Those of you who have been around as long as I have will shudder at the mere mention of "clap switches" where you had to physically clap your hands or shout to make things turn on and off. Really terrible things. But here we have a common style of Chinese LED lamp with an extra module that not only combines a light sensor, but also a sensitive audio circuit that detects a natural speaking level voice and turns the lamp on for about 45 seconds. So you could either use it to add a switchable lamp in an awkward location, or as a sound activated intruder deterrent.
As things like this go it's actually quite well implemented.
Bizarrely it even uses a very retro CD4011B CMOS logic chip to implement the sensing and timing.
As things like this go it's actually quite well implemented.
Bizarrely it even uses a very retro CD4011B CMOS logic chip to implement the sensing and timing.
How can I get hold of a lamp like this? I'd be grateful for info. I'd need one that screws into the
light socket.
This capasiytor doble2 more light second???
Lets call this a chinese spy lamp…its bugged ….haha
I got 2 similar sound activated LED lights, both have light sensors and are pretty good – especially for £1.19 each
how can I cancel this sensor? its so god-damn sensitive!
Where can I get some?
Increase the time constant so it stays on for 2 minute intervals then it would be good, especially for the toilet. I'd like one for my room that stays on for an hour now that I think of it. Mod it with a switch on the side so you can set it for 5-15 and 45 minutes for your bedside lamp
When you find something that is well-made and not going to kill us, can you put a link to it in the notes? Thanks.
An electret microphone acts as a variable capacitance not a variable resistance
Who is the supplier? Interesting lamp and I would like to get the same ones.
so when you are visiting the little room, you have to keep singing….oh that was for when there was no lock, oh well things dont change much!. Well maybe if you add a wifi module, it can spy on everything you say….
thats looks like quite a big microphone for such an application.