February 21st, 2010
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February 14th, 2010
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February 10th, 2010
Today saw the long awaited arrival of an Arduino starter kit. Ordered from oomlout a couple of days ago it’s arrived in good time, and made a great impression.
The kit itself is neat, tidy and very well presented in a plastic compartment box – so no cause for untidiness or losing anything – together with a great little guide to getting started. The guide, as well as some handy introductory material about the kit, programming and electronic components. After that each page takes you through constructing a small experiment – working up in complexity and using all the components in the kit.
I chose to install the IDE on my eee 1000H netbook rather than my desktop as it had a much more up to date Ubuntu installation which met the requirements without any further hassle.

Arduino flashing a LED
I started with the first example – to make a LED blink – and discovered how case sensitive the sketch seems to be – but it was easy to work out where I was wrong from the way it debugged during the compile and highlighted the offending line.
A very quick upload later and the LED was blinking merrily away. So easy to change the mark/space ratio by altering the delays in the loop and uploading again. How easy is that?
I see much time to be spent playing and learning how to get the best from this. Very satsifying indeed.
Posted in Arduino, Radio and Electronics | Tags: Arduino, electronics, hack | Comments Off on Arduino Arrives
February 7th, 2010
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February 6th, 2010

Starter Kit
I’ve finally broken, and splashed out in a Starter Kit for the Arduino. I’ve ordered the kit from Oomlout.co.uk as it seems to have lots of bits along with a decent size breadboard and natty holder to fix the board and the Arduino unit itself together which should make it more stable. It also has a servo motor which I’ve never used before, although the rest of the components are pretty familiar, and which I’m looking forward to getting to grips with. The only problem is there are just too many possible projects I’d like to construct!
In other news it seems Paul and Clare are to marry in the Summer. Invite arived today so that day’s already been set aside in our diary. We’re very much looking forward to the event, and finally meeting the lady herself – all previous attempts have failed through severe diary congestion.
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February 2nd, 2010
This is really just a short note to file away for the future. Having recently discovered the Arduino, and seem many of the things it’s been made to do, I wanted to jot down a few ideas I might follow up myself one day. Real Work seems to get in the way most of the time, but with a long history of dabbling in radio and electronics and having built many gadgets, radios, remote controls and so forth, the Arduino looks like a fab way to interface with mechanicals.
So the first idea is a way to play some little bells to make tunes. I have a couple of sets of mini bells from B&Q some years ago which play a fixed set of Christmas tunes, controlled from a small box and a 12v supply. If I can interface each bell line to the Arduino using a (reed) relay [or even directly, perhaps?] I’d have an eight note one octave player. A quick look on the ‘net shows someone has made a similar bell tower from hand bells, however I’d like to be able to play more than one note at a time. Input from a text file of some sort – I’ve seen a form of music notation that might do the trick, but this needs more investigation. Ultimately I could build a multi-octave machine like a player piano or adapt a harmonium.
Second Idea: Temperature sensors on the heating system to measure use and efficiency – and combine with a gas meter reader to complete the energy consumption records via Pachube (i.e. to add the the electric consumption data).
Third idea: Talking parrot, an adaptation of an ambient orb. I have a USB parrot which only works on Win and has no recent drivers or apparent way to use in Linux/OSX – so I’m going to keep it for possible hacking in the future. Flap wings or nod head , open beak etc to relay data values of some sort. The higher the home energy use, the more the little bird will fidget.
Posted in Arduino, Radio and Electronics | Tags: Arduino, bells, electronics, hack, lights, Pachube, sensors, Workshop | 2 Comments »
January 31st, 2010
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January 29th, 2010

Shed in the snow
I’m just drinking a very pleasant, if somewhat cool, glass of home made beer. When we decided to do up the garden this year, one objective was to start brewing beer in the shed – something I’ve not dine for about fifteen years or so. Once the shed was in place, out came the fermenting bucket and barrel, and the result is a pressure barrel (courtesy of some gaffer tape to keep the safety valve shut!!) of beer for me to sip when I like. Forty pints will last a while – I seem only to manage a pint or so a week at most.
Nice day at work today – plenty accomplished, and although I had to refuse some business to tune a web site, I was able to make a few useful tweaks to the Apache configuration for performance. Stats still suggesting Movable Type rendering 500,000 page impressions a day – that’s pretty good.
Finished my performance review at the office this morning as well. Glad that’s out of the way.
I also managed to get my BT200 voip phone to ring with a converted bell sound. Not really very spectacular, but just rather neat to accomplish!
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January 28th, 2010
Much hassle trying to upgrade my fairly ancient voip phone which I use in the study connected to the Asterisk PBX. It seemed to have a very early firmware and boot loader version, which no matter how much I tried would not upgrade to Grandstream’s latest and greatest. I troubled their support ticket system for advice, and the persistent reply was that it would work in one go without intermediate versions. Not so. FAIL to Grandstream, I’m afraid.
After much searching I found a site called GrandstreamSucks.com and there were a series of earlier firmwares. I downloaded all I could, then set about seeing what could be done with these; the phone was set to use a local HTTP server for the firmware upgrades, and by this means I could follow the Apache log and see the evidence of the files being sucked up.
From the very early software versions (on my phone it was 1.1.0.5 software / 1.1.0.88 bootloader) you do seem to have to upgrade in stages. From GrandstreamSucks I used firmware 1.1.2.25 which upgraded just fine. I then chose 1.1.4.14 which also upgraded fine. THEN I used the 1.2.2.26 from the real Grandstream site, and that seems to have worked fine as well.
Now all that’s left is to test it all out properly and check the configuration is still right.
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January 26th, 2010
Very random.
Climate change: the IPCC seems to have shot itself in the foot having predicted a few years ago that all the Himalayan glaciers would be melted in less than thirty years from now. I really don’t understand how they can have come to such a dramatic conclusion without realising thy must have been so amazingly wrong unless they were simply joining the global warming bandwagon and giving politicians what they wanted to hear in exchange for funds. It’s bad enough that the Pro GW enthusiasts can’t accept that they might be wrong. Drives me mad – and somewhat irritated by some journals fanning the flames, it seems to me. Gah!
— UPDATE, 27/01/2010: The Times has an article on this very subject and which strikes me as a far more balanced attitude to how scientists should think about this subject.—
The office canteen produced Haggis yesterday. It was great.
Spent much of today looking at the conversion of www.microscope.co.uk to an MT based site. Hopefully I can sort out the problems this poses me, and discover just hpw many pages there actually are. Wget is now being run to try and get an “independent” idea of what’s there. Editor says 3500 pages, Script from SixApart finds just 980. Nice bit of feedback from the publisher, though.
We went to Grace’s school this evening to hear about the proposed trip to Little Canada (IOW) when she gets into year six. Got to find some cash, now!
Waitig for Grandstream to reply to my question about upgrading the BT200 phone firmware. 24 hours so far and no reply yet. Hopefully they’ll comeup with the goods, because random crash and reboot only with a power cycle is a bit frustrating.
Time for bed. Early shift for me tomorrow.
Posted in Asterisk, Family, General Blogging, Work | Tags: grandstream, little canada, movable type, New Scientist, phones, Work | Comments Off on Random Thoughts on Tuesday