Agreed, I have no outdoor sensors — but will be installing an outdoor siren. It is delayed by one third of the trigger time, so with 60 seconds trigger time — the outdoor siren is delayed by 20 seconds.
Should we set off the alarm by accident, we then have 20 seconds to fix it, before all the neighbors are alerted.
I found the PIR sensors to be too unreliable outdoor.
Right now I’m thinking about simply processing the outdoor cameras rtsp stream for people detection and then triggering is if it has a certain confidence.
Can be done quickly on the Pi with something like a google coral accelerator USB stick.
You can also have it send the photo it detects to your phone and you can manually turn on the alarm with that alert after viewing it.
Should we set off the alarm by accident, we then have 20 seconds to fix it, before all the neighbors are alerted.