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by DavidMS
Mon Jun 09, 2014 12:17 pm
Forum: Automation, sensing and robotics
Topic: Power model railway turnouts from a Pi
Replies: 40
Views: 10606

Re: Power model railway turnouts from a Pi

I have a circuit working that drives up to 8 points using two 8 way relay cards. I did not go down the I2C interface as I already had a legacy interface I could drive from the Raspberry Pi, but if starting from scratch certainly would have done. I would strongly suggest you include a capacitance dis...
by DavidMS
Fri May 23, 2014 6:29 pm
Forum: Python
Topic: Replying to a tweet - in_reply_to_status_id
Replies: 0
Views: 550

Replying to a tweet - in_reply_to_status_id

Has anyone got an example of the using Tweepy to reply to a tweet ? I have Python code that identifies specific tweets and generates a response tweet but I cannot get the 'in_reply_to_status_id' bit to work so the response is flagged as a 'reply' to the original 'tweeter' - which makes it easier for...
by DavidMS
Sun May 18, 2014 12:19 pm
Forum: Troubleshooting
Topic: Win32Disk windows8.1 file lock problem
Replies: 6
Views: 988

Re: Win32Disk windows8.1 file lock problem

Thanks for the quick replies, yes I am using the latest version of the Win32. I do not believe that the problem is with the Rpi or SD card. If you look on the Win32 site the file locking is a known issue - it just seems to have got a lot worse I could setup a second SD card reader but to be honest I...
by DavidMS
Sun May 18, 2014 10:52 am
Forum: Troubleshooting
Topic: Win32Disk windows8.1 file lock problem
Replies: 6
Views: 988

Win32Disk windows8.1 file lock problem

Is anyone else finding more problems with Win32Disk reporting a file locking error when trying to read SD card images. It seemed basically ok until recently. But over the last couple of days I have had problems firstly with windows reporting that there is a problem it wants to 'repair' with SD cards...
by DavidMS
Fri May 02, 2014 12:54 pm
Forum: General discussion
Topic: Bitscope - watch out for import duty
Replies: 3
Views: 1601

Bitscope - watch out for import duty

Received my Bitscope Micro earlier this week, great product, but Worth noting that if purchasing in the UK you will get an invoice from Fedex for import duty of £30. I guess this is not a surprise but worth adding into your cost estimation
by DavidMS
Fri Apr 04, 2014 9:49 pm
Forum: General discussion
Topic: New Website
Replies: 94
Views: 36819

Re: New Website

Sorry I am sure you have put a lot of work in to it, but the new website simply does not work well for me - I kind of struggle with understanding what was wrong with the old one.

My real problem is with the carousel, basically it just makes me feel sick
by DavidMS
Mon Jan 20, 2014 10:08 pm
Forum: General discussion
Topic: Swagstore 8GB NOOBS doesn't have Wolfram?
Replies: 8
Views: 1064

Re: Swagstore 8GB NOOBS doesn't have Wolfram?

I have just a clean install of Raspbian using NOOBS 1.3.4, the Wolfram icon is on the desktop and seems to work
by DavidMS
Sun Jan 19, 2014 10:30 pm
Forum: General discussion
Topic: Swagstore 8GB NOOBS doesn't have Wolfram?
Replies: 8
Views: 1064

Re: Swagstore 8GB NOOBS doesn't have Wolfram?

I had a similar problem with SD card from ModmyPi just before Christmas which came with an old version of NOOBS even though new versions had been available for a while. I do feel suppliers should either be clear what version you are buying or put a little effort into making sure SD cards are updated...
by DavidMS
Sat Dec 21, 2013 8:24 am
Forum: Beginners
Topic: edit crontab
Replies: 27
Views: 30931

Re: edit crontab

Not sure if this adds anything, but I was having a problem this morning getting crontab to update using the sudo crontab -e. After reading this I noticed that if you exit nano by performing cntr o the cntr z crontab is not updated. Thinking about it this does not surprise me but I had not noticed my...
by DavidMS
Sun Dec 15, 2013 3:25 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 114720

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

Coming from a different angle how about something to make-up backups really simple. Not sure how or if it can be done but consider a box with a USB connection and a SD slot. The user plugs the USB lead into the Pi, an SD card into the box and runs an application that creates an image on the new SD c...
by DavidMS
Sun Dec 08, 2013 9:28 pm
Forum: Camera board
Topic: Low Res pics from Pi Cam
Replies: 2
Views: 734

Re: Low Res pics from Pi Cam

great thanks seems to work ok with this
by DavidMS
Sun Dec 08, 2013 7:15 pm
Forum: Camera board
Topic: Low Res pics from Pi Cam
Replies: 2
Views: 734

Low Res pics from Pi Cam

I know it is a bit of an insult to the hardware but is there an way to capture low res images, even with w and L at 640 and 480 respectively the file size is over 300k which is far too bit to up load to Twitter. I guess what I am looking for is some way to lower the dpi ?

by DavidMS
Sat Dec 07, 2013 1:11 am
Forum: Troubleshooting
Topic: Wifi with Edimax & BT HomeHub4
Replies: 3
Views: 1266

