Today I did a clean install of Ubuntu 16.04.1 LTS 64 bit and upgraded my site

Today I did a clean install of Ubuntu 16.04.1 LTS 64 bit and upgraded my site
Over the past couple of days my site has been offline as I have been optimising it. I have installed: Ubuntu 16.04.1 LTS 64 bit MariaDB rather than Mysql database server Nginx web server The site definitely feels more responsive to me but that is purely subjective. I have tried doing speed tests but they vary even between page refreshes.... Read More

Adding auto bed levelling to Prusa i3 on Sanguinololu v1.3 (Marlin firmware)

Adding auto bed levelling to Prusa i3 on Sanguinololu v1.3 (Marlin firmware)
This is a diff file of my changes required in the latest Marlin firmware to enable auto bed levelling on the Prusa i3 using a Sanguinololu v1.2+ board. You would need to change some of the figures depending on your own requirements and servo positions etc. diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h index edbeb44..45812fc 100644 --- a/Marlin/Configuration.h +++ b/Marlin/Configuration.h @@ -105,16 +106,17... Read More

ATI R9 270x (and R9 295X2,R9 290X,R9 290,R9 285,R9 280X,R9 280,R9 270X,R9 270) enable audio over dvi connection

ATI R9 270x (and R9 295X2,R9 290X,R9 290,R9 285,R9 280X,R9 280,R9 270X,R9 270) enable audio over dvi connection
As standard you do not get audio over the DVI port on R9 devices. I got audio working correctly over DVI using an old DVI to HDMI converter that shipped with one of my previous ATI graphics cards, the HD4850x2. They are still floating around on ebay, and look like this: Just use a standard HDMI lead to your monitor... Read More

LetsEncrypt renew Apache PluginError((‘There has been an error in parsing the file (%s): %s’, u’/etc/apache2/sites-enabled/000-default-le-ssl.conf’, u’Syntax error’),).

LetsEncrypt renew Apache PluginError((‘There has been an error in parsing the file (%s): %s’, u’/etc/apache2/sites-enabled/000-default-le-ssl.conf’, u’Syntax error’),).
Trying to renew a LetsEncrypt SSL certificate in Apache and I got this unhelpful error message: PluginError((‘There has been an error in parsing the file (%s): %s’, u’/etc/apache2/sites-enabled/000-default-le-ssl.conf’, u’Syntax error’),). Now I can understand most error messages and figure out the issue but this one had me stumped. There was nowhere near enough information to allow me to determine the... Read More

Apache wordpress remove index.php 404 not working .htaccess definitive solution

Apache wordpress remove index.php 404 not working .htaccess definitive solution
Scenario: You are running Apache, have installed WordPress and are trying to get pretty permalinks working and it keeps returning a 404 page. You’ve tried everything – a2enmod rewrite, removed the .htaccess file, reset the permalinks, changed them back to the pretty version, restarted Apache – in short everything people tell you. The problem is still there isn’t it? The... Read More

Phpmyadmin root login not working apache http2

Phpmyadmin root login not working apache http2
After playing around with http2 for a couple of servers I am commissioning (not this one yet!) I consistently run into issues with root being unable to log into phpmyadmin. Logging into mysql manually works perfectly, the password is definitely correct. If you have the same issue, try this as root: echo "update user set plugin='' where User='root'; flush privileges;"... Read More

So.. my quadcopter disappeared from view, and my life.

So.. my quadcopter disappeared from view, and my life.
For quite some time I have been considering getting into the world of (or should that be the air of?) remote control flying machines such as quadcopters and the bigger brothers hexacopters and octocopters. Recently while enjoying a nice day out shopping with my wife (we’ve all been there haven’t we) and I saw a shop that appealed to all my... Read More

Lissajous Patterns on an Oscilloscope using Silego GreenPAK4 Development Kit and SLG46620V

Lissajous Patterns on an Oscilloscope using Silego GreenPAK4 Development Kit and SLG46620V
Introduction What are Lissajous Patterns? Lissajous Patterns are the result of two sine waves controlling the X and Y axes of an oscilloscope. Lots of science fiction movies will show Lissajous Patterns on oscilloscopes as it is a very impressive thing to display. https://en.wikipedia.org/wiki/Lissajous_curve What is an Oscilloscope? An oscilloscope is an electronic device used for viewing waveforms or electronic... Read More