Reed switches gives a lot of false state changes

[nickrout]

Measure your voltage drop.

[ninjalife]

@nickrout

Measure your voltage drop.

Probably nothing significant because there is hardly any current flowing.

@martinst

As the smallest unit is seconds it’s not really visible how long the false-positives are but as said the easiest (software only) solution:

@ninjalife

just add a simple delayed_on filter which should fix your bouncing

binary_sensor:
  - platform: gpio
    pin: D5
    name: "Voordeur"
    device_class: door 
    filters:
      - delayed_on: 500ms # This value needs to be as low as possible but as high that there are no false-positives anymore

[martinst (Martin)]

I think I have solved the issue by using the new wire. It is shielded wire.

I will keep an eye on it for the next few days.

But is it also no good idea to have this shielded cable next to a 220v in a cable tray?

[Blacky]

Yea thought it looked like you could get some interference from power cables.

If you are not happy with it being next to the 220v in the cable tray just run it in some conduit or cable duct for extra protection.