Using Espressif SoC devices in Arduino platform we can use all the previously described Arduino examples for sensors and actuators. But the most interesting are are those that use wireless networking functions. Both Espressif chip ESP32 and ESP8266 families can use similar network modes. As a WiFi device Espressif SoC can work in different networking modes (applies to medial layers 1–3 ISO-OSI model):

• as WiFi client connected to WiFi router (Figure 1),

• as independent WiFi access point (Figure 2),

• as a repeater with devices connected to ESP and ESP connected to external router (Figure 3),

• as client and server in mesh network (Figure 4).

ESP32 can also use Bluetooth networking in the same configuration as WiFi.