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Andrew Elwell
155 followers -
System Administrator and Geek at large
System Administrator and Geek at large

155 followers
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I've got the power
(It's getting, it's getting, it's getting kinda hectic) So, another "I should really get round to that" project that's worked its way to the top of the desk is repurposing a skip-dived server PSU (or 4) to be more usable. Exhibit A - One ex-sun 'SPASUNM-03G...

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Handheld animal RFID reader teardown
As some of you may know, we have a small herd of llamas and although each is easily recognisable legislation and the  Llama Association of Australasia Inc. require that the animals be microchipped. As a geek, I'd also like to integrate routine monitoring of...

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The writing's on the wall
For the last couple of jobs I've had, having some sort of status display has proved itself really useful. Things like an overloaded nagios dashboard help to drill down to see what system issues you may have, but on large systems there'll always be some comp...

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The Physical Web. Yeah, thats a good idea.
In the last week I've discovered the Physical Web idea from google, and I'm sold on the idea. Apart from the "what's around here" geeky stuff, it's a great idea for sensible 'distant' digital signage. For example, $dayjob is at the Pawsey Supercomputing Cen...

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All around the water tank, waiting for the rain...
Having the luxury of mains water means that I don't really  care in fanatical detail about the state of the dam water levels for Perth (except that "it's lower than it should really be"). However with our new place being entirely dependant on rainwater coll...

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Traffic Light status IoT device
Following on from an all-too-regular "Is the lasercutter working?" mail thread at our local hackerspace, I've decided to come up with a nice simple IoT 'traffic light' device. Plan is to use KISS principles and have 3 big pushbuttons (Red, Amber, Green) tha...
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