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recycling smart-phone chargers
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Thomas  
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 More options Nov 14 2012, 4:18 pm
From: Thomas <thomas.sprinkme...@gmail.com>
Date: Thu, 15 Nov 2012 07:48:07 +1030
Local: Wed, Nov 14 2012 4:18 pm
Subject: recycling smart-phone chargers
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Hi All,

I need Raspberry Pi power supplies for a little project:
     http://ogpc.com.au/wiki/ShuttlePi/Hardware

They're commonly sold as "smart-phone chargers", 5V @ 700mA+, micro-B
USB connector.

If you have any spares (and don't need them for your own project to take
over the world, Muahahahaha!) I would love to take them off your hands.

Thomas


 
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Damien P  
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 More options Nov 15 2012, 6:54 am
From: Damien P <athe...@gmail.com>
Date: Thu, 15 Nov 2012 03:54:33 -0800 (PST)
Local: Thurs, Nov 15 2012 6:54 am
Subject: Re: recycling smart-phone chargers
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This is completely not what you want, but if anyone wants a 5V power
adapter, the Reject Shop has a gadget with a male and female 240V plugs and
a USB-A socket for 5V for $6.  I'd hope what they sell isn't too dodgy.


 
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Thomas Sprinkmeier  
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 More options Nov 19 2012, 8:35 pm
From: Thomas Sprinkmeier <thomas.sprinkme...@gmail.com>
Date: Tue, 20 Nov 2012 12:05:57 +1030
Local: Mon, Nov 19 2012 8:35 pm
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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On 15 November 2012 22:24, Damien P <athe...@gmail.com> wrote:

> This is completely not what you want, but if anyone wants a 5V power
> adapter, the Reject Shop has a gadget with a male and female 240V plugs and
> a USB-A socket for 5V for $6.  I'd hope what they sell isn't too dodgy.

I like the look of these:

 http://littlebirdelectronics.com/products/raspberry-pi-power-supply

2* USB 5V@1A outputs, $18

I'm $114 short of free shipping, anyone else want anything from LittleBird?

Thomas


 
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Ken  
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 More options Nov 19 2012, 8:39 pm
From: Ken <k...@waggies.net>
Date: Tue, 20 Nov 2012 12:09:23 +1030
Local: Mon, Nov 19 2012 8:39 pm
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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Just being cautious... where did you read 2 x 1A output?

On 20 November 2012 12:05, Thomas Sprinkmeier
<thomas.sprinkme...@gmail.com>wrote:


 
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Thomas Sprinkmeier  
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 More options Nov 19 2012, 8:42 pm
From: Thomas Sprinkmeier <thomas.sprinkme...@gmail.com>
Date: Tue, 20 Nov 2012 12:12:51 +1030
Local: Mon, Nov 19 2012 8:42 pm
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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On 20 November 2012 12:09, Ken <k...@waggies.net> wrote:

> Just being cautious... where did you read 2 x 1A output?

USB socket output: 5V at 1A
socket, singular, implying "each".

but then, below it says 5V @ 1A, so you're probably right...

worst case it has 1A for both sockets, meaning raspi on one (700mA) and
300mA left for an LED christmas tree or soemthing.

Thomas


 
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Thomas Sprinkmeier  
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 More options Nov 21 2012, 7:52 pm
From: Thomas Sprinkmeier <thomas.sprinkme...@gmail.com>
Date: Thu, 22 Nov 2012 11:22:52 +1030
Local: Wed, Nov 21 2012 7:52 pm
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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On 20 November 2012 12:09, Ken <k...@waggies.net> wrote:

> Just being cautious... where did you read 2 x 1A output?

Just heard back from John Boxall j...@littlebirdelectronics.com, according
to the supplier it is 1A per port. Woot.

I'll get one or two to play with, anyone else want anything from LB?

Thomas

--
Quis custodiet ipsos custodes?

 
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damie...@gmail.com  
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 More options Nov 23 2012, 6:30 am
From: damie...@gmail.com
Date: Fri, 23 Nov 2012 03:30:50 -0800 (PST)
Local: Fri, Nov 23 2012 6:30 am
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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I didn't check the power rating on the Reject Shop one.  Would the power supplies on powered hubs be strong enough?

RS have some power packs for about $12, but they have European plugs so you'll need some $1 adapters from ebay.

I don't know whether hardware stores or department stores would have 240V plugs with USB ports.


 
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Sam Birbeck  
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 More options Nov 23 2012, 8:31 am
From: Sam Birbeck <s...@griml.in>
Date: Sat, 24 Nov 2012 00:01:07 +1030
Local: Fri, Nov 23 2012 8:31 am
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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I've seen them in Bunnings but rated about .5A iirc
On Nov 23, 2012 11:10 PM, <damie...@gmail.com> wrote:


 
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Tamsyn Michael  
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 More options Nov 23 2012, 8:40 am
From: Tamsyn Michael <tamsyn.j.mich...@gmail.com>
Date: Sat, 24 Nov 2012 00:09:59 +1030
Local: Fri, Nov 23 2012 8:39 am
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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I got one from the reject shop for cheap, not sure if it's the same one,
but it has a warranty and serves up 1A, so should be good.


 
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Thomas  
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 More options Nov 23 2012, 8:40 am
From: Thomas <thomas.sprinkme...@gmail.com>
Date: Sat, 24 Nov 2012 00:10:23 +1030
Local: Fri, Nov 23 2012 8:40 am
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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On 23/11/12 22:00, damie...@gmail.com wrote:

> I didn't check the power rating on the Reject Shop one.  Would the power supplies on powered hubs be strong enough?

Depends on the hub.
Spec for USB2 is up to 500mA per port if you ask nicely (i.e. a really
good USB hub won't give you 500mA until you ask for it, so a cheaper one
might be better).
https://en.wikipedia.org/wiki/Universal_Serial_Bus#Power

The RasPi needs at least 700.

'dumb' smart-phone chargers usually supply 1A or more, and without the
pesky protocol required to get it.

> RS have some power packs for about $12, but they have European plugs so you'll need some $1 adapters from ebay.

> I don't know whether hardware stores or department stores would have 240V plugs with USB ports.

I'm worried 'bargain basement' PSUs (and/or mains adapters) as these are
destined for schools (and homes).

I've got 2 of the $18 LittleBird ones on the way.
Apparently they can supply 1A each on both ports, so at a pinch I could
run 2 RasPis each (not happy with the sharing option, I want each
student to be able to take home a working unit).
If they work I'm  happy to use them.

Thomas


 
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Thomas Sprinkmeier  
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 More options Dec 2 2012, 11:53 pm
From: Thomas Sprinkmeier <thomas.sprinkme...@gmail.com>
Date: Mon, 3 Dec 2012 15:23:11 +1030
Local: Sun, Dec 2 2012 11:53 pm
Subject: Re: [HACK-ADL] Re: recycling smart-phone chargers
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On 22 November 2012 11:22, Thomas Sprinkmeier
<thomas.sprinkme...@gmail.com>wrote:

> On 20 November 2012 12:09, Ken <k...@waggies.net> wrote:

>> Just being cautious... where did you read 2 x 1A output?

> Just heard back from John Boxall j...@littlebirdelectronics.com,
> according to the supplier it is 1A per port. Woot.

> I'll get one or two to play with, anyone else want anything from LB?

Just got them, packaging rather unambiguously states "1A combined".

Hoping against common sense I've asked for confirmation...

Thomas


 
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