I’m trying to get data from my solar controller, which supports RS485. I have a USB to RJ11 cable connected to a Raspberry Pi4. I can see the USB device under hardware. Device path:/dev/ttyUSB0 ID:/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_BG00ZBE2-if00-port0 However, the Modbus2MQTT addon keeps …

I just plugged the USB device into my RPI4. RJ11 end in Solar Charge Controller. I know the charge controller detected it because as soon as you connect the cable, the screen goes blank. I tested with wizard and I see “modbus hub connected”, but adding any register/entities for this charge controll…

Modbus permission errors

Configuration

IOT7712 March 6, 2026, 7:37pm 2

How?
[Please quote any code using the forum </> formatting options.]
Have you tried the protocol wizard yet?