WiFi
useStaticIP()
Instructs the system to connect to the network using the IP addresses provided to
WiFi.setStaticIP()
The setting is persistent and is remembered until WiFi.useDynamicIP() is called.
This API is only available for the Photon and P1 (Gen 2).
On the Argon, P2, and Photon 2, static IP addressing requires Device OS 5.3.0 or later and uses a different API. See NetworkInterfaceConfig.