Snafu Blog

July 20, 2009

Linksys SPA-941

Filed under: Asterisk, Technology — Ian @ 22:15

I’ve been playing around with a SPA-941 today, integrating it with my asterisk system (more on that later). It’s a really nice SIP phone, that beats the hell out of the Mitel phone I use at work and costs half as much money. Mind you, asterisk does a lot more than the Mitel exchange but that might be because the firmware doesn’t seem to have been updated for a while…

The SPA-941 supports four lines with the latest firmware, though I’ve yet to think of a use for three of them! Call quality is excellent, much better than what I get using an analog phone through a PAP2T adaptor. I’m going to play with some of the more advanced bits, like getting its directory to sync with LDAP when I get more time.

The best bit of the SPA-941? It comes with the 24 ringtone, a bonus of being part of Cisco!

July 19, 2009

All change

Filed under: Technology — Ian @ 12:14

It’s been a long time since I blogged anything, mainly because life with two small children doesn’t leave a lot of free time! I’ve recently been sorting out the snafu.org.uk domain to move it’s hosting and so it seems like a good time for a bit of an update.

For quite a few years snafu has been hosted by Dreamhost, who are an excellent hosting company, but with the change in exchange rates >$100 a year for hosting was becoming expensive. I also barely used most of the features they provided and the fact I’ve now got a small, low power consuming server at home it meant it really was a waste of money.
This means I’ve taken the route many people have and outsourced various bits and pieces to the cloud :)

The email for this domain is hosted for free by Google Apps (and you of course get the calendar etc. etc. thrown in). This blog is hosted by wordpress, which means I don’t have to keep patching it up to date. A small fee means I can use a custom URL. Any bespoke web stuff, of which there is little, can be hosted on my home server. All in all this means a saving of just under $100 a year, which is pretty good.

June 8, 2007

Streaming media at home

Filed under: Technology — Ian @ 19:25

Whilst I’m enjoying my time at home with Claire and Daniel I’ve also managed in the last couple of days to have a go at a couple of things I’ve been meaning to do for a while (in one case for about 3 years!). These enable us to watch things we’ve recorded on our PVRs virtually anywhere, though mainly it’s so we can watch TV in different rooms of the house without having to mess about with cabling or those TV sender boxes. First up we have…

Slingbox

This is a rather neat box that you plug in to the piece of equipment you want to “sling”, connect it up to your router, install the player and away you go. The quality is excellent and it cleverly optimises the quality on the fly depending on your network connection. Running on my local wireless network the picture quality was very close to that on the TV. It usually takes a few seconds to build up a buffer, optimise and start streaming but after that there were no audio or video dropouts at all.

You control your remote piece of equipment using a virtual remote control, which looks exactly like the real one. You have to attach a couple of IR blasters to the equipment which is a shame as they look a little naff. It’d have been better if you had the option of using an internal blaster like in the Tivo. There is a slight pause in changing channels etc. but that’s to be expected. It’s certainly usable enough that setting up recordings away from home is possible.

The only downside really is that as it’s controlling the box directly you might end up annoying someone who is trying to watch a program in front of the TV. It’s also only streams to one client at a time due to copyright/licensing reasons which is a little annoying. All in all though I’m very impressed.

Once I had this working it got me thinking about the Turbonet card I had in the study and so I decided to move on to project two…

Networking the Tivo

I bought the card quite a while ago, not long after we got a Tivo. At the time I was too scared to install it in case I broke the Tivo as we didn’t want to be without it. We now use a Sky+ box mainly so I didn’t mind having a go with installation.
It actually turned out to be a doddle, with the card slotting in easily and the software install just worked. I connected it up to the network and was amazed to get a bash prompt without any further fiddling :) It’s currently connected via a slightly eccentric wireless bridge which took much fiddling to get working. This is probably my own fault for buying a cheapy one that’s designed for connecting Xboxs rather than a proper bit of networking equipment :) Also the Tivo is in the kitchen (as this is where our other Sky box is) and this means the wireless signal has to go through the outer wall of the house which consists of a few feet of flint/bricks/rubbish which isn’t the best for wireless conductivity. This means that I can do everything but streaming and video extraction over the wireless network, currently I extract video by my laptop in directly and using a batch ftp program. Once the Sky box is moved in to the main part of the house it should be a bit better.

