I am a student and I am currently carrying out a year-end project on a Lora sensor.
I use for this a STM32 Lora development pack (P-NUCLEO-LRWAN1) which is used as a Lora sensor. I succeeded, without difficulty in transmitting data to a gateway.
On Cayenne, I added a new device namely the development pack and I transmitted the data from the LNS to Cayenne. Everything works for the best with the CayenneLPP format.
However, I would like my data to have a different format than the CayenneLPP because for me this format is too energy-intensive during a transmission. I did not find any solution to change the format of the data field.
I would also like to be able to light an LED on the device from Cayenne. But I have absolutely no idea how to do it. I think I read that using an MQTT server could help me.
Do you have a solution for my two problems?
Thank you so much.