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ST — GNSS Status

Queries GNSS diagnostic status information.

Format​

  • Legacy query: >QST;+<
  • Filter diagnostics query: >QST1<
  • Runtime diagnostics query: >QST2<
  • Response: >RST...<

Response Formats​

>QST;+<  -> >RST{ACQ_STATUS_HEX}000000001,0.00,{BAUD},{GPS_STATUS},{SATS},{MOTION},{HDOP},{SPEED},0,{CHK_ERRORS},{COMM_FAILS}<
>QST1<   -> >RST1;{FILTER_STATE};{HDOP_LIMIT},{HDOP_CURRENT};{USE_MOTION},{MOTION};{SPEED_LIMIT},{SPEED_CURRENT}<
>QST2<   -> >RST2,{NO_FIX_TIME},{GPS_STATUS},{SATS},{NAV_STATUS}<

Examples​

Legacy status (QST;+):

>QST;+<
>RST01000000001,0.00,9600,3,8,true,90,12,0,0,0<

Filter diagnostics (QST1):

>QST1<
>RST1;1;120,95;true,true;50,12<

Runtime diagnostics (QST2):

>QST2<
>RST2,35,3,8,A<

Notes​

  • QST;+ is the legacy extended GNSS status response.
  • QST1 and QST2 provide internal GNSS/filter diagnostics used for troubleshooting.
  • QST< (without ;+, 1, or 2) is not supported by the current parser.
  • F01 — SIGNAL_GNSS_FIX
  • F22 — SIGNAL_GNSS_LONG_TIME_NO_FIX
  • Extended tags: DOP, SV, AL