├── HelloServer                 # WebServer using ETH
├── SDWebServer                 # SDWebServer using ETH
├── SPIExample                  # SPI initialization example
├── UnitTestExample             # ETH example
├── SPI_Wire_DevicesExample     # SPI bus & Wire sharing example
├── SharingSPIBus               # SPI bus sharing example
├── StaticIPAddress             # Example of static IP address
├── UDPClient                   # UDP Client Example
├── LoRaShiled                  # LoRa Shiled Sender Example
└── WireExample                 # Wire initialization example

# main points
Board -> ESP32 Dev Module
PSRAM -> Disable