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LGT-92 LoRa GPS Tracker User Manual
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Step 2
: Power on LGT-92 LoRaWAN GPS Tracker by using the on board switch.
For LGT-92-LI, user can power it by USB cable no matter if the power switch is on or off.
For LGT-92-AA, the USB port is only used for debug or upload firmware, USB port can’t power the
device.
Step 3:
LGT-92 will auto join to the TTN network. After join success, LGT92 will start to upload
message to IoT server.
For firmware v1.4:
By default, the upload period is 5 minutes. In the start of each period, LGT-92 will try to get GPS
signal and the green LED will blink. Once LGT-92 get the GPS info, it will upload a LoRa message
include battery / GPS info/ X,Y axis info. If LGT-92 can’t get GPS info into 2 minutes, it will still
upload the message but the GPS info will be all 00.
For firmware v1.5:
By default, the firmware v1.5 is set to movement detect mode (AT+MD=1). In this mode, if the
tracker is static, it will uplink location info every
1 hour (KAT:Keep Alive Time)
; if the tracker
move, it will uplink location info at every
5 minutes (TDC time)
, tracker will go to static mode if
there is no movement for 5 minutes. Each uplink packet includes battery, alarm status & location
info, if device fail to get location info, the location field (latitude and longitude) will be set to all
0x00.
