Hi,
I’ve got a specific case here and I am struggling to get all the pieces working.
I need to be able to send an ASCII string to a slave display to display a certain value.
My line of thinking is that I can send the string as a MQTT payload to the RUT956, store this in a custom register and have this sent to the serial connected (RS232 or 485) slave device.
I have tried to follow the instructions given to setup and test a custome register in the Teltonika Wiki, but I have not been able to test these results.
I would like to be able to prove this before purchasing an expensive display that may not work if I cannot get it to query a custom register that stores a formatted ascii string. The MQTT Gateway seems like an option, but again I would like to be able to prove that is can pass the subscribed message to a serially connected device.
Could anyone provide any guidance or ideas to solve this use case?
Thanks.
Rick