Arduino Mega + Ethernet Shield rack mount

I had to design a Modbus to MQTT gateway for integration of my Solar Inverter to Home Assistant.

An arduino mega together with the Ethernet shield and an RS485 shield were used.

The whole design can be mounted to a 19inch rack taking 1U height.

Three of these can be printed and attached together to cover the whole length of the rack.

4 leds and a slider switch are also provided for status indication