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by curiousengr
Sat Aug 25, 2012 1:43 pm
Forum: Other projects
Topic: usb fast/slow devices
Replies: 0
Views: 426

usb fast/slow devices

Just a note about mixing Fast (Disks) and Slow devices on the same USB Port Long time ago on a course I was told: If you put Keyboard, Mouse, trackpad on a usb port or on any Hub connected to that port the USB connection negotiation is going to set the connection speed to SLOW. To get the fastest US...
by curiousengr
Wed May 16, 2012 6:01 am
Forum: Other projects
Topic: All-in-one Pi Display...
Replies: 3
Views: 2726

Re: All-in-one Pi Display...

Hi, if your talking about mounting the Pi inside a working Monitor I'd be suprisied if there was any spare space to fit it.Commonly thinclient boxes are mounted on the back of Monitors to give this all-in-one appearance. The 'transformer' do you mean the AC Adaptor brick or are you attempting to tap...
by curiousengr
Sat May 05, 2012 6:08 pm
Forum: Troubleshooting
Topic: Ethernet Schematics 10 pin or 8 pin? [solved]
Replies: 2
Views: 1811

Re: Ethernet Schematics 10 pin or 8 pin? [solved]

<t>Just looking at the circuit schematics the transformer coupling tx has 3 connections rx has 3 connections that takes care of the top centre tap and bottom of each transformer on pins 1-6.<br/> <br/> Pin 7 & 8 shown not connected, then pin 9& 10 shown linked and grounded but internally cap...
by curiousengr
Wed May 02, 2012 9:52 pm
Forum: Troubleshooting
Topic: Ethernet Schematics 10 pin or 8 pin? [solved]
Replies: 2
Views: 1811

Re: Ethernet Schematics 10 pin or 8 pin? [solved]

<t>After all the discussion about magnetics for the RJ45 jack I was interested in the connections on the Pi board and possibly using a RJ45 stacked over USB pcb mount connector on a satelite board.<br/> <br/> I can see 10 pins connections on the Schematics but only 8 on the hi-res pictures of the ba...
by curiousengr
Sun Apr 01, 2012 9:46 pm
Forum: General discussion
Topic: RPi 2.0 and future hardware
Replies: 48
Views: 8914

Re: RPi 2.0 and future hardware

<t>From the way this conversation is going I suggest its not a new RasPi we need.<br/> <br/> The time to develop protype hardware software and test before production is a long time! 2 years ?<br/> <br/> Perhaps what would be an idea for Schools particularly is a docking station type device. A strip ...
by curiousengr
Sun Apr 01, 2012 9:07 pm
Forum: General discussion
Topic: VGA Support/Mod??
Replies: 22
Views: 4849

Re: VGA Support/Mod??

<t>If you have a monitor that has DVI-D you don't need an adapter only a hdmi to dvi cable.As DVI monitors have both Digital inputs and some pins reserved forAnalogue .<br/> <br/> VGA output to DVI monitor cable will work through the analogue pins on the monitor input (usually monitors with DVI have...
by curiousengr
Sun Apr 01, 2012 8:20 pm
Forum: Other projects
Topic: Pi laptop in a box
Replies: 24
Views: 10315

Re: Pi laptop in a box

<t>you can get 12v to 5v DC to DC converters from ebay -small cheap and can power up to 3A. The amps will take care of themselves as long as the voltage is maintained at a regulated 5volt so long as the power in is sufficient to supply the amps there no problem.if you try to supply more than 5volts ...
by curiousengr
Mon Mar 26, 2012 9:09 pm
Forum: Staffroom, classroom and projects
Topic: Why Pi when you can just run Linux?
Replies: 98
Views: 21289

Re: Why Pi when you can just run Linux?

<t>As an Engineer I see educational establishments at all levels and I must just point out the differences in the DVI available in those monitors I see that have SVGA and DVI inputs. Unfortunately there is several versions of DVI Digital and Analogue the monitors that also have DVI is the analogue t...
by curiousengr
Sun Mar 25, 2012 8:41 pm
Forum: Off topic discussion
Topic: USB-HUB PowerSupply...
Replies: 13
Views: 4095

Re: USB-HUB PowerSupply...

<t>Abishur said: <br/> <br/> <br/> yeah, in theory that should work just fine<br/> <br/> <br/> There seems to be some basic misunderstanding about the power used/supply of the Pi usb port.The RasPi is supplied with 5V through the mini usb power plug the actual current the RasPi takes from that depen...
by curiousengr
Sun Mar 25, 2012 8:20 pm
Forum: Off topic discussion
Topic: USB-HUB PowerSupply...
Replies: 13
Views: 4095

Re: USB-HUB PowerSupply...

