The V2 of the Inosmart lock requires a gateway to get any usefull interfacing. That gateway is overpriced (my judgement). Anybody any idea on connecting an ESP to the bus (RS485?) directly?
Not possible.
First of all you need to know for sure it’s RS485, and even then you need Uartt-Rs485 converter.
That makes it not easy. But still possible.
Opposite. There’s nothing difficult, but it’s not possible to connect directly esp to rs485.