Re: Wifi with Edimax & BT HomeHub4

I am not sure what version of of BT home hub I have but after similar problems I found the problem was down to a ‘power saving feature’ of Realtek chip in my wifi dongle – turning this off produced a dramatic improvement in wifi stability for SSH sessions. see this topic for the details http://www.r...
by DavidMS
Sat Dec 07, 2013 1:06 am
Forum: Other projects
Topic: Scrolling an RSS project in Dec MagPi
Replies: 2
Views: 2059

Re: Scrolling an RSS project in Dec MagPi [solved]

Yes that would do it, thanks
by DavidMS
Fri Dec 06, 2013 11:36 am
Forum: Other projects
Topic: Scrolling an RSS project in Dec MagPi
Replies: 2
Views: 2059

Scrolling an RSS project in Dec MagPi

Has anyone tried the RSS project in the Dec Mag Pi ? - I am trouble getting the final bit to download "Finally, download the AndyPi LCD python class: sudo wget http: //andypi . co. uk/downloads/AndyPi_LCD. py" I just get --2013-12-06 11:34:27-- ftp://http/ (try: 8) => `.listing' Connecting to http (...
by DavidMS
Sun Aug 25, 2013 10:07 pm
Forum: Beginners
Topic: Use of OCR materials
Replies: 10
Views: 1896

Re: Use of OCR materials

Has anyone managed to get the TweetLED.py to work ? http://www.ocr.org.uk/Images/128312-recipe-card-twitter-led.pdf With my limited knowledge of Python there seem to be a couple typos - a missing ' in line (9) and a T that should be a t in the print statements - this seems to check out when I compar...
by DavidMS
Mon Dec 24, 2012 12:42 pm
Forum: Beginners
Topic: Giving up RPi - call me when Wifi+Motion+Webcam is working
Replies: 28
Views: 7465

Re: Giving up RPi - call me when you get Wifi working

Ok so the setup upto date Raspbian image [16-12] with recent update - on a 'early' RPi also update Raspbian updated current but from an older late summer image this time on a new made in UK Rpi Cameras a low end HP and Logitech [Logitech Webcam C200 -picked as is listed one that other have found to ...
by DavidMS
Mon Dec 24, 2012 8:46 am
Forum: Beginners
Topic: Giving up RPi - call me when Wifi+Motion+Webcam is working
Replies: 28
Views: 7465

Giving up RPi - call me when Wifi+Motion+Webcam is working

Well is it Christmas eve, lots to do as usual. One reason for this is that having left my Rpi's alone for a couple of months in frustration with the inability to run reliably with WiFi, I once again made an attempt to setup a basic webcam application using Motion and WiFi with the hope that in the l...
by DavidMS
Wed Dec 19, 2012 6:39 am
Forum: Troubleshooting
Topic: Motion failing
Replies: 3
Views: 775

Re: Motion failing

sorry forgot this is the error message "[1] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 3): Input/output error"
by DavidMS
Tue Dec 18, 2012 9:59 pm
Forum: Troubleshooting
Topic: Motion failing
Replies: 3
Views: 775

Motion failing

Has anyone seen problems with Motion failing after a period of time - generally after 6 to 12 hours. I am running on a new 'made in the UK pi with the latest up to date Raspbian, running head less. There are no power supply issues and I have a powered hub. I have it configured to auto switch into tu...
by DavidMS
Tue Oct 30, 2012 7:55 am
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 156952

Re: BASIC - more harmful than useful?

Downloaded Tiny Basic to my Rpi yesterday, marvellous. I can see Python has a place educationally, it may be that I started with BASIC [on punched cards] or it may be the way Python is implemented but I still find BASIC an easier starting point. That said I spent a far more time that I should have d...
by DavidMS
Sun Oct 28, 2012 10:26 am
Forum: Beginners
Topic: moving files from desk top to Rpi
Replies: 8
Views: 3271

Re: moving files from desk top to Rpi

Just use one of the apps i suggested. The first one creates a virtual hard drive , and therefore works with all software. ghans Sorry, but I need a bit more help here, I am not clear, on where the virtual drive lives [physically] and then how I access it from the Pi. I have installed Netdrive on th...
by DavidMS
Sat Oct 27, 2012 5:25 pm
Forum: Beginners
Topic: moving files from desk top to Rpi
Replies: 8
Views: 3271

Re: moving files from desk top to Rpi

malakai wrote:What OS are you running on your PC and do you have a remote connection already.
It will help as each remote client has a way of doing it. Some more complicated than others.
Window 7

SSH is working and I have Putty and VNClient running on the PC to use it headless
by DavidMS
Sat Oct 27, 2012 5:11 pm
Forum: Beginners
Topic: moving files from desk top to Rpi
Replies: 8
Views: 3271

moving files from desk top to Rpi

Is there a simple way to move files from a PC desktop onto the Rpi - for instance it would be great if you could simply drag a file from the PC desktop onto a Rpi virtual desktop running on the PC. I understand why it is not quite that simple but has anyone come up with an app the achieves the equiv...
by DavidMS
Sun Oct 21, 2012 7:41 pm
Forum: Raspbian
Topic: Trouble with motion
Replies: 13
Views: 28022

Re: Trouble with motion

Just asking but the powered hub just looked at it in Farnel and do they also supply a separate PSU with it? Also amend maximum size of picture to 352 x 288 Adrian Yes hub comes with PSU and seems to power the Rpi fine by looping back a line to the RPI power connector. have not fiddled with the reso...

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