Torch your home for $4. (with schematic)

Loading...

Thanks! Share it with your friends!

You disliked this video. Thanks for the feedback!

Loading...
Added by admin
36 Views
This smoke detector is particularly interesting because it doesn't use the normal dedicated control chip, but instead uses what appears to be a very cheap and common microcontroller.
I was reminded about this unit when Mike of the channel mikeselectricstuff mentioned he'd found a Chinese component supplier selling microcontrollers for 3 cents each (minimum of just 10). Better still, they do actually have an English manual and downloadable development environment. Sadly there doesn't appear to be a programming algorithm for the common universal programmers.
Here's a link to Dave's video:-
https://www.youtube.com/watch?v=VYhAGnsnO7w
And a link to Mike's excellent channel:-
https://www.youtube.com/user/mikeselectricstuff
(It's really worth subscribing to.)

The microcontrollers are OTP devices (One Time Programmable) so you would wreck one with every version of the software you tested. But hey, they're 3 cents each. And for the final production run they would just be a common cheap component on the PCB.

If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Category
Found on ebay

Post your comment

Comments

Be the first to comment