A gps daemon with a gRPC API
Used for my own car system project see this blogpost
Usage of ./cmd/gpsd/gpsd:
-adjustTime
adjust time from GPS
-debug
enable debug
-device string
Device path (default "/dev/ttyACM0")
-fakeCount int
how many fake NMEA lines per sequences (default 3)
-fakePath string
fake NMEA data file for debug
-grpcPort int
grpc port to listen (default 9402)
-logNMEA
log all NMEA output in current directory
-osmrAddr string
OSRM API address (default "https://localhost:5000")
-speed int
Speed in bauds (default 38400)
-timeout duration
Timeout in second (default 4s)
A gRPC API is exposed for a client to retrieve the positions updates:
rpc LivePosition(google.protobuf.Empty) returns (stream Position);
Look in cmd/gpsc
for an example client.
You need some privileges to use adjustTime
, on Linux use root user or sudo setcap cap_sys_time+ep /path/for/gpsd
.