Hello,
Ik want to read my slimme meter in HA. Bought a P1 cable and connected it to my HA instance. Used putty to check if data is being send through the p1 cable and this was the case. When i add a DSMR sensor in configuration.yaml, I see that there are entities created. These enitites show no data. I can also not set the /dev/ttyUSB0 in de DSMR sensor. Configuration reload tells me that the configuration is invalid. I googled, but nothing could help me. I’ve installed HA on an armbian linux.