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    Simple serial to IrDa

    Hi, hope this is the right place to ask for advice. I use a GPS with my pocket pc via serial cable. It is a simple connection with only 3 cables. Now I moved to a Palm Tungsten T|X. By the documentation it seems the serial wiring is not that simple and not really a standard serial connection...
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    Electrostatic generator?

    Sorry if this is not the right place... I totally don't know where to put this. It is a mixed idea and question as I'm no expert in this field., Ok, so: 1. I have seen electrostatic generators claiming to generate lots of power (van de Graaf) The thing is this we can only get big sparks and...
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    Proximity alarm for camping

    Sometimes it is hard to find a nice and safe place to camp. I've been there... and while you need to rest, you pray to be aware when somebody or something is approaching to your tent in the wild. So I recalled this "burglar alarm" I saw on a electronic book years ago. Instead of using a battery...
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    Reducing 6.4V 2,700mah for a pda (ext battery)

    Hi, I'm new here and found a post (in this forum) about using diodes to reduce the current but couldn't understand it quite well as others suggested other ways and putting some capacitors on the system (  ???  ) I have a PDA which uses an external folding keyboard. I use it to write when I...
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