Fritzbox presence detection blocks main thread?

Configuration
1

Hi,

I’m using HomeAssistant mainly to switch some 433MHz RF switch sockets.
They’re attached to the GPIO of my RasPi.

switch:
- platform: rpi_rf
  gpio: 27
  switches:
    example:
      code_on: 4264273
      code_off: 4264276
   ...

Today I recognized, that the sockets didn’t react anytime I pressed a switch (they only worked maybe 1 out of 3 times).
At first I thought it was a problem with the antenna, but after measuring the GPIO with my oscilloscope I found out, that there was simply no signal.

So I started commenting out lines in my configuration.yaml to see, which component is the problem.
When I commented out

device_tracker:
  - platform: fritz

everything was working fine again.

I restarted HomeAssistant (with --open-ui) and saw, that this line appears every 3-5 seconds:

17-04-06 14:47:43 INFO (Thread-9) [homeassistant.components.device_tracker.fritz] Scanning

So my final guess is, that the fritz-tracker is blocking the main thread (or the same thread, rpi_rf runs in).

Does anyone now, how to fix this ? (I will try myself, but I’m not too much into python)

Thank you in advance
Matthias

2

Hi @matthinc, have you tried the fritz config with host, username and password?
All additional packages installed like described in the docs?
Does the device_tracker work and show devices?

3

Hi @VDRainer,

yes, I installed all dependencies and tried all possible configurations.
As a temporary fix I use interval_seconds: 300. But that’s not a permanent solution, I think.

The device tracker is working just fine and is showing all devices.

I will investigate further tomorrow.