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Author Topic: Intresting...(For me at least)  (Read 3162 times)

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Offline Private ReidTopic starter

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Intresting...(For me at least)
« on: March 31, 2008, 03:04:37 AM »
Hello.

Just a few days ago our street had a recycling day, well i decided that I would take a look a other peoples junk. Because...I man's junk is another man's treasure!. Anyway I found a usb cable (it used to be for a MP3 player). I chopped the end off (the side were you plug it into the MP3) and found five wires there was a

Red
Black
Green
White
Non insulated wire (silver)

I look on the net to discover the green, white and non insulated wires were data wires and the red and black were power ones. I also found out that USB gives 5 V by 1.5 A

Soon I had made my USB charger (I know you can buy them in shops, but c'mon this is sooo much more fun!) It now charges my $50 robot batteries.

I am very pleased with my discoveries!  ;D

Offline lkik

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Re: Intresting...(For me at least)
« Reply #1 on: March 31, 2008, 03:51:51 AM »
yea usb cables are realy useful i atached 1 to my xbox controler so that i could use a mp3 as a xbox memery device

Offline Private ReidTopic starter

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Re: Intresting...(For me at least)
« Reply #2 on: March 31, 2008, 04:07:45 AM »
yea usb cables are realy useful i atached 1 to my xbox controler so that i could use a mp3 as a xbox memery device


LOL

Smart Idea!

Offline TrickyNekro

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Re: Intresting...(For me at least)
« Reply #3 on: March 31, 2008, 05:18:36 AM »
I don't know whether the silver wire is data transfer...
It probably is ground...

USB has only 2 data wires D+ and D- ....

And I also know that USB won't supply the 1A5 without knowing a device is mounted...

Anyways, can you share schematics...


Cheers, Lefteris
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

Cheers!

Offline lkik

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Re: Intresting...(For me at least)
« Reply #4 on: March 31, 2008, 05:25:45 AM »
yea usb cables are realy useful i atached 1 to my xbox controler so that i could use a mp3 as a xbox memery device


LOL

Smart Idea!
well i mainly did it so i could try to softmod my xbox but it failed my first attempt
but i am still trying
« Last Edit: March 31, 2008, 05:26:36 AM by lkik »

Offline ed1380

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Re: Intresting...(For me at least)
« Reply #5 on: March 31, 2008, 05:50:08 AM »
i thought usb supplied only 500mA
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

Offline superchiku

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Re: Intresting...(For me at least)
« Reply #6 on: March 31, 2008, 06:23:20 AM »
DONT KNOW ABT USB'S BUT YES I HAVE DO NOTICES THAT WHEN U ATTACH MP3 PLAYERS OR PHONES TO UR PC VIA USB , THE BATTERY STARTS CHARGING

AND MAY BE U HAVE JUST DISCOVERED A WAY TO HARNESS IT IN A BETTER WAY ....

HOPE U SHARE THE SCHEMATIC
JAYDEEP ...

IT AND ROBOTICS ENGINEER

"IN THE END IT DOESNT EVEN MATTER"

Offline TrickyNekro

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Re: Intresting...(For me at least)
« Reply #7 on: March 31, 2008, 09:14:16 AM »
i thought usb supplied only 500mA

+1 you have a point!!!
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

Cheers!

Offline michaelsane

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Re: Intresting...(For me at least)
« Reply #8 on: March 31, 2008, 04:11:00 PM »
Please tell me you are using decent diode protection so you don't fry your computer  :o
A flash drive broke off in one of my friends usb ports and shorted it out and the thing wouldn't boot until he finally realized there was a bunk drive in his port lol. 

Offline ed1380

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Re: Intresting...(For me at least)
« Reply #9 on: March 31, 2008, 04:46:53 PM »
AFAIK the computer doesnt need to realize soemthing is plugged in, for it to give power to that drive.

the power pins on the usb drive are longer than the data pins, so that when you insert it, the chips get power before sending data
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

Offline Private ReidTopic starter

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Re: Intresting...(For me at least)
« Reply #10 on: April 01, 2008, 02:44:31 AM »
i thought usb supplied only 500mA

+1 you have a point!!!


SOZ  :D


I don't know whether the silver wire is data transfer...
It probably is ground...

USB has only 2 data wires D+ and D- ....

And I also know that USB won't supply the 1A5 without knowing a device is mounted...

Anyways, can you share schematics...


Cheers, Lefteris

LOL SOZ AGAIN...I WAS WRONG AGAIN!  ::)


As 4 the schematic I shall attempt to make one...                                 (EXPECT DELAY ;D )


Please tell me you are using decent diode protection so you don't fry your computer  :o
A flash drive broke off in one of my friends usb ports and shorted it out and the thing wouldn't boot until he finally realized there was a bunk drive in his port lol. 


Diode?...LOL... :D

Maybe I should upgrade my charger ie. Add a diode...

Offline benji

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Re: Intresting...(For me at least)
« Reply #11 on: April 01, 2008, 03:29:49 AM »
so afterall does it supply 1.5 A or 0.5 A ?   ???
good ol' BeNNy

Offline Private ReidTopic starter

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Re: Intresting...(For me at least)
« Reply #12 on: April 01, 2008, 04:02:08 AM »
A USB Produces

Quote From Wikipedia   http://en.wikipedia.org/wiki/Universal_Serial_Bus   "The USB specification provides a 5 V (volts) supply on a single wire from which connected USB devices may draw power. The specification provides for no more than 5.25 V and no less than 4.75 V (5 V±5%) between the positive and negative bus power lines.[11] Initially, a device is only allowed to draw 100 mA. It may request more current from the upstream device in units of 2 mA up to a maximum of 500 mA."

Offline benji

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Re: Intresting...(For me at least)
« Reply #13 on: April 02, 2008, 03:57:34 AM »
thanks

schematic wanted,dead or alive .... ;)
good ol' BeNNy

Offline Private ReidTopic starter

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Re: Intresting...(For me at least)
« Reply #14 on: April 03, 2008, 02:46:49 AM »
thanks

schematic wanted,dead or alive .... ;)

So Far      Dead      >:(       Jeez   !!!

 


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