KC868-HA RS485 INPUT & OUTPUT plugin for ESPHome

[gizmo]

I think I found the issue. It looks like the Dingtian-Tech relay board I have is using a BL3085 RS-485 transceiver. From what I understand it runs at half duplex requiring a pin to be pulled high in order to transmit. But ESPHome with its current UART implementation does not support flow control.

So I think that is the issue im having with the one way communication. I will of course verify this once I have received my order of the KC868-A2 and I will report back.

Thank you for your help.