Downlink Command: Sent - but no reply

ChirpStack Application Server
1

I am trying to learn how to use the Downlink Command feature of Dragino LHT52 via Chirpstack.

Device: Dragino LHT52

Gateway: Dragino LPS2v8

The LHT52 has JOINED the LPS2v, and all workin to the point I have MQTT messages going to my MQTT server.

As a test - I am trying to send the Show Firmware Version command

The documentation says send downlink payload=0x2601

So I add this to my Device Queue:
image

After a while - I see these:

image
image857×114 3.53 KB

image
image829×107 4.83 KB

There seems to be no REPLY to the DOWN meassge

I notice that the payload on the message DOWN is this:

image
image260×273 4.81 KB

The payload is NOT 0x2601

WHat am I doing wrong?

2

In downlink you wrote 0x2601 or 2601? You have to write: 2601. Two bytes.

Also: frm_payload is base64, 2601 are HEX numbers. You need to convert frm_payload to HEX. I don’t remember if it’s unencrypted though.