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Newsgroups: comp.sys.acorn.hardware
From: Michael Emerton <MichaelREmer...@hotmail.com>
Date: Thu, 22 Feb 2007 12:01:45 GMT
Local: Thurs 22 Feb 2007 12:01
Subject: RISC PC Powersupply for a car
Does anyone know if there is a power supply which can power an SA RiscPC?
I am intending to convert an SA RiscPC into a car entertainment unit. I have started writing a piece of software with a decent GUI for use but I need the a PSU for a 12 DC Source? Cheers in advance! You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: Jules <julesrichardso...@remove.this.yahoo.co.uk>
Date: Thu, 22 Feb 2007 10:08:48 -0600
Local: Thurs 22 Feb 2007 16:08
Subject: Re: RISC PC Powersupply for a car
On Thu, 22 Feb 2007 12:01:45 +0000, Michael Emerton wrote: Obvious question, but how do you intend to make the device usable (and > I have started writing a piece of software with a decent GUI for use > with an LCD which sits in place of the usual Head unit (I have a remote > Keyboard and mouse to use with this). safe) at road speeds? Or is the intention to only control it whilst stopped? Having to use a full keyboard whilst driving sounds like a good way of ending up dead :( Seems to be one of those problems with having lots of music instantly on > but I need the a PSU for a 12 DC Source? Initially a mains inverter may be an option, depending on how much power you need. I know Wal-Mart in the US do (or did) a 75W one for something like the equivalent of £10. Tesco etc. may offer something similar. Perhaps easier than trying to get regulated 12VDC out of something that might be anywhere between 11-14VDC and prone to all sorts of spikes. cheers Jules You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: Michael Emerton <MichaelREmer...@hotmail.com>
Date: Thu, 22 Feb 2007 16:55:01 GMT
Local: Thurs 22 Feb 2007 16:55
Subject: Re: RISC PC Powersupply for a car
<snip>
> Obvious question, but how do you intend to make the device usable (and Ah! its called a modified keyboard, (and full one) as a uni project, we > safe) at road speeds? Or is the intention to only control it whilst > stopped? Having to use a full keyboard whilst driving sounds like a good > way of ending up dead :( > Seems to be one of those problems with having lots of music instantly on managed to munge a keyboard, into some touch-plates which you could attach to the steering wheel! so stuff like Left and Right arrow keys = previous / next tracks, up/down = volume and Space as Pause/Start They attempted to use Windows, but on average by the time they booted it Hence RISC OS, oh and the fact I have 3 SAs laying around :@P The full (wireless) keyboard was for searching / setting up playlists Tis a shame it cannot play video well, as it would also be used for >> but I need the a PSU for a 12 DC Source? Any idea of model numbers? > Initially a mains inverter may be an option, depending on how much power + is there a wiring diagram of the RPC power input to the MB? I would Cheers for the advice so far, am looking! You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: Jules <julesrichardso...@remove.this.yahoo.co.uk>
Date: Thu, 22 Feb 2007 12:04:43 -0600
Local: Thurs 22 Feb 2007 18:04
Subject: Re: RISC PC Powersupply for a car
On Thu, 22 Feb 2007 16:55:01 +0000, Michael Emerton wrote: Aha - interesting. I had a plan once to do this kind of thing, but > <snip> >> <ditto> > Ah! its called a modified keyboard, (and full one) as a uni project, we couldn't figure out the UI side of it properly - mainly because I tend to choose my music according to mood, and even with some sort of collection-based system I still couldn't work out a way of managing what might be hundreds of different collections whilst on the move. Maybe that's atypical though and most people have no real preference as to what song / genre comes up next. > They attempted to use Windows, but on average by the time they booted it :-) > up, short journeys were over! I was hacking around with a Linux system and diskless booting - I suppose Eventually that morphed into using the guts of a laptop and a power I seem to recall pondering on an RPC as an option, but I've got zero clue >>> but I need the a PSU for a 12 DC Source? I suspect it may have been replaced by this: >> Initially a mains inverter may be an option, depending on how much > Any idea of model numbers? http://www.walmart.com/catalog/product.do?product_id=4891078 ... which works out at about a tenner and gives you 100W at 110VAC. Unless Maybe the company making the above also produces equivalents for the UK I'm in the US right now and might be heading to WalMart this evening, so cheers Jules You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: Stuart <SW_NOS...@dsl.pipex.com>
Date: Thu, 22 Feb 2007 19:22:01 +0100
Local: Thurs 22 Feb 2007 18:22
Subject: Re: RISC PC Powersupply for a car
In article <pan.2007.02.22.18.04.42.458...@remove.this.yahoo.co.uk>,
