Send GPS position from Seeeduino LoRaWAN GPS node

[arjanvanb (Arjan)]

@brady_aiello

This can (and should) be improved by

• …
• Using SF12 for greater range

Beware that you should not hardcode SF11 or SF12 into a node:

@arjanvanb

As an aside: network providers (such as TTN) are required to actively block devices that always send on SF11 or SF12, to keep their LoRa Alliance NetID: Devices with fixed hardcoded data rates of SF12 or SF11 must not be allowed to join the network.

@brady_aiello

I think I’m supposed to be using the saved Device Address, Network Session Key, and App Session Key after a join, and re-joins just use those.

Yes: How often should a node do an OTAA Join, and is OTAA better than ABP?