Requirement for WiFi connection: you need to create WiFiConfig.h.default with WPA2 PSK SSID and password. Example format for WiFi configuration file is listed in connect_wifi/WiFiConfig.h.example.
ESP32 ---- Latching Relay
- 4 ---- SET
- 16 ---- UNSET
- GND ---- GND
- 3V3 ---- 3V