When trying to get this to work on an Arduino Nano 33 IOT I ran into issues picking the correct wifi driver and also found that the dtostrf method caused compile errors.
In file included from /Users/cbitter/Documents/Arduino/mkr1000-iotc/mkr10x0_iotc/mkr10x0_iotc.ino:49:0:
sketch/./utils.h: In function 'char* dtostrf(double, int, unsigned int, char*)':
utils.h:7:9: error: 'fcvt' was not declared in this scope
s = fcvt(value, precision, &decpt, &sign);
^~~~
sketch/./utils.h:7:9: note: suggested alternative: 'Oct'
s = fcvt(value, precision, &decpt, &sign);
^~~~
Oct
When trying to get this to work on an Arduino Nano 33 IOT I ran into issues picking the correct wifi driver and also found that the dtostrf method caused compile errors.
Swapping out the function fixed my issues.