thingsML usage for LoRaWAN

Hi all,

I’ve been trying to use the thingsML to send data from my device to the KPN things portal. So far, I haven’t been successful. I was wondering if someone can help me see the error in my work. My device is SodaqOne, and I am using RN2483 library functions for LoRa communication. I can send raw payloads to the portal and back. There are no problems there.

I forward the portal to an HTTP endpoint, a webhook, and I can see the SenML format JSON packet there. For example:

I send {0xf5, 0x19} from SodaqOne, I see the Confirmed data+mac on the portal as payload = f519, and then on the webhook, I can see the  raw data as below:

[
  {
    "bn": "urn:dev:DEVEUI:0059Axxxxxxxxxxx:",
    "bt": 1605187216
  },
  {
    "n": "payload",
    "vs": "f519"
  },
  {
    "n": "port",
    "v": 1
  }
]

Next, I tried to use the thingML library following this guide. What I try to do is to send a test data such as [{"i_":-24,"v":23.0}]. So I send the raw bytes of corresponding messages, and in the flow, I enable the “Decoded ThingsML for LoRa payload.”

Unfortunately, what I see on the webhook is still raw bytes:

[
  {
    "bn": "urn:dev:DEVEUI:0059Axxxxxxxxxxx:",
    "bt": 1605201983
  },
  {
    "n": "payload",
    "vs": "5b7b22695f223a2d32342c2276223a32332e307d5d"
  },
  {
    "n": "port",
    "v": 1
  }
]

For the sake of making it short, I will share my code if asked.