Power supply mode: 3.3V external power supply, current should be more than 200mA. USR-ES1 is an Ethernet module with a SPI interface. The interface is TTL level of 3.3V, power supply voltage of + 3.3V. Please ensure that the current is not less than 200mA and the voltage is continuous and stable + 3.3V. W5500 SPI to LAN Ethernet Network Module TCP IP STM32 Interface 3.3V 5V, for Arduino, WIZ820io, RC5.
PCB size: 23 * 25 mm.
Control interface: TTL level, 3.3V SPI interface