Sorry, editor became a little weird as I was adding the sample code.

We have:

WiFiMulti wifiMulti;

wifiMulti.addAP(WIFI_NETWORK_NAME_1, WIFI_NETWORK_PASSWORD_1);

wifiMulti.addAP(WIFI_NETWORK_NAME_2, WIFI_NETWORK_PASSWORD_2);

while (wifiMulti.run() != WL_CONNECTED) { delay(1); }