Looking for guidance to build a Proximity Sensor with an audio output to an external speaker over 3.5mm jack.
Am a total newbie and am looking for pointers of what to google for.
Proximity of what, and over what distance?
To detect if there is a person within 10ft.
To discriminate a person from other objects is probably much harder than you imagine, but with some effort the AMG8833 thermal imaging sensor could be made to work.