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Im not sure of I am on the correct stackexchange, but does anyone know how I could make a card the size of a credit card with something like a GPS/bluettoth/RFID module that could be detected from a relatively long range. The purpose is to see where this card is on a map for example.

Are there GPS modules that are that small?

If someone could direct me to some tutorials or help.

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Probably ask @ DIY – Sathya♦ Dec 9 '10 at 19:58
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GPS modules cannot be detected, its the other way around, GPS detects satellites and converts that data into a location. – Moab Dec 9 '10 at 20:06
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@sathya - I would have thought Electronics & Robotics – ChrisF Dec 9 '10 at 20:33
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if you want something like lojack you would have to combine a GPS module with a transmitter. the combined device could then send its location to whatever was set up to receive it. – Xantec Dec 9 '10 at 20:50
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Check with the US government. They are already tracking all money in circulation. – Mike Chess Dec 9 '10 at 20:58
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closed as off topic by Sathya♦, ChrisF, Randolph West, KronoS, digitxp Dec 9 '10 at 22:39

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