LGT92 LoRaWAN GPS and Motion Tracker

The Dragino LGT-92 LoRaWAN GPS tracker offers a low power GPS module combined with a 9-axis MEMS sensor (accelerator, gyroscope and compass). Its primary function is to provide motion detection and up-link the current GPS positions. It also has a emergency button that will immediately force an up-link when pressed. The power for both the GPS module and MEMS sensor are controlled by the MCU to achieve the best energy profile, but the power settings are user configurable.


Please note that all LoRaWAN IoT Sensor nodes supplied by Telemetry2U will work with 3rd party network/application servers, like TTN, but if you would like to use your sensors on Telemetry2U’s advanced, plug-and-play IoT Platform, then you will need to purchase a license by selecting from the drop-down box below. Products purchased with a license will be shipped with the latest firmware and configuration optimised for T2U, with no programming or set-up required.

You can view a live demonstration of our IoT Platform here.
SKU: LGT92
Manufacturer: Dragino
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$99.00 +GST
Availability: In stock
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The LoRa wireless technology used in the Dragino LGH92 allows users to send data and reach extremely long ranges at low data-rates. It provides spread spectrum communication and high interference immunity whilst minimising power consumption. It is well suited for asset security and usage tracking.

The Dragino LGH92 has a rechargeable 1000mA Lithium-Ion battery and can be charged with a standard micro USB cable.  The USB cable is also used to configure the device's settings via AT commands. The Dragino LGH92 is pre-programmed to detect movement, with a variable threshold. When static the Dragino LGH92 sends location data every hour (keep-alive-time). While in motion, the Dragino LGH92 will upload its location information at 1-minute intervals (transmit time). The device will switch to static mode if no movement is detected for 5 minutes, saving on battery life. The data records include the battery voltage, motion status, GPS lat/long coordinates and the alarm status, with the pitch/roll being optional.

If the emergency button is held down for more than 5 seconds, the Dragino LGH92 will enter alarm mode and will immediately send an uplink, followed with an uplink every 60 seconds, for 60 records.  During this time, the alarm flag will be active meaning it can be used to trigger an email/SMS or voice alert from the server end.

The Dragino LGT92 also has an LED to indicate its status.  The LED colours are explained below.

Power On: GREEN LED on for 2 seconds
Join Request: BLUE LED fast blink once (200ms)
Join Success: PURPLE LED on for 1 second
Fixing Location: GREEN LED blinks 200ms per second
Fixed and Uplink: BLUE LED blinks twice (200ms/blink)
Fail Fix and Uplink: RED LED blinks twice (200ms/blink)
Enter Alarm Mode: RED LED on for five seconds
Uplink under Alarm: RED LED on for one second
Exit Alarm: BLUE LED on for one second
Downlink Received GREEN LED on for 1 second
Movement Detect: RED LED on for 500ms

 

Attribute name Attribute value
Features
  • LoRaWAN 1.0.3 compliant
  • Regular/real-time GPS tracking
  • Built-in 9 axis MEMS sensor (accelerometer, gyroscope and compass)
  • Motion sensing capability
  • Power Monitoring
  • Charging clip with USB port 
  • 1000mA Li-on Battery power
  • Tri-color LED, Alarm button
  • Bands: AS923/AU915
  • AT Commands to change parameters
Applications
  • Motion & altitude detection
  • Asset tracking and monitoring
  • Asset usage statistics
  • Asset security
  • Logistics and supply chain management
  • Smart factory
Specifications

System:

  • STM32L072CZT6
  • Flash:192KB
  • RAM:20KB
  • EEPROM:6KB

 

GPS,L70R:

  • Acquisition: 16mA
  • Tracking: 13mA
  • Cold Start: <35s
  • 8uA@Backup Mode
  • Warm Start: <30s
  • Accuracy: < 2.5m CEP
  • ReHot Start: <1s

 

MEMS Sensor:

  • MPU9250 9-axis MEMS
  • triple-axis MEMS gyroscope
  • triple-axis MEMS accelerometer
  • triple-axis MEMS magnetometer
  • 3.5mA operating current

 

Power Consumption:

  • Sleeping Mode: 77uA  (for LGT-92-LI),  3uA (for LGT-92-AA)
  • Tracking: max: 38mA
  • LoRa Transmit: 24 ~ 150mA
 
Package contents
  • 1 x LGT92
  • 1 x USB charge cable
  • 1 x Programming cable
  • 1 x Lanyard
Dimensions and weight
  • Device size: 80 x 40 x2 15mm
  • Device weight: 100g
  • Package size: 100 x 90 x 40mm
  • Package weight: 150g
Documents

Document Directory

Hardware Design Files

Source Code Link