Go to advanced search

by MarkDaniels
Mon Mar 21, 2016 7:33 pm
Forum: Troubleshooting
Topic: Pi 3 is Destroying SD Cards
Replies: 59
Views: 16449

Re: Pi 3 is Destroying SD Cards

Thank you everyone for taking the time to post. I can now confirm that the problem is with the Pi 3 and NOT the power supplies. I have one dead Pi 3 which caused the initial problems and two dead SD cards. The power supplies are all fine, and always were. With both Pi 3s down (one dead and the other...
by MarkDaniels
Mon Mar 21, 2016 11:35 am
Forum: Troubleshooting
Topic: Pi 3 is Destroying SD Cards
Replies: 59
Views: 16449

Re: Pi 3 is Destroying SD Cards

by pik33 » Sun Mar 20, 2016 7:21 pm

"My Pi3 burned one of three SD cards I put in it. Two other card works OK."

Please tell me more about what happened with your Pi 3.
by MarkDaniels
Sun Mar 20, 2016 2:37 pm
Forum: Troubleshooting
Topic: Pi 3 is Destroying SD Cards
Replies: 59
Views: 16449

Re: Pi 3 is Destroying SD Cards

Thank you for your in-depth response. Please see my notes inserted, below, which I hope will not cause offense. If you read to the bottom you will find an explanation regarding part of the problem. It is very unlikely that 2 pi R screwed. Especially given your explanation of how the second pi3 star...
by MarkDaniels
Sat Mar 19, 2016 1:43 pm
Forum: Troubleshooting
Topic: Pi 3 is Destroying SD Cards
Replies: 59
Views: 16449

Re: Pi 3 is Destroying SD Cards

jlukanc posted: "I think you need a 5v 2.4A outlet for increased power draw for usb ports." Thank you for your response, but this is clearly not the issue as the Pi 3 was working from the original PSU prior to this problem. If you read through my full description of the problem you will see that the...
by MarkDaniels
Sat Mar 19, 2016 12:25 pm
Forum: Troubleshooting
Topic: Pi 3 is Destroying SD Cards
Replies: 59
Views: 16449

Pi 3 is Destroying SD Cards

I have 2 Pi 3 boards. One has been configured and run for several days trouble free. In each case the SD card was updated in a Pi 2 and transferred to the new Pi 3. The hardware setup for each Pi is virtually identical. However, on initial power up of one of them, the LEDs lit briefly then went out....
by MarkDaniels
Mon Oct 12, 2015 2:37 pm
Forum: Troubleshooting
Topic: Raspbian Jessie zip appears corrupt
Replies: 71
Views: 31831

Re: Raspbian Jessie zip appears corrupt

NOTE TO THE ADMINISTRATORS I have just wasted 4 hours of my time attempting to download and unzip the Raspbian Jessie package. Not only has this wasted my time, but it has also used a lot of your bandwidth. Multiply this by tens or hundreds of thousands of other like me and it is no wonder your site...
by MarkDaniels
Tue Jul 01, 2014 2:57 pm
Forum: Compute Module
Topic: STICKY: Compute Module Dev Kit Camera IO Adapters - README
Replies: 21
Views: 29897

Re: Compute Module IO Camera Adapters - DO NOT USE

Farnell have just sent me an email about this problem, so it looks like they are on the case.
by MarkDaniels
Sun Mar 23, 2014 3:09 pm
Forum: General discussion
Topic: My Raspberry Pi does nothing
Replies: 6
Views: 1325

Re: My Raspberry Pi does nothing

Use your Raspberry Pi to add an additional monitor to your PC over your LAN and extend your desktop onto it using Synergy and VNC. http://synergy-foss.org/

It's a great use for a Pi and works extremely well, if a little tricky to set up initially.
by MarkDaniels
Thu Feb 13, 2014 5:23 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Using Slice of Pi/o and 16x2 LCD at the same time?
Replies: 30
Views: 7291

Re: Using Slice of Pi/o and 16x2 LCD at the same time?

by Mistertee » Thu Feb 13, 2014 5:01 pm On this page, there are links to a schematic and description of the Custard Pi 7 board, which has an LCD interface built on. It uses the I2C bus, so does not use any of the GPIO pins at all. http://www.sf-innovations.co.uk/custard-pi-7.html There is also a Po...
by MarkDaniels
Mon Feb 03, 2014 5:00 pm
Forum: General discussion
Topic: Use RPi with Power Bank 30000mAh
Replies: 9
Views: 3101

Re: Use RPi with Power Bank 30000mAh

by Ravenous » Mon Feb 03, 2014 4:46 pm I'm waiting for a battery with a MILLION mAh (Micro-amp hours... someone will try it...) Yeah, I actually have a 1 million mAh battery (1000 Ah)! It's 12 volt, lead-acid and weighs about 600 kg. It's made up of six wet (not gel) cells! So annoying how marketer...
by MarkDaniels
Wed Jan 15, 2014 5:41 pm
Forum: General discussion
Topic: HDMI switch
Replies: 6
Views: 1081

Re: HDMI switch

Hi Andre The solution is really quite simple and inexpensive. You will need two raspberry Pies, networked and run Synergy on each of them. You will need to configure one as the server and the other as the client. The server will take your inputs and the client will display stuff on it's monitor. I d...
by MarkDaniels
Mon Jan 06, 2014 6:12 pm
Forum: General discussion
Topic: How can I output a certain voltage?
Replies: 4
Views: 1223

Re: How can I output a certain voltage?

