GPS STATUM 1 NTP TIME SERVER

Note V2 now available using twin 1.3" OLED displays https://www.thingiverse.com/thing:6749515
This project uses an ESP8266 NodeMCU module and GPS receiver to produce a local Stratum 1 WIFI time signal and is housed in a wall mounted 3D printed enclosure.

Full build details including large schematics and Vero Board layouts are on my site here http://www.brettoliver.org.uk/GPS_Time_Server/GPS_Time_Server.htm .

This circuit is based on a Stratum 1 Time Server designed by Cristiano Monteiro.

See his LinkedIn page here https://www.linkedin.com/pulse/iot-maker-tale-stratum-1-time-server-built-from-scratch-monteiro/

with all source files here https://github.com/Montecri/GPSTimeServer

Cristiano Monteiro based his code on the work of http://w8bh.net/ look under Arduino Projects/Clocks.

I have not changed much at all just removed the battery and associated charging circuits.

I have left the WIFI On/Off button even though it is not really needed on my mains powered device.