The absolute killer app that I installed on the Tivo, and the thing that is really making me consider using the Tivo much more is TivoWebPlus. This gives virtually full control of the Tivo via a web interface, making it a doddle to set up Season passes, search for programs, manage your Now Showing, in fact, pretty much anything. I’ve put some screenshots below showing some general usage. Using the Tivo again has reminded me how much the Sky+ box sucks, especially when it comes to the EPG. It’s great to be able to search easily and set up season passes that persist rather than vanishing if the show isn’t on for a week which is what happens on the Sky+.

Sky+ does have dual tuners though which is the main advantage of it, though it is tempting to pick another cheap Tivo up from Ebay and use them instead :)

TivoWebPlus main menu

TWP Main Menu

Channel guide with hi-lighting

Channel Guide

Tivo Information

Info

Now Showing

Now Showing

April 23, 2007

Wardriving again

Filed under: Technology — Ian @ 22:49

Partly prompted by getting a shiny new TomTom bluetooth GPS recently, I thought I’d fire up Wififofum on the way home to see what it found. It’s been about a year since I last did this and plotted the data and it was fairly interesting to see the difference. There are a *lot* more access points out there today, and more now have WEP turned on. Shipping them secure by default must be helping :) Of course the ones with WEP turned off may be using some other security, but if the SSID is default I’d guess not :)

Last time I did this I plotted the results using google maps. My code seemed to have broken over the last year so I decided to try the Microsoft Live mapping api. I was pleasently suprised to find it much easier to use than the Google one, and it seems to render the maps quicker as well :) I’ve also done things properly this time and uploaded the data into a database and made it easier to import data. The prod-development AP with no WEP outside of the Hornby factory might be interesting :)

The map is here for the interested.

February 1, 2007

Syncing XDA Exec on Vista

Filed under: Technology — Ian @ 18:02

I installed Vista on my work PC recently and was annoyed to find that my PDA didn’t want to sync. It seems that activesync has been killed off in Vista and replaced with Windows Mobile Device Center. This would be fine, but the version that ships with Vista seems to do bugger all and would only let me sync media files. Which is useless as I hate Windows Media Player.

Anyway, after more googling today it seems you need an update from Microsoft (which they’ve only just released) to actually get it working. I installed that today and I’m syncing properly again!

May 12, 2006

Sky+ Initial Impressions

Filed under: Technology — Ian @ 06:49
Yesterday we had Sky+ installed. This wasn’t without a certain amount of trepidation as we’ve been using a Tivo for a couple of years and it’s been 100% reliable. The Sky+ boxes (especially the Amstrad ones) have a bit of a reputation for dodgyness. So why did we change? Partly because we were conscious that the Tivo is getting on in years and so a replacement of some kind would need to be found sooner or later. I did consider building one but discounted this as it works out to be pretty expensive if you want a nice, quiet shuttle PC and I kind of like the idea of being able to get someone else to come and fix the box if it breaks rather than having to do it myself with a homebuild :) So, how is the box so far? Initially we’re very happy with it. We ended up with one of the new Thomson boxes (incidentally the same company that built the Tivo in the UK). Seems okay, though people have reported trouble with the 160GB boxes that Thomson make (maybe this is why you can’t get them anymore!). So, what are the pros and cons for the Sky+ box?

Pros

  • Dual Tuner – Record two channels at once (or record one and watch one). Tivo only had a single tuner
  • Faster channel changing – It’s instant! The Tivo used an IR blaster to control the Sky box so it took a while :)
  • Planner – The Sky+ planner shows the programs you’ve recorded and the ones it’s going to record in one place. On the Tivo it was more fiddly to find out exactly what the Tivo was going to record (and sometimes the Todo list lied :) )
Cons

  • Noiser disk – Though I had modded the Tivo with an ultra quiet 160GB disk so it’s not really the Sky+s’ fault
  • TV Guide – Why or why can’t I search for a program? I can already enter one letter to skip to the part of the guide, it really wouldn’t be difficult to extended this to multiple letters.
  • Series link – Not as clever as the Tivo season pass as it cancels the link if it can’t find a program in the 7 day EPG. (and why 7 days? 14 seems more sensible).

