www.gisvold.co.uk - Ruby

Ruby Mail gem updated to delete emails

tor — Sun, 11 Jul 2010 07:04:45 +0000

The Ruby Mail gem has now been updated to include a "delete" method - even if it is for all emails on the server - there is no way of individually deleting emails so far.

Except for this - a excellent gem.

Mail is an internet library for Ruby that is designed to handle emails generation, parsing and sending in a simple, rubyesque manner.

The purpose of this library is to provide a single point of access to handle all email functions, including sending and receiving emails. All network type actions are done through proxy methods to Net::SMTP, Net::POP3 etc.
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Technorati Tags: Array Ruby

A centralised store for house automation data

tor — Sun, 27 Jun 2010 09:26:32 +0000

In my hobby work on house information/house automation for our house I needed somewhere to store all the most recent data collected from various sensors and systems, in such a way that it would be accessible from any computer on our extended network. And I chose to use Memcached - as it is running purely in memory, and by its very nature is fast and accessible over the network.

It's data is not persistent after a crash - but I had no need for this, as I collect data very frequently, and persistence was not needed.

Here is a recent output from a dump of data stored in memcached :

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Protocol for sending data to a Jeenode

tor — Mon, 03 May 2010 12:37:21 +0000

For my home automation project I needed a general purpose protocol to send data (and text) from a server to a Jeenode:

- First to control a multi-line LCD display

- To control "things" connected to a Jeenode remotely (and wirelessly of course)

The first project is to control a set of fans mounted in a boiler cupboard that gets way too hot occasionally, and to control a display on top of the cupboard.

The temperature is already reported to the server from another Jeenode running a unmodified version of the "ROOMS" sketch reading from a temperature and humidity sensor (SHT11).
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Technorati Tags: Arduino Array electronics Jeenode Open source Ruby

Wattson power meter

tor — Sun, 21 Mar 2010 20:11:06 +0000

I've created a page for sample code for accessing data from the Wattson energy meter.

Technorati Tags: Array development electronics Open source OsX Ruby This website

Ruby's Mail gem

tor — Wed, 17 Mar 2010 15:00:13 +0000

I use a very nice Ruby gem called "Mail" to read emails from a POP3 account.

So far so good - but the documentation is, to put it mildly, somewhat lacking.

As a good example I'm trying to find out who the email is from - and I had to do a complete "hit-and-miss" test with large numbers of variables until I found one that worked - and it turns out to be :

puts post.header[:From]

as none of the ones in the documentation worked.

Technorati Tags: Array Ruby

Chumby as a monitoring display

tor — Sat, 26 Dec 2009 19:31:12 +0000

One of the main reasons for getting a Chumby was to use it as a display for the various sensors inside and outside the house.

Here are some pictures showing the Chumby displaying graphs from internal monitoring of external temperature and electricity usage (original data from a Wattson device)

(Click for larger)
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Technorati Tags: Array OsX Ruby this server This website Web

My Chumby and the Arduino

tor — Sun, 20 Dec 2009 11:06:56 +0000

The house monitoring/automation system "project" has been slowly taking shape over 2009, and the basic infrastructure is in place.

Displaying the results in easily digestible form is to me one of the more difficult parts, as distributed displays are still something I have not managed to sort out.

So for Christmas I asked for a Chumby - and due to a slight problem with transport damage to the case I was allowed to open it long before Christmas itself, so I have ad time to experiment with the use of the Chumby for a few weeks now.
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Technorati Tags: Arduino Array development electronics Ruby

Our house is twittering

tor — Tue, 17 Nov 2009 20:36:06 +0000

As with all modern houses ours has at long last started twittering

(Click for larger)

it's of course called "gisvoldhouse" and so far tells you the temperature and humidity level in our garage, and the outside temperature.

More to come - courtesy of a Arduino connected through a Ethernet shield, and a piece of Ruby software running on our webserver.

Technorati Tags: Arduino Array development electronics Ruby this server

Arduino and Ruby

tor — Tue, 07 Jul 2009 07:53:57 +0000

As I am trying to get started with Ruby at the moment this is extremely interesting :

Arduino IDE Meets Ruby
Scripting languages have evolved a lot in the recent years. Ruby in particular, has had such a significant impact, that there are entire teams dedicated to maintaining it's visual identity across the web.

Designed by Tom Schaub is a widely used logo for the ruby programming language.

