I am trying to send a message downlink to a lora module from an abp station. I am using ndoe-red. I just can send a string but not an hex array. Is it possible? I also wanted to receive the hex array from mqtt and inject to a lora device (a precise one, not broadcast).
I have seen the lora module (blue one) but I don’t know how to configure all the parameters in advance with my hex array and device in code, not hardcoded.
Any idea here?