tested on Feather M0 WiFi.
to connect to an unsecured network (no password), simply pass in an empty string for WIFI_PASS in the call
AdafruitIO_WiFi io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);
in the example code, can just change #define WIFI_PASS ""
tested on Feather M0 WiFi. to connect to an unsecured network (no password), simply pass in an empty string for
WIFI_PASS
in the callAdafruitIO_WiFi io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);
in the example code, can just change
#define WIFI_PASS ""