New Site!

Welcome to another iteration of my website! This is the fourth website of my stuff on the internet since 1997. This one carries over most of the content from the last one, but presents it slightly differently. My aims for this version were: Keep the content and URLs the same. Don’t look terrible on mobiles etc. Don’t have loads of server dependencies on things like databases. Avoid Javascript and externally loaded cruft.
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Sam R. Cosgrave

First breath on that haunts / a clean fresh start a failure / the world is mischief. Sam R. Cosgrave is a bot masquerading as a haiku poet on Twitter. It started when a friend of mine who writes haikus made his poems available in a handy machine readable format. I made a web page that recombines the lines of his poems to make new ones with a fair bit more non-sequitur.
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Recent Developments in BBC B Hacking

BBC B running 2048 I’ve recently been experimenting at the Hackspace with UPURS and UPURSFS. These unfriendly strings of letters amount to a cable that links the BBC’s User port to my laptop via a USB to serial converter, two ROMs that go in the Beeb and some Perl code that runs on my laptop. The upshot of which is that I can access parts of the filesystem of my laptop as if they were floppies on the BBC.
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Christmas Twitter Tree Lights

I recently bought a string of 50 individually addressable RGB LEDs from Embedded Adventures and so had to decide what to do with them. I decided it would be festive if they could reflect Twitter’s current feeling about Christmas. So I started Googling sentiment analysis and quickly discovered that Stanford University’s Natural Language Processing Group has released the source and data for their sentiment analyser. When fed a sentence it outputs one of “Very negative”, “Negative”, “Neutral”, “Positive” or “Very positive”.
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Halloween Wedding Photobooth

Almost exactly a year ago I got married, just before Halloween. It seems to be fairly typical these days to have a photobooth at the reception so that guests can take photos of themselves for you. We decided ours should have a Halloween theme. What Happens Guests enter a cubbyhole and sit on the chairs at one end. The space is lit by a lamp and there’s a camera on a tripod pointing at them.
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That Wedding Playlist In Full

Dancing In The Street - Martha Reeves And The Vandellas Papa’s Got A Brand New Bag - James Brown You Can’t Hurry Love - Diana Ross And The Supremes Going To A Go Go - Smokey Robinson Think - Aretha Franklin In The Midnight Hour - Wilson Picket Knock On Wood - Eddie Floyd Needle In A Haystack - The Velvelettes Itchycoo Park - Small Faces Brown Sugar - The Rolling Stones Lola - The Kinks Paperback Writer - The Beatles Ride A White Swan - Marc Bolan & T Rex Rebel Rebel - David Bowie Heart Of Glass - Blondie In Between Days - The Cure This Charming Man - The Smiths Dancing Queen - ABBA Jumpin’ Jack Flash - The Rolling Stones (Edited Wayne Carr intro to Motherbanger from Chris Morris’ Radio 1 Music Show) Here Comes Your Man - Pixies Something Changed - Pulp Friday I’m In Love - The Cure Blister In The Sun - Violent Femmes Panic - The Smiths Queen Bitch - David Bowie Debaser - Pixies Seether - Veruca Salt Razzmatazz - Pulp Hey Hey 16K - MJ Hibbett & The Validators Lipgloss - Pulp Shut Up And Let Me Go - The Ting Tings Babies - Pulp Disco 2000 (Nick Cave Pub Rock Version) - Pulp Buy Nothing Day - The Go!
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TwitBeeb

TwitBeeb Photo by John Honniball TwitBeeb is a BBC B microcomputer (vintage 1981) from which you can Tweet. The Beeb itself was my main computer until 1994, I taught myself to program on it. A few years ago I pulled a rather scuffed up BBC out of a skip at Sussex University and took it home. Inside it had an add-on ROM board with several programs in ROM chips including a serial terminal emulator called Termulator.
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Barometric Pressure Readings With A Bus Pirate

Bus Pirate and SCP1000 I decided to learn how to use my Bus Pirate (v3) by getting it to talk to an SCP1000 chip that I’ve had for a while but not got round to using. The SCP1000 is a very accurate barometric pressure sensor with an SPI interface, mine is on a handy breakout board and came from Sparkfun. The datasheet has the details.
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Certificate Expiry Checking Script

Here’s a script I wrote a while ago for checking a bunch of domains to see if their certificates have expired using openssl. Just add your domains to the @domains list. At work we have a cronjob that does this every day: checkcerts -d 31 | mail -e -s"SSL Certificates Expiring Within a Month" systems@... #!/usr/bin/perl -w # checkcerts # Barney Livingston 2008-11-18 use strict; use Date::Parse; use Date::Format; use POSIX qw(floor); use Getopt::Long; my $days = 9999999999; #about 27 million years should be enough my $help; GetOptions( "days=i" => \$days, "help" => \$help ); if ($help) { print <<"END"; Usage: checkcerts [options] --days -d <days> Only show certificates due to expire within <days> days.
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