Is there a way to connect wirelessly between a Modbus device and an HA Green hub? E.g. by using the wifi on an ESP32 which is hard wired to the device’s Modbus and uses the wifi to pass the data to the HA, via the router? Or through a Zigbee to modbus converter, if such exist? I have a ZBT-1. I ask…

Modbus wireless connection

IOT7712 January 30, 2026, 1:09pm 6

RS485/Modbus will run for ten times further then Ethernet or WiFi, reliably.

When you get your adapter (WaveShare are popular ones) try the Protocol Wizard add-on to test everything and set it up.