Deeplet/MicroNET/... DVRs can set time using GPS.
Manual says: "Connect the RS-232 connector to GPS modem via the appropriate cable. The system supports the GPS modems with NMEA0183 protocol. Some GPS Devices Tested: HOLUX GR-213 / G-Mouse GPS Receiver / Garmin GPS 18 OEM / GlobalSat BR-355 Cable GPS".
Can i use Adafruit Ultimate GPS Breakout v3? It supports NMEA0183 and uses TTL serial output to send data, so i think i need RS-232-to-TTL converter??
Anybody know how to do this?