Minimal PIR detector for use in lights
Added 2024-12-21 00:15:44 +0000 UTCA very cheap and surprisingly simple PIR sensor that is probably designed to be built into lights. It has a fixed sensitivity and time delay of 20 seconds that does retrigger if more movement is detected within that 20 second time.
One of the most interesting features is the classic low control current switching approach of using a thyristor to shunt a rectifier.
Comments
Mainly keywords, but sometimes they use very odd keywords.
Big Clive
2024-12-21 04:13:03 +0000 UTCClive : have you tested the detection with non-human parts? Maybe a hot spoon for example.
NN Thomas
2024-12-21 02:21:07 +0000 UTCThe 'trick' to finding anything on lots of websites is to use google search. This is because most websites want you to spend more time browsing that way you're more likely to buy something else as well as (or instead of) what you were looking for. This is especially true for emporium-like websites.
NN Thomas
2024-12-21 02:18:11 +0000 UTCWhat is the secret to finding things on AliExpress? Is there a category you can browse or do you have to rely on keywords?
Mark Trombley
2024-12-21 01:31:33 +0000 UTC
