The Raspberry Pi computer comes without Wi-Fi initially, but it’s true freedom is reached when you connect it wirelessly. There are a number of options for this, but I’d recommend using the Edimax Nano USB, it’s easy to setup your Raspberry Pi to work with this – just follow this guide.
Disk space usage Raspberry Pi
You’ve had your Raspberry Pi working away, first as a media center – then a web server with a database and you’ve been tinkering with lots of other features, so what is taking up your space?
Luckily the Raspberry Pi, when running Raspian has a good command-line tool already installed.
Just type the following into an SSH terminal.
Are you ready for google’s mobile update?
Google recently announced on one of their blogs that an update coming in the next couple of months will elevate the relevance of mobile friendly websites.
Check your site out by going to this page:
https://www.google.co.uk/webmasters/tools/mobile-friendly/
If your friendly, google will say your awesome!, if not it might be worth updating your site to stay ahead of the competition.
Twitter Weekly Updates for 2012-09-09
- Eithne going to #school for the first proper session today. #growing up very fast! #
Twitter Weekly Updates for 2012-09-02
Twitter Weekly Updates for 2012-08-26
- I've #justsponsored John Helm on @JustGiving. Support them and Childrens Chronic Arthritis Association @ http://t.co/ZgacgzlJ #
- so for 3 years my about page has been a default wordpress page… updated now, not sure what happened to my old page though! #
Speeding up Zencart, resize images
When optimising your zencart install there is a very powerful plugin available. This is Image Handler, it comes in four (to date) variants. Version 4 is for Zencart 1.5.x, whereas version 3 is for the 1.3.x versions (still the most common around to date).
What does it do?
basically it resizes images on the first load so smaller ones are then used when required, images generated are then stored in a cache so your system doesn’t have to redo them.
The advantages of this is loading time, for example a test image was 14Kb, the resized version was 5.7Kb, so you can imagine when you are loading 12 images the saving and speed-up is quite substantial.
Your full size images are still available, and are used for the larger image view clickable on the view listing page.
To give you an idea – the implementation of this plugin – has reduced the load times of the store I worked on by at least 50% on the main page, more on results pages where 12+ images might be loaded. In addition the bandwidth consumption has dropped around 25% (despite an increase in engagement of visitors).
CPU doesn’t seem to be high, the first creation takes less than a second (so on day one page load times did increase slightly – however by day two they had reduced and have continued to fall as more of the images are created).
If you want to see it in action visit Delicate Dreams (Sterling Silver Jewellery) and check the attributes of the images (and the sizes).
One other addition with this plugin is that you can have a hover – this gives a zoomed in view of the item – particularly useful for jewellery or ornate items.
Twitter Weekly Updates for 2012-06-03
- #chorley picnic at #astley park looks like a great day ahead. #
Designed for mobile?
Regular visitors to this blog (which posts less regularly than you deserve) will have noticed I change designs regularly.
Normally I choose a design that intrigues me, or that might allow me to experiment with something new. However this doesn’t always help you, the real “customer” of this blog.
After reviewing the visitor stats I have settled on this as the new look, and I don’t plan on changing it for a while.
The main advantage of this new look is mobile or rather smartphones and their related devices. It look pretty good on both a normal browser and a mobile sized screen, with easy to focus on areas for the good old (new) double tap to zoom.
Why not a truly mobile theme? These turn a site into rectangles that expand as you interact ( see wiki on your phone). Basically I hate them… Part of the point of a website is to show people things creatively, the standard ways of making a site suitable for smartphones seems to be to strip everything away.
Nowadays with relatively generous bandwidth limits and 4G networks around the corner the Internet should be used as it was intended.
Exceptions… Yes only one though – online payments – a nightmare on a normal site it’s extremely painful on a mobile device. If we want people to interact outside of an “app” store we really need to sort that, so far amazon seems to be the only online retailer where repeated purchases are a breeze. Luckily for me I don’t need to take payments , unless you think I deserve money for this sporadic essay writing.
Talking about mobiles and other devices, after a couple of weeks of using an iPad, many mobile sites think I need a washed out dull experience, however the iPad is not a phone, it has a better resolution than many laptops, and even high-end screens.
This means you really want an iPad to see your site as you originally wanted it to be seen – so don’t hide it…. the only thing that really does not work on the iPad are sliders, and that is now on a minority of sites – there are ways to get them to work and when they work – it works fine. The iPad is arguably what mobiles will end up being.
Small screens are only here for a short while, 5 years ago no one really thought larger screens than the maximum 320 * 240 arenas that used to be used would be improved to the resolution and size of a modern phone. With glasses like google’s Augmented Reality project possibly becoming available, the screen real-estate will expand to those devices. Flexible displays are also getting closer, so soon we will be able to expand displays larger than default sizes, already you can send your smart phone screen to a tv or other devices – this may become the default way of viewing data, an the smaller screen used only when truly mobile (which is not when most phones are now used!).
Anyway that’s my rant and opinion made public – read it and ignore at your peril.
Twitter Weekly Updates for 2012-03-25
- Tsunami ship drifting off Canada. Very Mary Celeste. http://t.co/iwWCCEdq #