Serial client + gps + mqtt

[J_Dev]

I have a TRB245 connected to a device via serial and am sending the Modbus registers of the device with mqtt using the data to server functionality.

Is there a way to send the GPS data of the TRB245 via the current set up and send it with mqtt?

Of note is that I am unable to change the current set up as this is the only one that will work for my solution.

I can add to the setup I.e. adding TCP server to access the TRB245 Modbus registers.

[anon65719490]

Hello,

If you’d like to send GPS data alongside your existing Modbus data via MQTT, this can be achieved by enabling the Modbus TCP Server functionality on your TRB245 and then configuring a Modbus TCP Client to request GPS data from the device’s Modbus registers. The relevant register details are as follows:

• GPS Latitude:
  • Register Number: 144
  • Register Count: 2
  • Data Type: 32-bit Float
• GPS Longitude:
  • Register Number: 146
  • Register Count: 2
  • Data Type: 32-bit Float

More useful information can be found here:

• TRB245 Modbus - Teltonika Networks Wiki

Once configured, this GPS data can be sent together with your Modbus RTU data via your existing MQTT setup.

I hope this helps clarify it. If you need any assistance with the configuration, feel free to reach out.

Best regards,

[J_Dev]

hi Martynas,

Thanks for the response, This pointed me in the right direction,

I managed to to set up correctly for our use case to be able to send the GPS data via MQTT.

All the best,

Joshua

[anon65719490]

Hello, Joshua,

Thank you for the update, and I’m glad I could help or give the right insights.

Feel free to reach out to us if you need any assistance in the future.

Best regards,
Martynas