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by drgeoff
Tue Mar 06, 2012 10:39 pm
Forum: General discussion
Topic: What if the Power Input is not exactly 5v?
Replies: 15
Views: 3692

Re: What if the Power Input is not exactly 5v?

<t>nullstring said: <br/> <br/> <br/> I am actually curious about what will happen when we feed it extra voltage.<br/> <br/> Hopefully a protection circuit will stop it getting fried, right?<br/> <br/> <br/> There is a regulator between the 5 volt input and the Broadcom SoC plus PoP RAM combination....
by drgeoff
Tue Mar 06, 2012 10:20 pm
Forum: General discussion
Topic: Possible higher bitrate DAC in the future?
Replies: 17
Views: 6063

Re: Possible higher bitrate DAC in the future?

<t>Gert said: <br/> <br/> <br/> Oh, it is definitely good enough for earphones. It is not the 'CD quality audio' which at some time was promised. The initial calculations promised 'CD quality audio' but the persons involved did not take into account the fact that the output drivers where just two of...
by drgeoff
Tue Mar 06, 2012 10:05 pm
Forum: General discussion
Topic: What if the Power Input is not exactly 5v?
Replies: 15
Views: 3692

Re: What if the Power Input is not exactly 5v?

<r>There is a good chance that the RP can be powered directly from 4 rechargeable NiMH cells in series.  I'd rate the chance with alkalines somewhat lower.<br/> <br/> For best results, a higher voltage feeding a switching regulator is the way to go.  I have already ordered and received two of these ...
by drgeoff
Tue Mar 06, 2012 9:52 pm
Forum: General discussion
Topic: Design Changes
Replies: 17
Views: 3057

Re: Design Changes

texy said:


Is the bootloader 'firmware' as you describe though, ie programmed into ROM?

T.



An alternative being ... ?
by drgeoff
Tue Mar 06, 2012 9:36 pm
Forum: General discussion
Topic: Design Changes
Replies: 17
Views: 3057

Re: Design Changes

<r>nmcc said: <br/> <br/> <br/> <URL url="http://www.google.co.uk/search.....:+firmwareNoun">http://www.google.co.uk/search.....:+firmwareNoun</URL>:<br/> Permanent software programmed into a read-only memory. Poe-tay-toe / Poe-tar-toe<br/> <br/> <br/> Many devices have their firmware in flash memor...
by drgeoff
Tue Mar 06, 2012 9:19 pm
Forum: General discussion
Topic: Cheap but crucial Model A feature request! Read this.
Replies: 30
Views: 12841

Re: Cheap but crucial Model A feature request! Read this.

<t>nullstring said: <br/> <br/> <br/> If I understand this correctly, the 5th pin is used to differentiate between client and host mode.<br/> <br/> You could easily just hookup a 5pin usb port, and put the extra pin to a GPIO, couldn't you? (I guess you just want to avoid some extra hookup wire, etc...
by drgeoff
Tue Mar 06, 2012 2:23 pm
Forum: General discussion
Topic: Licensed Manufacture
Replies: 26
Views: 3407

Re: Licensed Manufacture

<t>Grumpyoldgit said: <br/> <br/> <br/> It's quite a history lesson. There's reference in the Acorn wiki to a TV drama about the Sinclair / Acorn relationship. I'll have to track it down.<br/> <br/> <br/> The Micro Men.  Has been shown at least twice on BBC.  Well worth the hour watching.  I had a s...
by drgeoff
Mon Mar 05, 2012 8:20 pm
Forum: General discussion
Topic: Suitable powered USB hubs
Replies: 31
Views: 8440

Re: Suitable powered USB hubs

Hubs are OS agnostic.

(I have ordered the same item from another ebay supplier for 51p less )
by drgeoff
Mon Mar 05, 2012 8:05 pm
Forum: Off topic discussion
Topic: No confirmation email from RS
Replies: 19
Views: 3934

Re: No confirmation email from RS

<t>marc.knuckle said: <br/> <br/> <br/> blimey, how can it take 2 months+ for us to get them even though we registered within a couple of hours of the earliest time we could have!!<br/> <br/> <br/> If you knew anything about supply chains and manufacturing for the numbers involved you wouldn't ask t...
by drgeoff
Mon Mar 05, 2012 7:26 pm
Forum: General discussion
Topic: mini usb wireless Adapter
Replies: 6
Views: 1767

Re: mini usb wireless Adapter

<t>bc320 said: <br/> <br/> <br/> Would I be better off setting an old wireless as a repeater and attaching it via the ethrenet port?<br/> <br/> <br/> Yes, if you can configure your old Wi-Fi device as a client adaptor or client bridge or game adaptor (the terms vary) and connect to the ethernet port...
by drgeoff
Mon Mar 05, 2012 7:08 pm
Forum: General discussion
Topic: Which Power Supply?
Replies: 101
Views: 30820

Re: Which Power Supply?

<t>ruud said: <br/> <br/> <br/> Alex said: <br/> <br/> <br/> But there are good options, like this one: 5V,1.2A whit a usb/micro usb cable.<br/> <br/> <br/> Or this one (5V, 1.2A, microUSB connector), which doesn't require a separate USB/micro-USB cable.<br/> <br/> <br/> Be aware that if you are pla...
by drgeoff
Mon Mar 05, 2012 6:43 pm
Forum: General discussion
Topic: Which Power Supply?
Replies: 101
Views: 30820

Re: Which Power Supply?