If you are looking to do this as a learning exercise it might be worth investing in a Gertboard. You could then use the on-board A-D converter (which has two 10 bit A-D channels) to convert your analogue signal into digital. You will need to amplify it and level shift it before feeding it into the A...
by MarkDaniels
Tue Dec 31, 2013 4:28 pm
Forum: General discussion
Topic: Raspberrypi is open hardware??
Replies: 64
Views: 39455

Re: Raspberrypi is open hardware??

I know that I am late in joining this discussion, but the copyright notice at the end of the schematics for the Raspberry Pi makes for interesting reading and is reproduced below: Design (c), 2011, 2012 Raspberry Pi Foundation All Rights Reserved Portions of this work copyright 1979-2012 Norcott Te...
by MarkDaniels
Tue Dec 31, 2013 11:51 am
Forum: General discussion
Topic: Raspberrypi is open hardware??
Replies: 64
Views: 39455

Re: Raspberrypi is open hardware??

I know that I am late in joining this discussion, but the copyright notice at the end of the schematics for the Raspberry Pi makes for interesting reading and is reproduced below: Design (c), 2011, 2012 Raspberry Pi Foundation All Rights Reserved Portions of this work copyright 1979-2012 Norcott Tec...
by MarkDaniels
Fri Dec 20, 2013 5:54 pm
Forum: Beginners
Topic: Advice - How to tell if an electrical appliance is 'on'
Replies: 13
Views: 3727

Re: Advice - How to tell if an electrical appliance is 'on'

Since you are interested in when gas is being burnt, I guess you could look for the audio signature of the flame. In it's simplest form, you could monitor for the dominant frequency using a bandpass filter and a simple amplifier / comparator circuit. I am not suggesting that this is the best way to ...
by MarkDaniels
Mon Dec 16, 2013 2:00 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 114078

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

Gary Littlemore wrote:Where have you seen that?
The post by BBsan2k directly above mine. The link is as follows:

https://twitter.com/BBsan2k/status/407810208115990528
by MarkDaniels
Mon Dec 16, 2013 12:42 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 114078

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

So, the case is actually running on Kickstarter, then? I've just had a look and it says 28 days to launch. Sign me up! 8-)
by MarkDaniels
Fri Nov 15, 2013 11:58 am
Forum: General discussion
Topic: Unable to determine your tty name.
Replies: 7
Views: 6810

Re: Unable to determine your tty name.

Boot into single user mode http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109612 to repair the broken root filesystem. Hi Dougie Thanks for the help. I'm guessing my root file system is badly broken, because it stalls on the following, after carrying out the instructions in the above link: UFS: ...
by MarkDaniels
Thu Nov 14, 2013 3:36 pm
Forum: General discussion
Topic: Unable to determine your tty name.
Replies: 7
Views: 6810

Re: Unable to determine your tty name.

I seem to have a very similar problem on one of my Pis. I have just gone to Option 8 in Raspi-Config and selected A2 Hostname (Set the visible name for this Pi). I set the new name to alisonpi and exited. The system rebooted and I got a prompt which said alisonpi login: I entered the login as pi as ...
by MarkDaniels
Thu Oct 31, 2013 2:26 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 114078

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

This is great news. I have been working on a similar idea of and on since the Pi launched, but always hit a roadblock with extending the Pi's connectors. Sourcing the parts and making the cables was a real problem, but the idea of using moulded connectors and having retaining points in the case for ...
by MarkDaniels
Mon Oct 28, 2013 3:48 pm
Forum: Troubleshooting
Topic: StartX fails – worked yesterday [solved]
Replies: 53
Views: 144498

Re: StartX fails – worked yesterday [solved]

by Nr90 » Tue May 08, 2012 2:55 am I am far from an expert an am not sure how to replicate this myself, but other users on other systems I found google-ing had similar errors after updating/installing software. The OP mentions installing things. The .Xauthority seems to get messed up. Other people ...
by MarkDaniels
Wed Jul 10, 2013 9:36 am
Forum: Other projects
Topic: Possible Screens
Replies: 3
Views: 855

Re: Possible Screens

Try this page for some small monitors. I use the Velleman 7 inch unit which is quite good. http://cpc.farnell.com/jsp/search/results.jsp?N=411&Ntk=gensearch&Ntt=velleman+monitor&Ntx=mode+matchallpartial&suggestions=false&ref=globalsearch&_requestid=610156 The cables you might need are phono-phono an...
by MarkDaniels
Tue Jul 02, 2013 10:31 am
Forum: Beginners
Topic: @-character on an Apple iMac G3 Keyboard
Replies: 1
Views: 564

Re: @-character on an Apple iMac G3 Keyboard

Try holding down the SHIFT and CTRL keys and type U40 which will enter the code for the @ character in codepage 850. If your codepage is different you may have to look it up or experiment.
by MarkDaniels
Tue Jun 18, 2013 9:38 am
Forum: Troubleshooting
Topic: Plugging in 2TB WD Passpost HDD freezes Pi
Replies: 24
Views: 11158

Re: Plugging in 2TB WD Passpost HDD freezes Pi

Very interesting discussion with real and useful information. I am only too familiar with the powered hub problem and find that many of them tend to backfeed. I took this issue up with CPC when the Pi was first launched and was told that their recommended 7-port powered hub was perfectly OK and that...
by MarkDaniels
Tue Jun 11, 2013 11:20 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: 0-10v PWM possible?
Replies: 36
Views: 11183

Re: 0-10v PWM possible?

by mahjongg » Mon Jun 10, 2013 8:02 pm @MarkDaniels A full gertboard is a bit over the top complex for this essential simple job! You could convert the PI's 3,3V own PWM signal to a 10V PWM signal, (simple NPN transistor, a base resistor (1 to 4K7), and a pull-up to 10V resistor 470 Ohm to 2K2) mig...

Go to advanced search