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by Wheel_nut
Thu Aug 18, 2016 1:50 pm
Forum: Beginners
Topic: Raspberry Pi 2 - Analogue Audio Output
Replies: 0
Views: 357

Raspberry Pi 2 - Analogue Audio Output

I am using my Raspberry Pi 2 with an HDMI Monitor without Audio. In LibreELEC, I need to enable the Audio Output on the 4-Pole (TRRS) Jack so that I can feed it to external amplified Speakers. EDIT: I found the answer to this: It is in System/Settings/System/Audio Output and select HDMI and Analogue...
by Wheel_nut
Mon Dec 28, 2015 3:57 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2 HDMI output flashes intermittently
Replies: 2
Views: 389

Raspberry Pi 2 HDMI output flashes intermittently

I was given a Raspberry Pi 2 Model B as a present and am having problems with the HDMI output flashing off and on about every 2 seconds. The Pi 2 boots up just fine using Raspbian (installed via NOOBS) and the text screen scrolls just fine until the GUI Screen appears .... then the screen flashes of...
by Wheel_nut
Tue Jan 06, 2015 8:57 pm
Forum: Troubleshooting
Topic: NO COMPOSITE VIDEO, need help!
Replies: 68
Views: 54400

Re: NO COMPOSITE VIDEO, need help!

Using the information gleaned from this thread, I am trying to edit the config.txt file to allow me to switch monitors. However, the file has protected access and will not let me save the edited file. In fact, the Folder seems to be protected because I cannot even save a copy of the original config....
by Wheel_nut
Tue Nov 04, 2014 6:41 pm
Forum: Beginners
Topic: New releases of NOOBS & Raspbian
Replies: 44
Views: 32465

Re: New releases of NOOBS & Raspbian

This is a plea for a simple on-liner to be added to the NOOBS Setup page to alert the user to the CHANGE in the distro with Version 1.3.10 which only distributes Raspbian in the Download. Under the Header First Boot between instruction 1 and 2, it should say "If you want to install other Operating S...
by Wheel_nut
Thu Mar 07, 2013 9:34 pm
Forum: Beginners
Topic: "Overvolt" and power supplies
Replies: 10
Views: 8871

Re: "Overvolt" and power supplies

No. In the context of Overclocking, overvolting refers to raising the ON-CHIP generated voltage driving the System-on Chip Processor. The 5V input to the RPi is stabilised at 3.3V on the Board and this lower voltage drives everything on the SoC. Other voltages may be derived on the SoC and the Proce...
by Wheel_nut
Wed Mar 06, 2013 6:07 pm
Forum: Beginners
Topic: How long should a RPi Take to Boot from fresh?
Replies: 7
Views: 2150

Re: How long should a RPi Take to Boot from fresh?

Boot time is very dependent on the speed rating and performance of the DS Card you are using. A Class 10 Card is MUCH faster than a Class 4 Card.
by Wheel_nut
Sat Feb 16, 2013 12:27 am
Forum: Beginners
Topic: Avoiding Powercuts
Replies: 9
Views: 1022

Re: Avoiding Powercuts

No your maths is seriously flawed. The energy stored in a Capacitor W = CV^2 so the voltage across the capacitor will decay rapidly as power is drawn from it. The RPi needs >4.75V to operate and therefore its operation will becom unprecictable below this voltage. In contrast, an LED will operate wit...
by Wheel_nut
Fri Feb 01, 2013 6:29 pm
Forum: Beginners
Topic: USB Port backfeed power?
Replies: 1
Views: 690

Re: USB Port backfeed power?

Yes. This is the preferred means of powering the RPi as it circumvents the F3 Polyfuse problem.
by Wheel_nut
Mon Jan 14, 2013 9:37 pm
Forum: Beginners
Topic: Reclaim SD Card
Replies: 5
Views: 1568

Re: Reclaim SD Card

The easist way is to stick the card in a Camera and Format it.
by Wheel_nut
Sun Jan 13, 2013 3:27 pm
Forum: Beginners
Topic: PSU and SD card for power supply for model b raspberry pi
Replies: 1
Views: 397

Re: PSU and SD card for power supply for model b raspberry p

Yes and Yes.

Make sure that you use a good quality USB A to MicroUSB cable if you are powering the RPi through the MicroUSB port. Many cheap cables are fakes and have very high resistance causing a large Voltage drop and consequent problems.
by Wheel_nut
Sat Jan 12, 2013 5:02 pm
Forum: Beginners
Topic: Pi & Batteries / suitable pack (?)
Replies: 6
Views: 1080

Re: Pi & Batteries / suitable pack (?)

That unit has two USB Outlet - one configured for the iPad and the other as normal so there would not be a problem powering the display separately.
by Wheel_nut
Sat Jan 12, 2013 2:56 am
Forum: Beginners
Topic: Pi & Batteries / suitable pack (?)
Replies: 6
Views: 1080

Re: Pi & Batteries / suitable pack (?)

Yes, that power pack would power the RPi for about 10 hours but you would need to modify the Display to power it from 5V.

I have seen somewhere on this forum that it is easy to by-pass the 12V to 5V regulator in the Display to allow it to be powered from a 5V source.
by Wheel_nut
Sat Jan 12, 2013 1:06 am
Forum: Beginners
Topic: Pi & Batteries / suitable pack (?)
Replies: 6
Views: 1080

Re: Pi & Batteries / suitable pack (?)

