#qi-hardware on 2013-02-19 — irc logs at freenode.irclog.whitequark.org

2011-11-28 00:09 Topic for #qi-hardware is now Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben / atusb 802.15.4 wireless, and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs

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21:54 <DocScrutinizer05> on a unrelated sidenote: in Germany the soap manufacturer "Sagrotan" selling massively subsidized electronic soap dispensers that have a nice ultra-low power IR light barrier, a motor with attached liquid (soap) pump and other small goodies

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21:55 <wpwrak> so what kind of critters are you building with that ? sex toys ? :)

21:56 <DocScrutinizer05> http://www.sagrotan.de/produkte-fuer-ihre-familie-koerperpflege-no-touch-seifenspender

21:59 <DocScrutinizer05> http://www.youtube.com/watch?v=P8azmSUB584

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22:07 <DocScrutinizer05> awesome feline starring: http://www.youtube.com/watch?v=ZAuMbdyJt2I

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22:14 <DocScrutinizer05> wpwrak: I actually pondered to exploit the sensor for completely different things

22:14 <DocScrutinizer05> battery powered light barriers anywhere

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22:16 <DocScrutinizer05> this thing runs since 6 months from one set of AAA here (even with motor). Giving it a power driver for the IR-LED, a beefy IR LED and a reflector, you could build a sensor/alarm from CR2025, with a 866MHz transmitter, size of a matchbox

22:17 <DocScrutinizer05> I'm also interested in the chip they use

22:19 <DocScrutinizer05> of course you also could feed your hamster with a marginally modified such soap dispenser ;-D

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22:20 <DocScrutinizer05> basically I'm just amazed it manages to keep a light based active sensor running for months from battery, while it still has response times of <500ms

22:21 <DocScrutinizer05> and that without ever (usually, at least for me) triggering false positives or false negatives

22:22 <DocScrutinizer05> plus it's basically dirt cheap, since subsidized. which makes it worthwhile to buy one just for fun of disassembling

22:23 <DocScrutinizer05> hell, it even comes "batteries included" ;-)

22:29 <DocScrutinizer05> hmmmm, hotdogs, mustard ;-P

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22:58 <wpwrak> (hamster) if it likes the taste of soap :)

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23:34 <DocScrutinizer51> wpwrak: well, I guess a new device will maybe have even less pleasant taste

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