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Forums
4hv.org :: Forums :: General Science and Electronics
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backup needed, geeky circuits

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polop
Tue Mar 03 2009, 10:21PM Print
polop Registered Member #1537 Joined: Thu Jun 12 2008, 06:44PM
Location:
Posts: 51
hi there i am currently woking on a project that houses as many geeky things inside a wallet, ive got a hv supply, lasers and led torch,
but for the real geek vibe i need something that is microcontrolled, ive got access to an avr programmer and any chips you suggest, throw some ideas this way if you can. thanks
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big5824
Tue Mar 03 2009, 10:34PM
big5824 Registered Member #1687 Joined: Tue Sept 09 2008, 08:47PM
Location: UK, Darlington
Posts: 240
finger print scanner :)
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polop
Tue Mar 03 2009, 11:00PM
polop Registered Member #1537 Joined: Thu Jun 12 2008, 06:44PM
Location:
Posts: 51
my intuition would say the circuit for fingerprint recognition is far to bulky for the wallet to have it and still carry money lol
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Bjørn
Wed Mar 04 2009, 12:35AM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
A calculator with morse input.
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Hon1nbo
Wed Mar 04 2009, 01:05AM
Hon1nbo Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
Bjørn wrote ...

A calculator with morse input.

how about a morse code transmitter? (assuming you have the license to transmit...)

maybe install a small LCD or OLED...
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Ken M.
Thu Mar 19 2009, 05:39AM
Ken M. Registered Member #618 Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
DaJJHman wrote ...

Bjørn wrote ...

A calculator with morse input.

how about a morse code transmitter? (assuming you have the license to transmit...)

maybe install a small LCD or OLED...

Full color uLED display IMO parralax has them for lcd trainig kits.
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hotcrazyfruit
Fri Mar 20 2009, 02:20AM
hotcrazyfruit banned on 5/26/2009
Registered Member #1877 Joined: Mon Dec 22 2008, 02:03AM
Location:
Posts: 147
how about a small coil gun o_O that shoots needles O.o no i was thinking a circuit that reads the money, and tell you its value, and you know exactly how much money you have in your wallet. or a radio.
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big5824
Fri Mar 20 2009, 09:30AM
big5824 Registered Member #1687 Joined: Tue Sept 09 2008, 08:47PM
Location: UK, Darlington
Posts: 240
few more ideas: bar code reader, mini camera, usb pen, mp3 player, some sort of transmiter
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aonomus
Fri Mar 20 2009, 11:36AM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Why not just make a tricorder and be done with it? :P
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LithiumLord
Fri Mar 20 2009, 12:05PM
LithiumLord Registered Member #1739 Joined: Fri Oct 03 2008, 10:05AM
Location: Moscow, Russia
Posts: 261
hehe the most usefull gadget I ever built was a TDA2822M amp - too simple, but still a very usefull device ;)
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