STM32 Ethernet-RS485 MySensors Gate

This gateway is based on the STM32F103CB(8)T6 MCU. A fairly well-known WIZnet chip, the W5500, acts as an Ethernet chip. The transport of this gateway in the Mysensors network is the wired RS485 interface. The chip - MAX13488EESA + T was chosen as the RS485 driver, including due to the presence of the automatic selection of the direction of reception / transmission.