Data Sheet

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LGT-92 LoRa GPS Tracker User Manual 24 / 29
6.3 How to change the LoRa Frequency Bands/Region?
User can follow the introduction for how to upgrade image. When download the images, choose
the required image file for download.
6.4 Can I use Private LoRa protocol?
The stock firmware is based on LoRaWAN protocol. User can use a private LoRa protocol in
LGT-92, this section describe an example for base LoRa transfer. It is a reference/demo and we
didn’t provide further software develop support on this topic.
In this demo, we will show the communication between LoRa Shield and LGT-92, both of them
use the basic LoRa library. LGT-92 will send a message to LoRa Shield and LoRa Shield will print it
to the console.
LoRa Shield + UNO:
Use the <LoRa Library> and upload the LoRa_Receive Sketch to Arduino. Open the serial
monitor to Arduino, it acts as a LoRa Receiver and listen on the frequency: 868.3Mhz
LGT-92:
Use the <LoRa RAW code> . The project file is in: MDK-ARM\STM32L072CZ-Nucleo\
Lora.uvprojx
Compile it and Upload it to LGT-92, the LGT-92 will transfer on the frequency 868.3Mhz.
In Arduino Console, it will see: