OTAA best practice: how to not join every time?

End Devices (Nodes)
2

that happends when under developmentā€¦ not IRL :wink:

a possible solution

1e time OTAA join + set counter to 1
store keys

2e time ABP join (read keys from memory) + counter +1
3e time same
.
.
xx time start all over OTAA join (+ store new keys) + counter start at 0