Fake a PC connection via USB cable mod to fool the iPod Touch 3


F

Franc Zabkar

Geeks can be *unbelievably* stupid. I had an engineer at
work, *pick up a soldering iron by the hot end*.

A former employer used to quip that engineers couldn't measure a short
in an iron bar. But he hired me anyway. :)

- Franc Zabkar
 
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M

Man-wai Chang

[Note - I've taken the liberty of drawing a diagram of the circuit.]

You should have posted the original link:
http://www.gizmodo.com.au/2008/07/simple_hack_turns_usb_charger_units_into_iphone_chargers-2/

Read the comments from Leonard. He saved us one resistor.

+5V ---50k --- D-
|
10k
|
GND ---40K --- D+

--
@[email protected] Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and farces be with you!
/( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.38.4
^ ^ 21:55:01 up 5 days 1:56 1 user load average: 1.09 1.07 1.06
ä¸å€Ÿè²¸! ä¸è©é¨™! ä¸æ´äº¤! ä¸æ‰“交! ä¸æ‰“劫! ä¸è‡ªæ®º! è«‹è€ƒæ…®ç¶œæ´ (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
 
P

Paul

Man-wai Chang said:
[Note - I've taken the liberty of drawing a diagram of the circuit.]

You should have posted the original link:
http://www.gizmodo.com.au/2008/07/simple_hack_turns_usb_charger_units_into_iphone_chargers-2/


Read the comments from Leonard. He saved us one resistor.

+5V ---50k --- D-
|
10k
|
GND ---40K --- D+

Quite true. Good point.

When it comes to buying resistors here, it's cheaper to get a "pack of 100"
of all different values, than to buy individual resistor values. So if
you can find one of these, then that implementation will be a better
deal for you.

I notice the price has doubled since I got mine. Yikes. And we're supposed
to have a strong dollar.

http://www.thesource.ca/estore/prod...log=Online&category=Resistors&product=2719018

With a packet or two like that, you can fill your resistor bins pretty
quickly.

Years ago, I used to buy 10 of the same value for $0.50, snipped from
a reel. And that's how I started filling my resistor bins.

Paul
 
M

Man-wai Chang

When it comes to buying resistors here, it's cheaper to get a "pack of 100"
of all different values, than to buy individual resistor values. So if
you can find one of these, then that implementation will be a better
deal for you.

Thank you for the tip. But I seldom use resistors. Not a electronic
engineer myself. :)
Years ago, I used to buy 10 of the same value for $0.50, snipped from
a reel. And that's how I started filling my resistor bins.

I have a dead PC power supply. I guess I could salvage 10k, 40k and 50k
ohm resistors there.

--
@[email protected] Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and farces be with you!
/( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.38.4
^ ^ 16:42:01 up 5 days 20:43 1 user load average: 1.02 1.04 1.05
ä¸å€Ÿè²¸! ä¸è©é¨™! ä¸æ´äº¤! ä¸æ‰“交! ä¸æ‰“劫! ä¸è‡ªæ®º! è«‹è€ƒæ…®ç¶œæ´ (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
 
P

Paul

Man-wai Chang said:
Thank you for the tip. But I seldom use resistors. Not a electronic
engineer myself. :)


I have a dead PC power supply. I guess I could salvage 10k, 40k and 50k
ohm resistors there.

As a "resistor expert", you should keep a ready supply for experimentation :)

When you get one of those packs of 100 resistors, all mixed together,
it takes about ten minutes to find the one you want in there. You
get plenty of experience reading the color codes.

Paul
 
M

Man-wai Chang

As a "resistor expert", you should keep a ready supply for
experimentation :)
When you get one of those packs of 100 resistors, all mixed together,
it takes about ten minutes to find the one you want in there. You
get plenty of experience reading the color codes.

I am too old to become a electronic engineer. It's very hard for an old
person to memorize new things.

--
@[email protected] Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and farces be with you!
/( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.38.4
^ ^ 18:57:01 up 5 days 22:58 1 user load average: 1.01 1.06 1.05
ä¸å€Ÿè²¸! ä¸è©é¨™! ä¸æ´äº¤! ä¸æ‰“交! ä¸æ‰“劫! ä¸è‡ªæ®º! è«‹è€ƒæ…®ç¶œæ´ (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
 
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P

Paul

Chris said:
"Bad Boys Rape Our Young Girls But Violet Gives Willingly"

BSEE, Purdue, 1962

;)

Now that my eyesight is bad, I use the multimeter to check them,
more than I'm willing to admit.

Back when I was a student, getting a summer job to pay tuition was
pretty important. The only job I ever turned down, was a job that
involved... sorting resistors on a full time basis :) I like
resistors, they're fun, but not *that* much fun. At least you'd
learn the code pretty good...

Paul
 
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L

Loren Pechtel

Now that my eyesight is bad, I use the multimeter to check them,
more than I'm willing to admit.

Some of us had to use a meter from the start. I can't reliably read
the codes due to color vision issues. That was certainly a factor in
keeping me from doing too much with electronics.
 

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