DSMR sensor shows up, but there's no data

@rybloo wrote:

I’m trying to get the DSMR (Dutch Slimme Meter) to work. I can see the sensors in HA, but I get no values. I’ve got an ISKRA AM550 meter, connected with a FTDI FT232R USB dongle+cable from AliExpress, as mentioned on https://www.home-assistant.io/integrations/dsmr/.

It’s running on a supervised install on Ubuntu 20.04. The FTDI USB dongle shows up in the host on ttyUSB0, and I can see it in HA -> Supervisor -> System -> Hardware as /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AR4RH90H-if00-port0 (/dev/ttyUSB0 is visible there as well).

The sensor is configured as follows:

- platform: dsmr
  port: /dev/ttyUSB0 

and I’ve also tried without port, and with port:

  port: /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AR4RH90H-if00-port0

Adding the sensor did create a number of entities that I can add to the Lovelace UI:

entities:
  - entity: sensor.power_consumption
  - entity: sensor.power_consumption_phase_l1
  - entity: sensor.power_consumption_phase_l2
  - entity: sensor.power_consumption_phase_l3
  - entity: sensor.power_production
  - entity: sensor.power_production_phase_l1
  - entity: sensor.power_production_phase_l2
  - entity: sensor.power_production_phase_l3
  - entity: sensor.power_tariff
  - entity: sensor.gas_consumption
  - entity: sensor.hourly_gas_consumption

However, all of them show value “Unknown”. I’ve restarted HA, plugged the cable into the slimme meter again. I know the port of the slimme meter itself is in order, because I used to have another small device connected to it provided by the energy company, and that one did send over data to the company for live monitoring.

Does anyone know what’s wrong, or how I could troubleshoot this?

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