Anyone know of either an inexpensive cased PIR unit or an uncased board that will give me easy access to its detection signal please, ideally UK supplied?
Although I have several possible uses in mind, the first project will trigger an audible alarm (chime) in a couple of places indoors when someone approaches the front door. Day as well as night. The commercial devices I've found will need their photocells removed or obscured. The most important requirement is for easy access to an output for interfacing with my own circuitry. Last time I opened up a PIR operating a garden security lamp I probably gave up too soon, but I do recall it wasn't obvious.
Terry, East Grinstead, UK