Homematic HM-WDS30-OT2-SM - some channels corrupt

DrGrandios · June 12, 2019, 6:24pm

I have a Homematic HM-WDS30-OT2-SM outdoor thermal sensor connected to Homeassistant via Homegear. I used it to automate the pump on our pool, one sensor reads the water temperature, the other reads the temperature of the solar heating (so I can activate the pump only when solar heating won’t cool down the water…).

The thermal sensor has 4 different channels which are shown in HA as individual sensors: temperature of sensor 1, temperature of sensor 2, differential temperature 1 - 2, differential temperature 2 - 1

This was working nicely last summer, but unfortunately something has changed in between. Summer is coming so I put up our pool yesterday and reenabled the pool control in HA. The first temperature value is still okay, but all other channels seem to have “peaks” which look like sensor 1 readings:

The bottom line seems to be the real water temperature, the top line seem to be peaks that equal readings of the solar heating temperature.

When I look at Homegear’s logging, the sensor readings seem to be okay, there are no peaks visible. I’m not quite sure where to look next - pyhomematic? Or the HA module?

Has anybody seen something similar and give hint?

Thanks!

danielperna84 · June 12, 2019, 10:27pm

I don’t have that device, but to my knowledge nothing in the code has changed that would cause this kind of regression. The only thing I can imagine would be, that all 4 sensors get updated as soon as any of the channels gets a new value. So please check if all for graphs look equal. In that case it would be a bug in the HomeMatic component in Home Assistant that slipped in unintentionally.

DrGrandios · June 13, 2019, 5:01am

Thanks - I’ll try to trace the path of data coming from pyhomematic towards the HA component first.

DrGrandios · June 13, 2019, 5:40am

Short question - is there a way to enable debug logging at runtime? I’d like to see the logging output of the Homematic component, for example this one:

_LOGGER.debug(“Event %s for %s channel %i”, attribute, hmdevice.NAME, channel)

danielperna84 · June 13, 2019, 8:36pm

You can set individual log levels in the configuration.yaml file like this:

logger:
  default: warning
  logs:
    pyhomematic: info
    homeassistant.components.homematic: debug

DrGrandios · June 14, 2019, 4:08am

That is helpful, thank you! I’ll try that out this weekend.

DrGrandios · June 14, 2019, 7:06pm

Okay, this looks wrong:

2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'TEMPERATURE' value: 24.0
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'TEMPERATURE' value: 24.0
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'TEMPERATURE' value: 24.0
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 1 TEMPERATURE received event 'TEMPERATURE' value: 24.0
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 1 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'TEMPERATURE' value: 22.9
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'TEMPERATURE' value: 1.1
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'TEMPERATURE' value: -1.1
2019-06-14 19:35:30 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'LOWBAT' value: False

Looks like the Homematic component receives an update for all channels with temperature of sensor 1. Afterwards the correct updates for the other channels are received…

Here is another one with the additional pyhomematic logging:

2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=RSSI_DEVICE, value=-83
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:0, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:1, interface_id=homeassistant-homegear, key=TEMPERATURE, value=22.4
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'TEMPERATURE' value: 22.4
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'TEMPERATURE' value: 22.4
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 1 TEMPERATURE received event 'TEMPERATURE' value: 22.4
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'TEMPERATURE' value: 22.4
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:1, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 1 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:2, interface_id=homeassistant-homegear, key=TEMPERATURE, value=22.8
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'TEMPERATURE' value: 22.8
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:2, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 2 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:3, interface_id=homeassistant-homegear, key=TEMPERATURE, value=-0.4
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'TEMPERATURE' value: -0.4
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:3, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 3 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:4, interface_id=homeassistant-homegear, key=TEMPERATURE, value=0.4
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'TEMPERATURE' value: 0.4
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:4, interface_id=homeassistant-homegear, key=LOWBAT, value=False
2019-06-14 21:10:56 DEBUG (Thread-24) [homeassistant.components.homematic] PoolTemperature 4 TEMPERATURE received event 'LOWBAT' value: False
2019-06-14 21:10:56 INFO (Thread-24) [pyhomematic.devicetypes.generic] HMGeneric.event: address=OEQ0674126:5, interface_id=homeassistant-homegear, key=LOWBAT, value=False

pyhomematic logs a single temperature event and the Homematic component reports this temperature for all channels.

danielperna84 · June 15, 2019, 2:52am

Ok, that’s a bug. Please open an issue here, along with the logs you have just posted.
This issue may also be related.

DrGrandios · June 15, 2019, 9:33am

Check:

DrGrandios · July 13, 2019, 3:51pm

I added a potential fix to the issue - maybe someone likes to take a look …