Help needed with formatter Elsys up- & downlink

christiaanvr · June 23, 2021, 11:33am

Hi there I am trying to setup the javascript formatter for Elsys EMS sensor… but need some help / example for the Uplink and Downlink message…

Does anyone has already setup correclty for Elsys?

https://www.elsys.se/en/elsys-payload/

Safrone · June 24, 2021, 9:50pm

Try this

gist.github.com

https://gist.github.com/Safrone/d3894caf03985cf9d3395c52405525f7

gistfile1.txt

// Decode decodes an array of bytes into an object.
//  - fPort contains the LoRaWAN fPort number
//  - bytes is an array of bytes, e.g. [225, 230, 255, 0]
// The function must return an object, e.g. {"temperature": 22.5}
/*
@reference https://elsys.se/public/documents/Sensor_payload.pdf

Sensors Name                            Designation
------------------------------------------------------------
Sound Sensor                            ERS Sound

This file has been truncated. show original

christiaanvr · June 28, 2021, 7:35am

Thanks, but it is too long for TTN… it needs to be adjusted …
Can you help?

jjanderson · June 28, 2021, 3:19pm

Have you tried the TTN forum?

chopmann · June 28, 2021, 7:01pm

you are hitting the UI limit of ttn - try uploading over the “API” with something like postman/insomnia.
And by the way, this is the chirpstack forum. Dont want to be rude, but next time ask your question regarding TTN there or on Slack. I’m always glad to help on general LoRa Questions and/or Chirpstack here.