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  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Mon Jun 15, 2009 10:53 am   Subject: arduino max input voltage
Alan:

The arduino can handle up to 12V, although it's calibrated to 5V - I haven't looked hard about how to recalibrate, because I don't need to read higher voltages. Also, I have to look again, b ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Sun Jun 14, 2009 8:58 am   Subject: it's working...
hmmm...I posted this the other night, but it's not showing in thread, so here goes again.

Thanks to Alan and others, I've got my machine working. It's still breadboard-explodey, and ugly, but it's ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Sun May 17, 2009 8:55 pm   Subject: need help building human-powered video player

Those voltage sensing circuits are basically going to give you an on or off indication.

I thought that a transistor would amplify (or in this case, de-amplify) a current...shouldn't I see a scal ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Wed May 13, 2009 6:57 pm   Subject: Next steps - build the required circuitry
OK - I've got my Arduinos and relays (omron g5v-1), and I'm trying to figure out how to connect everything together, and have some more questions.

Problem 1: Detect power

I've decided to leave a ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Fri Apr 24, 2009 6:11 am   Subject: need help building human-powered video player
The Duracell 600 portable power pack is what is recommended by the generator plans I'm using - it's a combination inverter and battery pack, which should serve to buffer the spiky output of the genny, ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Thu Apr 23, 2009 10:58 pm   Subject: need help building human-powered video player
Alan:

So, to be clear, I'd power the arduino from the player power supply, connect it to two relays which would bridge the player power and play button contacts, write the appropriate code to detec ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Thu Apr 23, 2009 10:42 am   Subject: need help building human-powered video player
alan:

sounds like a simple enough solution - i've been perusing the schematics for a dvd player, and with my limited understanding, it looks like i've got to send a low voltage signal to the correc ...
  Topic: need help building human-powered video player
popijininsky

Replies: 14
Views: 43700

PostForum: Electronic Help   Posted: Wed Apr 22, 2009 10:46 pm   Subject: need help building human-powered video player
Hey, all.

I'm building a bicycle-generator-powered modern version of a mutoscope (http://en.wikipedia.org/wiki/Mutoscope), and I'm stuck on one problem - I need to start video playback when the gen ...
 
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