<r>Karsten said: <br/> <br/> <br/> Hi @all,<br/> <br/> <URL url="http://www.raspberrypi.org/archives/837">http://www.raspberrypi.org/archives/837</URL><br/> <br/> At the end, the answer of a question:<br/> <br/> "…What about a powered hub – to power the Pi and bigger USB devices."<br/> <br/> So I th...
by curiousengr
Thu Mar 22, 2012 5:48 pm
Forum: General discussion
Topic: About power supply and peripherics
Replies: 22
Views: 4705

Re: About power supply and peripherics

<t>Most laptops/desktops would be able to supply the full rated 500mA as would a powered hub (for at least 1 port).<br/> <br/> Any External USB Hard disk that has only 1 USB connection would be expected to power up within that limit- so no problem if you use a powered hub.<br/> <br/> No need to hack...
by curiousengr
Thu Mar 22, 2012 5:09 pm
Forum: Other projects
Topic: Suggestion: Tiny PCB for DC-anything to 5 V DC
Replies: 50
Views: 15020

Re: Suggestion: Tiny PCB for DC-anything to 5 V DC

<t>Sorry to butt in guys, just liking this techy stuff- finally seems like someones getting real on this forum.<br/> <br/> I will be using a usb power adapter for RasPi when I'm at home but am looking for something for when it is possible to go portable - (display's the problem).<br/> <br/> i have u...
by curiousengr
Thu Mar 22, 2012 11:32 am
Forum: Other projects
Topic: Portable movie player and hotel PC
Replies: 3
Views: 1557

Re: Portable movie player and hotel PC

<t>I like the idea of using the rechargeable unit for powering the RasPi but I suggest that using a resistor to drop the power is definitely risky! at least use a 5V voltage regulator.<br/> <br/> The power input of the RasPi is via a mini USB connector so the smaller versions of the power unit shoul...
by curiousengr
Thu Mar 22, 2012 11:11 am
Forum: Other projects
Topic: STICKY: The projects list. Look here for some ideas.
Replies: 233
Views: 388960

Re: The projects list. Look here for some ideas.

<t>Initially I am looking for something I need rather than Pie in the Sky project, when I have visitors (family) they all want to use the internet at the same time.<br/> <br/> My Desktop Laptop and Netbook are all connecting via my Wifi router at the same time and still I need more!.<br/> <br/> If I...
by curiousengr
Thu Mar 22, 2012 10:47 am
Forum: Other projects
Topic: Possible solution for the lack of VGA output.
Replies: 8
Views: 5485

Re: Possible solution for the lack of VGA output.

<t>I have been collecting parts to connect to my Raspi (when I get it!) and have now got a Composite to VGA adaptor ,a small unit for around £15 (ebay). I assume that getting the output to composite is fairly easy. I need to keep the costs down or else I could just get a linux netbook with all the e...
by curiousengr
Thu Mar 15, 2012 2:31 pm
Forum: General discussion
Topic: Raspberry Pi Foundation | Raspberry Pi Hardware
Replies: 21
Views: 3049

Re: Raspberry Pi Foundation | Raspberry Pi Hardware

<t>While I think the Raspi is a great project and definitely something I want, for me it a fun project and maybe I will learn some stuff along the way.<br/> <br/> As a hardware project it is just the sort of thing I have been waiting for as I have found it difficult and potentially very expensive to...
by curiousengr
Wed Mar 14, 2012 11:02 pm
Forum: Staffroom, classroom and projects
Topic: Getting Teachers Interested in RasPi
Replies: 69
Views: 12033

Re: Getting Teachers Interested in RasPi

<t>The question I have about this topic is why would teachers want to get interested in RasPi.<br/> <br/> Sure C++ is going to be a basis of a lot of software for a long time with Linux Android and Java but it takes 5 years for the educational establishment to catch up (teachers have to learn the su...
by curiousengr
Sun Mar 11, 2012 9:11 am
Forum: General discussion
Topic: chasis mounted extentions.
Replies: 17
Views: 4311

Re: chasis mounted extentions.

<t>good luck with the HDMI solution however the HDMI-DVI cable listed doesn't look right , HDMI and DVI are'nt compatible , some laptops use the HDMI connector for external video but aren't true hdmi just DVI version which also includes pins for VGA output.For HDMI to DVI (svga) your'e going to need...
by curiousengr
Sun Mar 11, 2012 8:06 am
Forum: General discussion
Topic: Cybersitters
Replies: 2
Views: 767

Re: Cybersitters

<r>Hi guys,<br/> <br/> seems we have a new website <URL url="http://www.raspberrypi.co.uk">http://www.raspberrypi.co.uk</URL> that is NOT raspberry pi org looks like the cybersitters are gathering to take any web sites that sound like they are part of the original group but in fact have no connectio...
by curiousengr
Sat Mar 10, 2012 9:06 am
Forum: General discussion
Topic: real world use in Educational establishments
Replies: 8
Views: 1702

Re: real world use in Educational establishments

<t>How does the RasPi.org imagine the final hardware in schools and colleges.<br/> <br/> so far what I have seen is very interesting to the home/hobbyist/self learner.<br/> <br/> I see and repair  PC and Server equiptment in all levels of schools and university of which is 99% SVGA/DVI Monitors.The ...

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