Bwalarm (akasma74 edition)

[tom_l]

PIR sensor presence detection

A passive infra-red sensor (PIR) triggers only when a heat source moves across zones of the sensor. So to stay triggered the heat source would have to be constantly moving. You can set up your automations so that the light only turns off if there has been no movement for a certain time. See here for an example of this sort of automation. See this diagram showing the zones of a typical sensor: [images] Some sensors are ‘pet-immune’. They don’t detect small heat sources moving down low. Most al…