Sporting some flashy ruby icons, is the Scripting tab in the Arduino IDE. Upon startup, a listing of your ruby script files is generated from your Sketchbook directory.
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Technorati Tags: Arduino Array development Open source Ruby

Rack 1.0 for Ruby

tor — Sun, 03 May 2009 07:33:48 +0000

The announcement for Rack 1.0 :

Hello,

Today we are proud to release Rack 1.0, which was close to almost be
codenamed MiddleWarem4Ever.

= Rack, a modular Ruby webserver interface

Rack provides a minimal, modular and adaptable interface for developing
web applications in Ruby. By wrapping HTTP requests and responses in
the simplest way possible, it unifies and distills the API for web
servers, web frameworks, and software in between (the so-called
middleware) into a single method call.

The exact details of this are described in the Rack specification,
which all Rack applications should conform to.
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Technorati Tags: Array Ruby Web

Excellent outage notification from Tupalo

tor — Sat, 28 Mar 2009 20:52:04 +0000

I did enjoy this outage notice from tupalo.com :

Technorati Tags: Array Ruby Web

Our house on Twitter

tor — Sun, 01 Mar 2009 21:47:02 +0000

http://twitter.com/gisvoldhouse now points to a Twitter from various sensors in and around our house.

The starting point is very simple - it just reports (every hour) the temperature and humidity in our garage, so not much to get exited by/
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Technorati Tags: Arduino Array electronics OsX Ruby this server This website

Twitter4R -Ruby Project for Twitter

tor — Sun, 01 Mar 2009 18:25:50 +0000

As I am still learning Ruby I decided to put my sensors in the Garage (a Arduino project - more about that elsewhere on the blog) on Twitter.

And after a false start I found the excellent Twitter4r project for Ruby which made this extremely easy - so hereby recommended:

Twitter4Rv0.3.0
The Ultimate Open Source Ruby Library for the Twitter REST API
Follow Twitter4R on Twitter => http://twitter.com/twitter4r

Twitter4R News
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Technorati Tags: Array Ruby

Running Ruby Programs on the Mac OS X Apache Web Server

tor — Mon, 23 Feb 2009 22:20:32 +0000

And a reference to a article that shows you a very easy way to serve your first Ruby programs through your Apache webserver:

Running Ruby Programs on the Mac OS X Apache Web Server

The Mac OS X operating system includes a pre-configured Apache web server and also includes the libraries need to run Ruby. Thus, Ruby programs can be run without any configuration changes to the Apache configuration as long as the scripts are placed in the correct location and given the correct file permissions.
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Technorati Tags: Array Ruby this server

Running mod_rails on Leopard (OSX 10.5) | Ruby Zone

tor — Mon, 23 Feb 2009 21:45:33 +0000

The following is a short excerpt from a article on how to install mod_rails - extremely useful

Running mod_rails on Leopard (OSX 10.5)
Submitted by danielwanja on Fri, 2008/07/04 - 5:56pm

1.gem install passenger

2.sudo passenger-install-apache2-module
The Apache 2 module was successfully installed.

Please edit your Apache configuration file, and add these lines:
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Technorati Tags: Array Ruby

I'm trying to learn Ruby On Rails

tor — Sun, 22 Feb 2009 22:00:09 +0000

I have (this weekend) been busy trying to learn Ruby-on-Rails, or rather so far I've just been trying to learn the basics of Ruby.

And I must say I am truly enjoying the experience so far - especially as I have a fondness for object oriented languages, and especially ones that can be run both from the command-line and as a "proper" web language.

All I have managed to do so far is to read the output from my Arduinio in the garage, and parse this so I can read all the various inputs and outputs of the various sensors I have there.

Not bad.

Technorati Tags: Array OsX ramblings Ruby this server

Ilana: chucking out all the clothes I wore at The Sun. There's quite a lot. (via Twitter)

tor — Tue, 03 Feb 2009 19:28:42 +0000

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Technorati Tags: FriendFeed Ruby

Ilana: @justin020 :( (via Twitter)

tor — Tue, 03 Feb 2009 19:28:21 +0000

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Uldis Bojars: Thunderbird - ??? instead of cyrillic chars (via Flickr)

tor — Tue, 03 Feb 2009 18:47:32 +0000

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Technorati Tags: FriendFeed Ruby

Ilana: @hollyseddon You heard it here first!!!!!!!111!!!!1! OMG!!! BEATBOX!!! (via Twitter)

tor — Tue, 03 Feb 2009 17:04:23 +0000

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Technorati Tags: FriendFeed Ruby