I want to use OpenMqttGateway for my home assistant project. After some reading I saw that it is also possible to use an Arduino (which I already have in my possession, a Nano). However it seems to require an ethernet module (W5100).
Because I have my Arduino plugged in with my Raspberry Pi (3b), I was wondering if I could also use this USB connection as a ‘gateway’ to transfer the input to the MQTT gateway. Is this possible? If so, is there any guidance on how to achieve this?