Let's Make Robots!

need supply enough power ! but how?

i need some help here pls *_*

to make my project portable & cable free. it has to be low power operated using DMFC(Direct-methanol fuel cells)
thus chemical part i've almost completed.

BUT the really issue is how to tap/use the low voltage generated ( around 0.5V)
my final circuit require 5V to operate.

suggest were using voltage boost convertor .

So does any know how? 
any IC chip that i can apply for 0.5V input to output 5V  for 
voltage boost convertor?
pls advise. thanks

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look neat ! thanks.
i can reference from.

but i'm doing from 0.5 V to 5V .
hoping for more assistance here pls if any.