[maemo-developers] USB web cameras with 770

[From: Andreas Hubel]

Antti Saarto schrieb:
> many usb devices don't really need +5v.. Has anyone tried to
> connect the + terminal (~3.6V) from to the USB +5V signal?

is there a pin with 3V output voltage, which one?

I have thought of using the 4th normally unused pin (see english
wikipedia for more information) of the mini usb jack to get 3 volts
outside the device. there connect a power up converter like MAX 756 to
this pin and inject the 5v output to the normal power pins. I think that
might work, but I haven't tested yet.

mfg ah



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