What your looking for is here, and probably a couple other places in the multiple Dragino or LMIC related posts. Make sure you know what version of the LMIC library you are using before figuring out which set of code you should use.
What your looking for is here, and probably a couple other places in the multiple Dragino or LMIC related posts. Make sure you know what version of the LMIC library you are using before figuring out which set of code you should use.