Project that uses cheap ESP controller to generate fake GNSS NMEA data

Projects generates PPS signal to synchronize multiple LiDARs.

Wiring

D1 - PPS
TX - NMEA

Timestamp

It reports timestamp from POSIX 1600000000.
It turnovers after full UTC day

Tested devices

Livox mid-360 (FW 13.17.01.05)