package nmea

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package nmea
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exception Invalid_sentence
type mag_var = float * Coord.ew
type mag_dev = float * Coord.ew
type gga = {
  1. time : float;
  2. coord : Coord.t;
  3. quality : int;
  4. sat_n : int;
  5. hdop : float;
  6. alt : float;
  7. geoid_height : float;
  8. station_id : string;
}
type gll = {
  1. time : float;
  2. coord : Coord.t;
  3. status : bool;
}
type rmc = {
  1. time : float;
  2. coord : Coord.t;
  3. sog : float;
  4. cmg : float;
  5. mag_var : mag_var;
  6. status : bool;
}
type sat = {
  1. prn : int;
  2. elev_dgr : int;
  3. azimuth : int;
  4. snr_db : int;
}
type gsv = {
  1. msg_n : int;
  2. msg_i : int;
  3. sv_n : int;
  4. sats : sat list;
}
type gsa = {
  1. auto : bool;
  2. fix : int;
  3. prns : int list;
  4. pdop : float;
  5. hdop : float;
  6. vdop : float;
}
type hdg = {
  1. hdg : float;
  2. mag_dev : mag_dev;
  3. mag_var : mag_var;
}
type zda = {
  1. time : float;
  2. tz : int;
}
type t =
  1. | GLL of gll
  2. | GGA of gga
  3. | RMC of rmc
  4. | GSV of gsv
  5. | GSA of gsa
  6. | HDT of float
  7. | HDM of float
  8. | HDG of hdg
  9. | ZDA of zda
    (*

    sentence type

    *)
val to_string : t -> string

to_string s returns an human readable string for the given sentence

val time_to_unix : int -> float

time_to_unix t transforms nmea time format to unixtime

val datetime_to_unix : int -> int -> float

datetime_to_unix d t transforms nmea datetime format to unixtime

val datetime_to_unix2 : int -> int -> int -> int -> float

datetime_to_unix2 day month year t transforms nmea datetime format to unixtime

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