Help: Liquid/Solid Level Monitoring

1

I’m curious to understand how the provisioning of this sensor work.

The pdf linked in that web page say (pag.7):

Commands to Level Monitor
_Key parameters are stored on the device in non-volatile memory. The value of these parameters can be changed using a downlink, i.e. data (commands) sent to the device from the network server. _
All data is sent in hexadecimal and should be directed to port 5.
On data being sent to the device, it is acknowledged by the devic…bla bla bla

my doubt is… how can I send a downlink message to this sensor to set all join parameters of the node… if the node itself is not already joined to the network??

Thanks
Alex

2

Just a guess but if they are ABP activated, the are prejoined.

So when you would receive the devices you can create a new application -> register a device -> choose activation method ABP -> and enter your own keys (the ones in the manual).

Then you could send uplink messages to the device changing its settings (and the keys). Now you would need to register a new device with the updated keys and delete the old device (since it isn’t listening to those keys anymore).

I am quite inexperienced when it comes to LoRaWAN though so this situations might not be correct.