Monthly Archives: March 2011

House announcement system – Text to speech on events

Posted on March 5, 2011 by

My wireless doorbell project was a huge success. But it got me thinking that all these events I’m capturing from sensors around the house should be good to listen to as they happen, not just the doorbell. Time for some … Continue reading →

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What’s the best power supply for an arduino in the UK ?

Posted on March 5, 2011 by

Well, it seems that not all power supplies are equal. I had a shock yesterday (not literally that is) when I hooked up a power meter to my arduino-powered XBee-to-ethernet gateway controller. It measured a staggering 14watts !  

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Make: Electronics Enclosure in Cardboard

Posted on March 3, 2011 by

Don’t you think the normal electronics enclosures are dull ? They are all square boxes in grey/black plastic or die-cast aluminium. Time for something more stylish… and cheap, which is always a perfect fit for your latest electronics creation… time … Continue reading →

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Shrink image file size prior to upload in Ubuntu

Posted on March 3, 2011 by

Before I can upload any files to this blog, I want to cut the image file sizes down, or I’ll blow my free-allowance limit. How to do this ?

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