LMIC-1.51 fitting in Arduino Atmega 328

I was cheating a bit there: Those figures are with class B support, OTAA / joining and some MAC commands disabled. While keeping them enabled, I get: Sketch uses 28,516 bytes (88%) of program storage space. Global variables use 1,049 bytes (51%) of dynamic memory. In both cases, I modified the ttn example sketch to remove some verbose debug printing in onEvent(), since that also takes up significant flash space.