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Espressif modes of networking
Espressif SoC devices ESP32 and ESP8266 can use a few WiFi network modes (applies to layers 1–3 in ISO-OSI model):
as WiFi client connected to WiFi router (Figure
1),
Figure 1: ESP client mode.
as independent WiFi access point (Figure
2),
Figure 2: ESP AP mode.
as a repeater with devices connected to ESP and ESP connected to an external router (Figure
3),
Figure 3: ESP dual mode.
as client and server in mesh network (Figure
4).
Figure 4: ESP mesh networking.