Posts Tagged ‘Mobile technology’

The Linux GPS project has commenced!

Friday, December 7th, 2007

The Linux GPS project has been started, it’s aimed at providing useful information about Linux related GPS projects and how to get GPS devices working correctly with Linux. I have a CF based Holux GPS device and a Bluetooth/USB based Holux device, I’ll provide as much information about these as possible.

We hope to provide information on the protocols we come across and the ways they can be made to ‘play’ nicely with Linux. In the end we may develop programs to provide unavailable features to Linux users. Although there are several projects which seem interested in providing GPS support for Linux they seem to lack a central place for a user to start, a place for you to pick what you need and get everything working; Linux GPS is being developed with this in view.

www.linux-gps.org

Your support would be appreciated.

Kind regards, Robert.

Unboxing Sony Ericsson K800i.

Wednesday, October 31st, 2007

[Photo's to come.]

I’ve recently bought a Sony Ericsson K800i, it’s a nice little thing. I say thing because it’s one of those multitudinous devices which contains a camera, a mp3 player, expandability via memory cards, a radio, a basic web browser, video calling and all the rest. What’s more it can be used to call people when you’re out and about!

In short I wanted a phone which I can use (unlocked) in the States without breaking a warranty. To use my MDA Vario II I’d have to break a warranty which I intend to use within the next few months, my Vario being slightly broken. Before some clever person points out that I can use my Vario in the states without unlocking it, I want to use a pay as go SIM from the states to lower charges and I can’t do that without unlocking.

So, I went to CarPhone Warehouse and purchased one. It’s the cheapest 3G phone I could get with T9. T9 is what I’m used to from my old old phone, a nice little Sharp. So, I have a phone which suites my requirements; it provides 2G/3G for the best coverage and T9 for my comfort.

It also has a ~3mpx camera, not too bad one either. I’ve taken a few photo’s with it and give it a test in most conditions, one thing I noted was that it actually handed both the dark and near dark with relative ease. I was very surprised that it even handled flash compensation reasonably well. The camera is covered by a shutter and when you remove the cover it automatically starts the camera application, when you close the shutter it closes the application. I thought this was quite useful.

It has a music player and radio, these leave a little to be desired. The radio is analogue, but other than that quite a reasonable little device, it requires the headphones to be plugged in as it uses them as an aerial, but it doesn’t restrict your listening to them. The music player is integrated enough to prevent the two running together and it has a passable interface for using to play a track at a time.  It didn’t like my music, in fact, it seemed to hate it. It (apparently by random) truncated it’s readings of my ID3 tags, it also doesn’t allow playing by album, this is not good if you’re in the habit of using compilations.

The web browser seems OK, as does the RSS reader, I haven’t tested this to the full because I have limited credit on the SIM which came with the phone.  I’m always hesidant about web browsers on phones, the screens are small and the typing facilities are minimal. However, if such things please you I think they should be adequate for most average needs.

I’ve not tested video calling, I see it as pretty pointless but the camera on the front seems to be OK.

So there you go, that’s me unboxing it. I’ve liked what I’ve seen and found it pretty usable, the leather strap for carrying makes it feel rather like a camera and adds a bit of character, the screen is clear and the camera is of good quality. Most importantly it makes calls, if it made coffee I’d be far happier than all the gimmicks.

Here’s me, signing off, Robert.

TuxOnIce a most excellent hibernation/suspension tool.

Monday, October 29th, 2007

I started using TuxOnIce when I switched kernel’s to the kamikaze sources. I’ve been doing a few things to try and get the best power usage out of Linux and my IBM X31 possible, TuxOnIce seems to do an excellent job suspending and resuming my entire OS. Without giving it any extra kernel parameters and only changing a few options within the configuration. For those of you who haven’t met TuxOnIce, it’s the new Suspend2.

Some of you may know that I’ve recently purchased an IBM X31 and that I’ve been trying to get the best battery life from it possible. One of the things about this is not having to restart whenever you have to change a battery, hibernation as it was dubbed by the windows developers is a useful trick for this. I can wait till my battery is almost run out, hibernate, change batteries, then start up again and resume where I left off. This can be done in a short enough time to preserve a net connection and not ping out on IRC! I’ve actually considered creating a ‘blank’ suspend image which has the main core of the OS and the DE loaded already and simply resuming to that instead of ever starting a new session, the problem with that would be resuming from a different partition when I’d actually suspended. I’d also have to create a new version of this image each time I updated my kernel or certain bits of core software, this will take some thought before I decide to go into it but it does provide something for thinking about.

I’m intending to build my father a media centre, this will (of course) use a Linux core and a probably a MythTV front end. This project would greatly benefit from a suspend image booted from a CF card, in fact, it would be almost instant boot and instantly be usable from where it last was. This might be a method of producing a very fast unalterable distro, your entire filesystem could be on ram-disks and your entire operating system could be stored on a suspend image, all you’d need is an initrd image and a kernel. The entire system could be updated by a bootable dvd which simply replaces the suspend image. If anyone has any comments on this then please do leave them as I’ve become interested in the concept within the space of writing it. Before I get attacked for breaking freedom and closing an OS, it wouldn’t be closed at all, the suspend image could be disassembled and edited with absolute ease; to prevent this some for of checksumming or signing would have to be implemented and I would not support that. Tell me your thoughts.

I used to use Suspend2 when I first experimented with Gentoo a few years ago, now I’ve returned to it for my IBM X31 I’ve resumed my interest (pun not intended). Back then I was looking to completely replace windows and show my school that it was possible. Although I proved this to myself they were still cynical and blamed every problem on Linux, even when the camera refused to work on their windows PC’s. There are none so blind as the willing. I do find it both sad and somewhat frightening, people believe what they’re told by the people they believe are right; even after being shown categorical results to the opposite. I’m rambling.

Do leave my any thoughts on the suspend image based OS.

Kind regards, Robert.