I have the expected PIR motion detector issue while standing in my shower (It does not recognize me).
Already tested it using a hue and a homematic sensor. I had one in the shower cabin but I think this is not very healthy for the hardware.
So I would be happy if there is someone experienced in different motion sensors.
Is there some hardware solution available which is working through glass? It should be tasmota, esphome, hue or homematic compatible. I don’t want to add another hub.
Or is there another smart thing recommended which will detect me while I am inside my shower?
No soldering needed I don’t have too much experience with off the shelf solutions, but there are lots available on Amazon / ebay etc. Search for microwave motion sensor. If you want to make it wireless, you will typically need an existing sensor (Wifi/Zigbee/Zwave/whatever) with a dry contact entry. I do have (excellent) experience with the Bosch BDL2-WP12 series, but they use a combination of PIR and radar. I’m not sure you can disable to PIR part, so they won’t really help much in your case.
Presuming that you close the bathroom door whilst showering, a far simpler method is to accompany your motion sensor with a door sensor and operate the ‘wasp in a box’ principle.
If the door is closed and subsequently motion is detected, then the room must remain occupied until the door is opened again, regardless of whether further motion is detected.
Only works if the door is always closed when you shower, not randomly opened and closed again by your significant other while you shower and your door is closed when you finished showering. Lots of potential failure modes that reduces WAF (or GFAF in my case )
Microwave is actually not great at penetrating glass, so that’s probably out. I have a PIR sensor attached to the ceiling at about 8-10’ (depending on the shower), right above the shower. It performs perfectly.
Actually longer wavelength MW around 3-6 GHz is perfect at penetrating glass. The 24GHz ones will suffer a little attenuation, but will still work well. I have several MW sensors operating through glass (even double pane insulated), there is no notable attenuation.
Physics suggest otherwise Of course in the end it depends on the type of glass. Some types of thermal / IR reflecting glass have extremely thin metal coating, this will indeed kill the signal. Usually you won’t find this type of glass in a shower though.
I live in a home with 6 others; partner and 5 children. Bathroom doors have bolts for a reason, people wandering in and out of the bathroom whilst it’s in use is just weird.
I don’t have too much experience with off the shelf solutions, but there are lots available on Amazon / ebay etc. Search for microwave motion sensor. If you want to make it wireless, you will typically need an existing sensor (Wifi/Zigbee/Zwave/whatever) with a dry contact entry. I do have (excellent) experience with the Bosch BDL2-WP12 series, but they use a combination of PIR and radar. I’m not sure you can disable to PIR part, so they won’t really help much in your case.
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