The KAmod ESP32 ETH+POE board contains ESP32-WROOM module enabling communication in 2.4 GHz Wi-Fi wireless network, however it has been connected to Ethernet wired interface with typical RJ45 connector. Programming ESP32 module is possible with USB-UART converter with USB-C connector. The board is complemented by PoE power supply system – Power over Ethernet, thanks to which power supply of the module can be supplied from internet installation. The board design corresponds to SBC of Raspberry Pi family – it has dimensions 81×56 mm, and on characteristic 40-pin connector all important I/O ports and supply voltages 5 V and 3.3 V, which can power additional components connected to the board, have been led out.