Ouch it was sold, sorry. I had to fix the signiture

I found something "strange" about powering my RPi...

RPi is running Raspbian Wheezy Oct-28 version

My setup, I've a 2-port 2000mA USB power adapter that I power up a 4-port USB hub via mini-power socket...

The connection is USB Power Adapter to 4-port USB Hub power socket then mini-USB to the regular USB port on the RPi (without the micro-USB)..

The RPi seems to be running fine without needing any connection to the micro-USB connection...

I got the Asus USB-N10 Wireless adapter working when plugged into this 4-port hub..

This setup save me a micro-usb cable and much more simple power connection to the USB hub and RPi...

USB port is rated for 250mA ? or some boosting it up to 500mA.

Powering the pi via the USB host port... hmmm the ethernet/usb chip already is pretty hot without the high 700mA pi back coursing thru it?

Do report back how long you can run it without any stability issues.

(it may just turn out to work... but not recommended as a lot of problems might pop up later on?)

edit * to add, I once tried to measure the voltage across the USB port's 5v pins. Turns out everytime i measure it, it will reset the Pi... I think I may have shorted it out ...

This post has been edited by skywardsword: Nov 10 2012, 05:34 PM

Check your power adapter's output voltage (as well as when plugged into the Pi).
It's probably borderline case.

This post has been edited by totally_skint: Nov 12 2012, 10:39 AM

In my case, t1 and t2 voltage turns out fine. I measured the usb port's voltage because i wanted to know which is positive and negative. without butchering cables.

Anyhow, I think it the reason it reset was because I stuck the probes and it might have shortciruited the pi's usb line.

Hopefully, no real damage done.

Since the psu is was measured at 5.2V at zero load. So its not like it shot up to 5.5 or >

I'd say it's easier (and safer) checking the pin-outs on the web.

But it is totally addictive when you have a red and black probe with pointy ends, your urge to stick it into everything surpass all logic.

Haha...

Any of u guys that order the pi when element14 got no stock, have u already receive the package ? if yes how long ? I'm planning to order in the next few days becos of free shipping offer.

waited half year. No news from RS ady...

sien til sky high

Cancel RS loh.


I am a happy element14 customer.


*I even cross shop some RS's components for electronic stuff.

RS so far for pi has been disappointing.

I have only heared satisfaction for element14 with regards to Pi.


Order from them, if out of stuff, they will call you and give eta ect ect.

i order alot of components from RS... so i chose to stick waiting for RS. But mana tau

Ok will order from them shortly. Try to order from RS but it's like i need to order the pi from uk site so need to use credit card or paypal which i don't have. Element14 easier becos can use maybank.

This post has been edited by tensai_kamen: Nov 12 2012, 05:39 PM

Bought mine from Element 14 Oct 31.
Payment hiccup with Public Bank debit card, finally paid through Maybank Nov 1.
Got call telling me Pi would be only available in three weeks.
I got the rest of my order within two days.
Now just waiting for my Pi.

Ordered HDMI-to-DVI and micro USB cable from ebay last week.

How much that dat hdmi2dvi cost you ? Better deal from the one in RS or local shops ? Because i may need 1 for hooking up the pi to my cheapass lcd monitor.

Not the cheapest but looks to be quite robust with ferrite bead.

Ebay HDMI-to-DVI cable

[Edit]
uh-oh. I just noticed the product description is wrong. Better check first before buying.

This post has been edited by totally_skint: Nov 13 2012, 09:58 AM

hi... where can i get one of these ???

Either RS or Element14
Check out if other LYN members are selling it out..

Good luck..

Dude, i think this is the power draw back from the hub to Pi.
It may cause damage in long term.
you may refer to this link http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8926

what language I need to learn to fully ultilize this computer?

hmm, what are you trying to do?

Raspberry pi's forum
Find interest in what others is doing.

http://www.raspberrypi.org/phpBB3/


learning programming?
Try the python.

If you want peruse http://www.themagpi.com/
Various issues of the magazine talks about various stuff.

Its all in English so you will need to learn English.


If you just want to tinker with stuff or electronics or programming... highly recommend reading the magpi magazine(free download) and go from there.