Downlink to Sensecap 2105 Sensor - Troubleshooting Needed


I’m currently grappling with how to send a downlink message, which I have as a hexadecimal code, to my Sensecap 2105 sensor. For testing purposes, I’ve utilized a hex code from the manual to adjust the interval to 10 minutes.

Here’s what I’m doing: I navigate to the sensor, then to Messaging => Downlink, where I change the FPort to 2 and input my hex code into the payload field. However, when I check the live data, I receive the message “No encoder defined for codec.”

At this juncture, I’m a bit perplexed because the sensor is already listed in the TTI Repo of sensors. Consequently, I would assume that everything is set up correctly for downlink as well.

I’m uncertain about what misstep I might be making. I’m hopeful that someone can provide assistance or perhaps offer an example of how this process should ideally function when everything is functioning as expected.

Thanks in advance for any guidance you can provide!