Hey Maarten,
I got everything connected and uploaded the sketch to the ESP.
However now I'm getting this error on the serial console:
wdt reset
load 0x4010f000, len 1264, room 16
tail 0
chksum 0x42
csum 0x42
~ld
Starting
hal_init: ESP architecture
FAILURE
/home/rvweert/data/Arduino/libraries/lmic-v1.5/src/lmic/radio.cpp:657
Any idea what might cause this?
Thanks! - Rene