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> Question Abt. Japanese Page Re Bluetooth Mod
daniel3000
post Mar 14 2007, 12:32 AM
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Hi huys.

I'm considering to upgrade my Zauri with USB Bluetooth modules.
Since I want to keep the hardware compatible with standard kernels and don't want to do too many modifications to the hardware, I'm looking into the simple solution:
Take a normal USB BT module, connect it 1:1 to the USB port with a power switch, which will probably be blocking the USB port when BT is used. This limitation is okay with me.

I think this method is described here:
http://www.piro.hopto.org/~piro/pukiwiki/p...%A2%B2%BD%5D%5D

But since I cannot read any Japanese, would anyone able to read that please let me know how the switch must be connected?
From the pics it seems the switch only switches one line. But which one?
Is it really enough to switch only one line (probably one of the power lines)?
When the data lines are still co nnected to the BT module, can other USB devices which are attached in a normal way to the USB port still work without a problem?


Once I know all this, I will begin with the surgery and take some better pictures to put them onlilne.
I think this is a great way of enhancing the functionality of a Zaurus!

aTdHvAaNnKcSe
daniel
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dproldan
post Mar 14 2007, 10:31 AM
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I have tried something like that with a wifi dongle.
I used the dual pole approach, one switch for the ID pin to ground and another switch for +5v (ground on another test) to the dongle, the rest of the USB pins soldered directly to the pads under the Zaurus' USB connector.

The dongle worked fine with this setup when I turned on the switch, but I couldn't make anything else work in the USB connector. I suppose that when the dongle was turned off, the USB data lines had some noise or where connected to 5 v or ground. Maybe it wont happen with another dongle.

my 2 cents.

Daniel
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