Poundland's spooky lights.
Added 2018-10-09 02:36:46 +0000 UTCThese are SO annoying. The novelty wears off very quickly.
https://www.youtube.com/watch?v=2m9utv54IGs
Like many other Halloween novelties they can be a bit loud and repetitive, especially as they appear to be sound activated. But they can be scavenged for bits.
Comments
I like it!
Gadgetman
2018-10-10 23:44:06 +0000 UTCBut that wouldn't have detected vibration like the piezo does.
Gadgetman
2018-10-10 23:43:18 +0000 UTCCant believe they missed the trick of having the speaker double up as a microphone - could have saved them a few cents ;-)
Gordo
2018-10-10 21:16:36 +0000 UTCNo. Sadly not. I prodded both the other resistors with a licked finger to try and get it to change pitch and nothing happened.
Big Clive
2018-10-10 18:26:17 +0000 UTCis it one of the noisy things that gets more amusing if you poke a resistor with a licked finger when its making noise?
Zach Allin
2018-10-10 00:39:44 +0000 UTCReally benefit from your circuit breakdown and explanations. Each time I get to understand a little more confidently how the main components work. Thanks.
2018-10-09 11:44:02 +0000 UTCInteresting, but yeah that noise got old before the video was over! :D I suppose one could add a pot for volume control, but it should have at least one other LED mode.
Michael Thompson
2018-10-09 06:55:56 +0000 UTCI'd guess they're mask programmed at the factory. The Halloween market is so huge that it's probably a very common chip.
Big Clive
2018-10-09 06:45:26 +0000 UTCDo you know how they program those chips? I assume it is a pretty generic package under that silastic/tar? Do they just send the sound effects to the factory that makes them?
Lostngone
2018-10-09 06:17:27 +0000 UTCwe don't have most of the cool led caps you have
God 420
2018-10-09 03:23:17 +0000 UTC
