Not decode payload

Devices
1

Dear all,
I have problem with some device that not decode the payload so I can’t see data, see the attached:

image
image972×860 79.9 KB

I have this problem with Moko LW004-PM and Milesight EM300-TH

How can I resolve it?

Thank you and best regards,
D

2

Hi,

take a look of these link;

Regards.

3

I try to paste code on codec device profile but not decode payload. It’s right to paste code on codec? I need to remove device before?

thanks
D

4

Sorry, I paste code of Milesight EM300-TH and now decode data correctly but for MOKO LW004 I try all code but I can’t see decoded data.

5

Hi,

No you don’t have to remove the device… you just have to complete your mods under codec in the device profile.

If you use ChirpStack V4…

Here’s what I did.

  1. copy the codec V3: MOKOSMART-LoRaWAN-Product-Decoder/LW004-PB/V3 Version/LW004-PB V3 on Chirpstack.js at main · LoRaWAN-Product-Decoder/MOKOSMART-LoRaWAN-Product-Decoder · GitHub

  2. modifications to the codec must be done for V4 just before line 63 add;

function decodeUplink(input) {
const decodedInput = {
data: Decode(input.fPort, input.bytes),
warnings: ,
errors:
};
return {data: decodedInput.data};
}

image

and then you should have something like this under Events

image

This changes is only for V4 … I haven’t tested V3

Regards