Jules <julesrichardso...@remove.this.yahoo.co.uk> wrote: > I suspect it may have been replaced by this: I'd been thinking of getting one of these: > http://www.walmart.com/catalog/product.do?product_id=4891078 > ... which works out at about a tenner and gives you 100W at 110VAC. > Unless the SARPC PSU is jumper (or automatically) selectable for 110V > operation though you'll need 220VAC for a UK PSU (and I suppose a > similarly-sized inverter will give you 50W to play with rather than 100W) http://cpc.farnell.com/jsp/search2/browse.jsp?N=500009+401+411&Ntk=ge... Compressor, jump starter, 100W inverter... In case that doesn't work search for CP0434003 at www.cpc.co.uk but simple inverters are available, just go to home page (above) and Stuart -- From is valid but subject to change without notice if it gets spammed. For Barn dances and folk evenings in the Coventry and Warwickshire area You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: druck <n...@druck.freeuk.com>
Date: Thu, 22 Feb 2007 18:17:14 GMT
Local: Thurs 22 Feb 2007 18:17
Subject: Re: RISC PC Powersupply for a car
On 22 Feb 2007 Michael Emerton <MichaelREmer...@hotmail.com> wrote:
> Does anyone know if there is a power supply which can power an SA RiscPC? A Risc PC? In a car or hummvee? Why not an A9, its ideally sized for such an > I am intending to convert an SA RiscPC into a car entertainment unit. application. ---druck -- You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: druck <n...@druck.freeuk.com>
Date: Thu, 22 Feb 2007 19:03:14 GMT
Local: Thurs 22 Feb 2007 19:03
Subject: Re: RISC PC Powersupply for a car
On 22 Feb 2007 Paul Vigay <invalid-email-addr...@invalid-domain.co.uk> wrote:
> In article <bc3244b94e.dr...@druck.freeuk.net>, But you'll be laughed at for using something the size of a Risc PC. > druck <n...@druck.freeuk.com> wrote: > > A Risc PC? In a car or hummvee? Why not an A9, its ideally sized for such > > an application. > If, as he said, he's got 3 RPCs lying around then it might work out ---druck -- You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: Michael Emerton <MichaelREmer...@hotmail.com>
Date: Thu, 22 Feb 2007 19:42:49 GMT
Local: Thurs 22 Feb 2007 19:42
Subject: Re: RISC PC Powersupply for a car
druck wrote: at the end of the day, I have sourced a case, and it's functional..hence > On 22 Feb 2007 Paul Vigay <invalid-email-addr...@invalid-domain.co.uk> wrote: >> In article <bc3244b94e.dr...@druck.freeuk.net>, >> druck <n...@druck.freeuk.com> wrote: >>> A Risc PC? In a car or hummvee? Why not an A9, its ideally sized for such >>> an application. >> If, as he said, he's got 3 RPCs lying around then it might work out >> slightly cheaper than an A9.... > But you'll be laughed at for using something the size of a Risc PC. > ---druck why I have a Peugeot 106 Diesel! Never conformed to fashion! You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: News poster <mistymorni...@casema.nl>
Date: Thu, 22 Feb 2007 20:04:19 +0100
Local: Thurs 22 Feb 2007 19:04
Subject: Re: RISC PC Powersupply for a car
In message <bc3244b94e.dr...@druck.freeuk.net>
druck <n...@druck.freeuk.com> wrote: > On 22 Feb 2007 Michael Emerton <MichaelREmer...@hotmail.com> wrote: 1) A RiscPC you already have is free, you don't need to worry about > > Does anyone know if there is a power supply which can power an SA RiscPC? > > I am intending to convert an SA RiscPC into a car entertainment unit. > A Risc PC? In a car or hummvee? Why not an A9, its ideally sized for such an warrantly claims should you break it? 2) Still apparently some stability and support issues with the A9home OS 3) Fitting a larger hard drive in a RiscPC is easier than fitting one in The A9home does have a size advantage and is already neatly packaged up. On the other hand using a RiscPC as a prototype makes a lot of sense. If Out of curiousuty is there an approved PSU that allows the A9home to run Cheers You must Sign in before you can post messages.
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Newsgroups: comp.sys.acorn.hardware
From: Stuart <SW_NOS...@dsl.pipex.com>
Date: Fri, 23 Feb 2007 00:07:37 +0100
Local: Thurs 22 Feb 2007 23:07
Subject: Re: RISC PC Powersupply for a car
In article <4eb9592fafinvalid-email-addr...@invalid-domain.co.uk>,
Paul Vigay <invalid-email-addr...@invalid-domain.co.uk> wrote: > Or even off six volts - I'm thinking of four AA batteries (or possibly 3 or Not a good idea to parallel batteries, you can get circulating currents > 4 sets of four in parallel) and they are unlikely to share the load equally. You can get round the first problem by paralleling each set through a diode (since you have 6V and want 5V this is not a bad thing as it will drop the voltage) but not the latter -- From is valid but subject to change without notice if it gets spammed. For Barn dances and folk evenings in the Coventry and Warwickshire area You must Sign in before you can post messages.
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