So in the whole, not a lot in it at present. It remains to be seen whether the hardware holds up though :)

March 5, 2006

Wardriving is addictive :)

Filed under: Technology — Ian @ 11:30
I’ve added a few more APs that I detected to the map and I’m now using my own simple code to generate the map rather than going out to another site to generate them. At some point I plan to add a table showing some summary data and a breakdown of manufacturers (gleaned from the MAC address), though this will have to wait as I have a room to decorate :) If anyone wants data they have collected added to the map, just email it to me, preferably in the .txt format the Wififofum saves as (just tab separated). At some point I’d like to have a submit form so people can upload data to be automatically included by work on the house precludes much work on this :)
Though quite a few sites already do this, none I’ve found seem to use google maps which is a shame as it looks a lot nicer than most of the icky maps around :) .

March 2, 2006

Setting up a Bluetooth GPS to work with Tomtom on WM5

Filed under: Technology — Ian @ 21:14
Recently I bought a new PDA and a bluetooth GPS to go with it so I can use Tomtom without the huge mess of wires that my current GPS setup has. Getting it going with Tomtom5 has been a bit of a grind as things have changed quite a bit in windows mobile 5. I’ve summarized the instructions that I found in various places on the Internet below as someone else with a xda exec and tomtom with a bluetooth GPS may find them useful (and save some google time!) :) 1) Install Tomtom
Copy the cabfiles from the CDROM to your PocketPC and doubleclick on them to install. There are four of them.2) Activate the hidden GPS settings thingum
Fire up a registry editor (eg http://www.freewareppc.com/utilities/phmregistryeditor.shtml )
Go to: HKEY_LOCAL_MACHINE\ControlPanel\GPS Settings
Delete the DWORD marked “hide”
Add a DWORD called “Group” and give it the value of “2″ (decimal)
The GPS panel will now show up in your connection settings.

3) Serial port magic (this is the special bit!)
1. Establish a bond with your GPS and select the checkbox for serial access.
2. In BT, select the OUTGOING port to 8.
3. In the GPS control panel, select the GPS program to 0 and make sure that the hardware one, is set to None.
4. Start TT5 and the GPS settings, select another bluetooth GPS, and you will see COM 0 free. Select COM 0 and close TT5.
5. At the GPS control panel again, now select COM 8 (before we set it up at 0).
6. At BT: select OUTGOING port to 0.
7. Back again to GPS control panel and select NONE.
8. Finally start TT5 and it should connect automatically. Wait for a couple of seconds and click the GPS settings and you should see it has connected.

The original post is here, I’ve copied it across in case it disappears at some point :)

Another thing I’ve been playing with is Wififofum which is basically a wardriving tool. It links up with your GPS so you can make funky maps of detected wireless accesspoints. One I made while driving round thanet is here. Shows how popular wifi is getting now!

November 17, 2005

Setting up OSX + Razr V3 + Orange GPRS

Filed under: Technology — Ian @ 18:41

As I sometimes travel a bit I decided to setup my iBook and phone so I could use GPRS on the move (and rapidly accumulate huge debts due to the cost of GPRS traffic) :) Now setting up my old Ericsson was easy and took about 2 minutes, my V3 has proved slightly more tricky so I’m bunging up what I did on here.
This is partly to jog my memory in a year when I’ve wiped the settings and it might help someone else. These instructions are a mixture of various guides I found on the net.

The instructions assume you have GPRS enabled and working on the phone and you have paired it with your computer.

  1. Download the Motorola modem scripts here , unzip and bung Motorola GPRS CID 1 in /Library/Modem Scripts
  2. Open up Network preferences and select Bluetooth
  3. In PPP set the Telephone Number to be orangeinternet
  4. In TCP/IP select manual configuration. Set the IP to be 0.0.0.0 and the DNS server to 158.43.192.1
  5. In Bluetooth Modem, set the modem to be Motorola GPRS CID 1
  6. Apply the changes and dial it up, voila!

Nice and easy. Still, only took 30 minutes of googling :)

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