<t>Sorin said: <br/> <br/> <br/> in Romania is mAh <br/> <br/> <br/> Either you are guilty of false representation of the facts or Romania is out of step with the rest of the world  :-(<br/> <br/> Current is amps = A.  milliamp = mA = 1A/1000<br/> <br/> Capacity Ah is current (A) multiplied by time ...
by drgeoff
Mon Mar 05, 2012 6:22 pm
Forum: General discussion
Topic: Which Power Supply?
Replies: 101
Views: 30820

Re: Which Power Supply?

Sorin said:


Isn`t that usb hub delivering only 500 mAh per usb port ? Model B needs a minimum of 700 mAh to power it.


Even if it is only delivering 500 mA (NB NOT mAh) per port a swift attack with a soldering iron will soon sort that out.
by drgeoff
Mon Mar 05, 2012 5:52 pm
Forum: General discussion
Topic: Which Power Supply?
Replies: 101
Views: 30820

Re: Which Power Supply?

I ordered ebay.uk item 250992988193.  £3.48 delivered for PSU with UK 3 pin plug and 7 port USB hub is worth a try.
by drgeoff
Mon Mar 05, 2012 5:23 pm
Forum: General discussion
Topic: Which Power Supply?
Replies: 101
Views: 30820

Re: Which Power Supply?

If you are in the UK and within range of a Poundland shop have a look for a pink/white/clear bag marked Signalex Retractable USB cable for Blackberry, Kindle.
by drgeoff
Mon Mar 05, 2012 2:11 pm
Forum: General discussion
Topic: Video Adapter
Replies: 39
Views: 6912

Re: Video Adapter

<t>RaTTuS said: <br/> <br/> <br/> there is no 2nd batch – it is now continuous production<br/> <br/> <br/> If I was a betting man I wouldn't put any money either way on the literal meaning of "now" in that sentence.<br/> <br/> Also, RS and Farnell are not "real manufacturers".  They are distributors...
by drgeoff
Mon Mar 05, 2012 1:25 pm
Forum: General discussion
Topic: GPU data (CSI-2 in particular)
Replies: 7
Views: 1861

Re: GPU data (CSI-2 in particular)

It's Broadcom's ball so they get to set the rules.
by drgeoff
Mon Mar 05, 2012 9:34 am
Forum: Off topic discussion
Topic: Farnell - Rip Off Britain is alive and well!!!!
Replies: 10
Views: 2742

Re: Farnell - Rip Off Britain is alive and well!!!!

You don't say where delivery is to but FWIW my order on the UK site for delivery to a UK mainland address is priced at £24.55 plus free delivery plus £4.91 VAT making a total of £29.46.
by drgeoff
Mon Mar 05, 2012 8:57 am
Forum: General discussion
Topic: Windows apps for Pi
Replies: 12
Views: 4650

Re: Windows apps for Pi

<t>Gert said: <br/> <br/> <br/> When reading the subject I was thinking of other type of 'apps'.<br/> <br/> I could do with an app which copies data from a user /home/xxx directory in and out of the SD_card. Now I have to copy any data through the /boot section. That will also be useful for the mode...
by drgeoff
Mon Mar 05, 2012 7:13 am
Forum: General discussion
Topic: Video Adapter
Replies: 39
Views: 6912

Re: Video Adapter

<r>Nexy said: <br/> <br/> <br/> HienoMies said: <br/> <br/> <br/> I ordered this one few days a go. Will it work with Raspi, dunno, but price was right for me ($5.29).<br/> <br/> <URL url="http://www.buyincoins.com/deta.....t-323.html">http://www.buyincoins.com/deta.....t-323.html</URL><br/> <br/> E...
by drgeoff
Sun Mar 04, 2012 11:11 am
Forum: Off topic discussion
Topic: RS Components
Replies: 175
Views: 32990

Re: RS Components

<r>spurious said: <br/> <br/> <br/> Received: from ... Sat, 3 Mar 2012 23:31:47 +0000...Content-Type: multipart/mixed; boundary="----msg_border_Vp8O2kiy6G"<br/> Date: Sat, 3 Mar 2012 15:29:23 -0800<br/> From: RS Online <<EMAIL email="[email protected].rs-email.com">[email protected].rs-email.com</EMAIL>><br/> R...
by drgeoff
Sun Mar 04, 2012 10:44 am
Forum: General discussion
Topic: Where have the 10,000 first batch gone
Replies: 10
Views: 2259

Re: Where have the 10,000 first batch gone

I hope it is just a case of me not spotting the relevant post(s), but I haven't seen any confirmation that the 10,000 batch actually passed testing.
by drgeoff
Sun Mar 04, 2012 10:32 am
Forum: General discussion
Topic: Outbound Calls with RPi VoIP Server?
Replies: 12
Views: 4706

Re: Outbound Calls with RPi VoIP Server?

Duplicate deleted.
by drgeoff
Sun Mar 04, 2012 10:29 am
Forum: General discussion
Topic: Outbound Calls with RPi VoIP Server?
Replies: 12
Views: 4706

Re: Outbound Calls with RPi VoIP Server?

<t>twig123 said: <br/> <br/> <br/> If you got GV working on the PI, how would you connect it to a standard POTS phone? Would you need to add a modem to the PI, or some kind of VOIP converter??<br/> <br/> <br/> I believe GV is SIP-based.  Somebody will shout if I'm wrong.  An ATA "converts" a POTS ph...
by drgeoff
Sun Mar 04, 2012 10:10 am
Forum: Off topic discussion
Topic: RS Components
Replies: 175
Views: 32990

Re: RS Components

<t>I had an email (in English!) at 23:29 03 March from RS confirming one of my two registration requests. It is devoid of any serial number or time-stamp of the registration so I have no idea where in the queue it is.  I wonder if they have a means of weeding out multiple registrations.  The end of ...

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