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Old 03-02-12   #1
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Drawing Power For Pen Drive Mods


Hi,

As some of you must already know we are going to be having a pen drive modding contest shortly and I was wondering of different ways of modifying a pen drive.

While the passive-cosmetic mod is the simplest, I think the more active mods will take the cake. The pen drive could therefore include some LED's to light up things, sound effects or even motion effects by small motors/drives.

In order to power these, power is best drawn from the USB port itself rather than from an external battery source. I could think of two methods of doing this :

1. Solder small wires to the ends of pins 1 and 4



While this process is most compact, it is cumbersome and requires an SMD soldering tip iron and skill. Wrong solder could damage the pen drive. The pen drive also needs to be opened for this and this is not possible on all models.

2. Use a USB extender cord and connect two wires in parallel to wires 1 and 4 coming out of the USB head. Put the pen drive at the end as normal. This process is simplest but it adds to the size and cost. The increase in size could make certain mods impossible.

What do you guys think? Do you have any other ideas?
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Old 03-02-12   #2
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Re: Drawing Power For Pen Drive Mods

i was thinking of a sequential led strip that lights up like a bar meter depending on the free space of the pendrive. One light for empty pen drive and 5 for a full pendrive, but tyen it would have to be a microprocessor based mod at the hardware level..

Though yeah, if someone could do that, he would take the cake for sure..

The idea u are thinking would be best with option 1. The mechanism drawing power from the pendrive itself.. Like those humping dogs that u get who start humping the usb port when you plug them in..
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Old 03-02-12   #3
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Re: Drawing Power For Pen Drive Mods

I just happen to have a certain flatmate (Electronics engineer) with expertise in embedded systems ..

I hereby declare JD666 as my inspiration ..
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Old 03-02-12   #4
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Re: Drawing Power For Pen Drive Mods

Originally Posted by vijayninel View Post
power is best drawn from the USB port itself rather than from an external battery source. I could think of two methods of doing this :
What is the voltage that you get on these lines?

Originally Posted by JD666 ♥ View Post
Like those humping dogs that u get who start humping the usb port when you plug them in..
LOL
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Old 03-02-12   #5
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Re: Drawing Power For Pen Drive Mods

I think the humping dog mod is the best use of drawing power from the pen drives..
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Old 03-02-12   #6
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Re: Drawing Power For Pen Drive Mods

Originally Posted by krashnburn ♦ View Post
What is the voltage that you get on these lines?


Voltage is 5V ie .. no more than 5.25 V and no less than 4.75 V (5 V5%)
Current drawn is 500mAh max.
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Old 03-02-12   #7
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Re: Drawing Power For Pen Drive Mods

Originally Posted by krashnburn View Post
What is the voltage that you get on these lines?
5 V and you can load about 500900 mA. You can use a small resistor to reduce the voltage further.
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Old 03-02-12   #8
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Re: Drawing Power For Pen Drive Mods

Originally Posted by krashnburn View Post
What is the voltage that you get on these lines?


LOL
Originally Posted by ManISinJpr View Post
I think the humping dog mod is the best use of drawing power from the pen drives..
wait till you google for the vibrator mods... ( yup runs off a usb )... the ones i personally liked were the foot slip ons that have a built in heater, and the wrist pad which is a blessing when you wanna type in the cold.
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Old 03-02-12   #9
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Re: Drawing Power For Pen Drive Mods

Originally Posted by vijayninel View Post
You can use a small resistor to reduce the voltage further.
How to Reduce Voltage With Resistors | eHow.com
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Old 03-02-12   #10
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Icon7 Re: Drawing Power For Pen Drive Mods

How about something like this?

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Old 03-02-12   #11
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Re: Drawing Power For Pen Drive Mods

Why is this thread under moderation ? who on this planet has the power to moderate the agent
My condolences to that poor guy
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