I suspect that the two Battery packs are identical except that the 2A one has configuration resistors on the USB Socket data lines to allow an iPad to draw up to 2Amps from it. The Display does not specify its supply Voltage but being designed for in car use, I suspect that it is designed for 12V, Y...
by Wheel_nut
Fri Jan 11, 2013 3:09 pm
Forum: Beginners
Topic: Scratch Freezes
Replies: 3
Views: 594

Re: Scratch Freezes

Yes, Scratch is a very intuitive tool for getting children started with the concepts of Programming. The grouping of the Control, Actions and I/O commands facilitates a very rapid uptake of the concepts of loops, conditional branches, interrupts etc.. I let my 9 year old Grandson loose with it and a...
by Wheel_nut
Thu Jan 10, 2013 5:10 pm
Forum: Beginners
Topic: Scratch Freezes
Replies: 3
Views: 594

Re: Scratch Freezes

There have been two releases since then. Try downloading the latest release which is more stable but Scratch still freezes occasionally. Try NOT to play sounds more frequently than every three move or rotate instructions. I think that Scratch sometimes overflows the sound DSP stack which caused it t...
by Wheel_nut
Tue Jan 08, 2013 11:51 am
Forum: Beginners
Topic: DC Barrel to Micro USB
Replies: 6
Views: 4678

Re: DC Barrel to Micro USB

I agree, I already have a working setup where the power supply is plugged straight into the USB hub and from there a USB to micro USB cable to the power socket on the Pi. However it negates the purpose of my little experiment. I don't see why I can't do what I'm aiming to achieve? What does the pow...
by Wheel_nut
Tue Jan 08, 2013 12:00 am
Forum: Beginners
Topic: sd card
Replies: 1
Views: 443

Re: sd card

Get an SD Card to USB adapter from Poundland.
by Wheel_nut
Sat Jan 05, 2013 6:30 pm
Forum: Beginners
Topic: DC Barrel to Micro USB
Replies: 6
Views: 4678

Re: DC Barrel to Micro USB

What are you powering "through" the RPi USB, GPIO and HDMI Connectors? THe problem with powering all of your peripherals through the MicroUSB connector is that you are likely to encounter excessive volt drop through the F3 Polyfuse. Also, many MicroUSB cables have exccessively high resistance conduc...
by Wheel_nut
Fri Jan 04, 2013 1:01 am
Forum: Beginners
Topic: BLind newbie
Replies: 10
Views: 1388

Re: BLind newbie

I have not tried SSH-ing into the RPi without first enabling SSH in the Config.pi screen so must assume that it is NOT enabled by default. The Rasbpi Config screen appears when the SD Card is first booted. It is a sequential list of about 8 options that can be selected and parameters for that option...
by Wheel_nut
Thu Jan 03, 2013 11:59 pm
Forum: Beginners
Topic: BLind newbie
Replies: 10
Views: 1388

Re: BLind newbie

Hello. My first Raspberry Pi is on it's way to me in the post. Although I've been a professional programmer for 20 years and hark from the days of the first 6502 based home computers, I'm now totally blind. Can anyone tell me if SSH is now enabled by default in the latest Raspbian images? I have do...
by Wheel_nut
Thu Jan 03, 2013 12:10 am
Forum: Beginners
Topic: Basic for the basics
Replies: 10
Views: 1500

Re: Basic for the basics

This one works out-of-the-box and ships from a UK location so you will get it in a few days. It can be bought from Hong Kong or China sellers for a quid cheaper but will take up to a month to get to you.

http://www.ebay.co.uk/itm/370569077102? ... 1423.l2649
by Wheel_nut
Mon Dec 31, 2012 12:28 am
Forum: Troubleshooting
Topic: RCA video output
Replies: 11
Views: 2506

Re: RCA video output

What happens when you apply Power? Does the Red LED light up? Does the Green LED Flash?
by Wheel_nut
Sat Dec 29, 2012 4:26 pm
Forum: Beginners
Topic: Overclocking and Power Supply
Replies: 6
Views: 3042

Re: Overclocking and Power Supply

Raspiberry wrote:
It rebooted when I ran Minecraft - Pi Edition.
Dare I ask where you got Minecraft - Pi Edition from? is it now available for download?
by Wheel_nut
Sat Dec 29, 2012 1:14 pm
Forum: Beginners
Topic: Reset SD card
Replies: 2
Views: 2085

Re: Reset SD card

That is because you are only seeing the Boot partition, the main partition being ext4 format and invisible to Windows. If you are putting a new Image on the card using Win32DiskImager, just let Win32DiskImager overwrite it. It will do the re-format on the fly. If you want to use the card as a FAT da...
by Wheel_nut
Thu Dec 27, 2012 7:03 pm
Forum: Beginners
Topic: Raspberry PI is slightly damaged, what should I do?
Replies: 8
Views: 1172

Re: Raspberry PI is slightly damaged, what should I do?

Do you mean the pins of the 26 pin Connector (GPIO Connector)?

If so, simply straighten it gently and use it. As long as the pins are not touching one another, you will be OK.

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