremt survey duration.
Long press : Get out of survey menu.
Press and Hold : start survey for selected duration

All PCB Source , schematic source and Firmware are available in my gihub.


Enclosure
Hammond 1455N1201

Assembly 






















Project Source on Github 

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