[ale] OT: hacking wireless module

[Boris Borisov]

I forgot to take picture on my tablet. I have four pins on one side and two
on the other of the board. The side with two has printed on the main board
"antenna" I suppose these are RF and ground. The trick is to figure the
other four :)

I'm thinking of soldering it to my raspi or raspi zero if there usb header
or pins are available.

So can safe usb port.

On Nov 15, 2016 11:13 AM, "Charles Shapiro" <hooterpincher at gmail.com> wrote:

> Hmm. Pretty interesting.  A quick search on sparkfun ( http://sparkfun.com
> ) turns up an Arduino shield using the RT5350, which looks to my untutored
> eye like a pretty similar part.    The sparkfun shield costs, like, $60, so
> it might be worthwhile to get this one working.
>
> I take it the chips are SMD ed to the daughterboard?  That means you are
> probably not going to be able to un-solder them from the carrier.  Sounds
> like you have some poking around to do to figure out what is going on in
> there. USB is only 4 wires, so you have two unknowns. They could be extra
> power, extra ground, or even just there to strengthen the physical
> connection to the motherboard.
>
> As a first step, I'd power on the tablet (assuming it's still un-broken
> enough to do that) and use a multimeter to try to figure out which
> connection(s) is//are vcc and which is//are ground.   An oscilloscope might
> hint at which of those 6 lines are carrying data.
>
> -- CHS
>
> On Mon, Nov 14, 2016 at 3:29 PM, Boris Borisov <bugyatl at gmail.com> wrote:
>
>> I have broken cheapo tablet from which i'm thinking to salvage the
>> wireless module. The module is rtl8188eus mounted on small half by half
>> inch PCB. This small board is soldered in 6 points to the mainboard i think
>> easy to take out.
>>
>>
>> 1. I assume the board is connected via USB but no certain?
>>
>> 2. Anyone done it to give some advice?
>>
>>
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