Tuesday, September 24, 2013

Giving a spin to Ubuntu Touch (Developer Preview)

After flashing custom Android ROMs over and over again and trying them out, I thought of giving a little bit of variety by trying out Ubuntu Touch.

The developer preview for the Ubuntu Touch is out, and I got hold of the version for the Samsung Galaxy S GT i9000. Instructions were pretty straight forward to run on a rooted Android mobile running the ClockworkMod recovery as outlined under the following link;

http://www.technostall.com/update-galaxy-s-i9000-with-ubuntu-developer-preview-custom-rom/

Few minutes of work, and voila! There is Ubuntu!




I like what they've done, and I am a fan of the no button - all gesture approach. It has a slight learning curve, but all in all, I find it interesting. The main difference I saw with content is how everything seems to be put out rather than hold back through a lockscreen and a homescreen the user is supposed to fill up. I'd like that customizability, but the way Ubuntu has done it is not bad either. It seems to lie in between iOS and Android in that sense. Ubuntu Touch uses the edges of the screen for some gesture inputs, and this might annoy some - specially if you are using a case with beveled up edges. The general functionality looks fluid enough even on my old phone, and I've seen videos of Ubuntu Touch running on newer devices like the Nexus 4, really fluid.

Looking forward for the official release in mid October, and a growing app store for Ubuntu Touch!

Note of appreciation for my dear S : Mobiles have grown tremendously over the last 3-4 years, but I am so impressed by the legendary Galaxy S which paved the way for the Samsung Galaxy lineup and being over 3.5 years with me, this baby is still running solid! My phone cannot compete at all with the latest phones, but the sentimental value I have for it is so much, and it gets me through my day!!

Monday, September 23, 2013

[Video] - DIY GoPro Mount Construction, Mounting and Testing

Keeping the promise from the last post, here is a video containing the construction, mounting and a small real world usage sample. Yet to do some high speed testing on a highway.

Enjoy!




Credits:
Videography : Janani Amarasekara (My Wife) with the Nexus 4
Soundtrack : Harmful or Fatal by Kevin MacLeod is licensed under a CC Attribution 3.0.
http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100210.

Tuesday, September 10, 2013

DIY GoPro Hero 3 Car Mount


The GoPro camera is one of the most amazing action cameras around, and for the craze of it I got myself a GoPro Hero3 Black Edition. Now, having the camera is just a part of the story. To get the best out of it, a multitude of accessories are needed to attach it to different things.

GoPro and accessory manufacturers know this, and that is exactly why all those accessories go for a relatively steep price. So, in order to save some bucks, and mostly for the fun of it, I thought of creating some useful mounts for this. My good friend Sampath and I had a chat about this and thought of doing a car mount and a steady cam mount. While being a driving fanatic myself, my first goal was to get the car mount done.

So, here goes how I did it – which is definitely not the only way of doing it.

Main design decisions:

  • Most practical attachment for the car - The obvious option is to get a suction cup mount, which helps attach it to any relatively flat and smooth surface – which a car has plenty of! This gives me the flexibility to attach to multiple parts of the car with a lot of ease.
  • Strong grip to the car - The most important fact is to have a proper grip to the surface to avoid the entire apparatus coming off during a drive and destroying the camera and everything else. Therefore, I picked one of the heavy duty industrial suction cup mounts used in to grab glasses – with a load rating of 200 lbs! (I picked the double suction grip. A double swivel grip would be better to support curved surfaces too, and a high rated single cup mount also would have worked as well)
  • Attaching the camera to the mount – While attaching the camera rigidly to the mount, it is also important to get 3-dimentional flexibility. The 3-point mount already available with the GoPro already solves part of this. Additionally, I got the tripod mount for the GoPro, and decided to use an adjustable screw to attach the tripod mount plus 3-point mount. Using a butterfly nut allows me to quickly do any rotational adjustments.

Stuff I used:

  • 1 industrial suction cup grip [REF]
  • GoPro tripod mount [REF]
  • 1 ¼" 20 threads per inch screw of 2.5” length
  • 1 matching butterfly nut
  • 1 metal washer
  • 2 rubber washers

Steps (Piece of cake!):

  • Decide on the best place to attach the mount on the suction cup grip and drill a ¼” hole
  • Screw in the butterfly nut in the reverse direction (this is to use the nut as an adjuster plus fastner in one go)
  • Send in the metal washer and a rubber washer (metal washer allows for the easy tightening of the nut, and the rubber washer grips well to the mount without damaging it)
  • Run the screw through the hole in a direction opposite to the faces of the suction cups
  • On the opposite end of the screw, send in a rubber washer (This helps good grip between the suction cup grip body and the screw mount)
  • Screw in the GoPro tripod mount tightly to the end of the screw.
  • Tighten the butterfly nut until it strongly fastens the tripod mount to the suction grip body.
  • Now simply attach the 3 point mount and GoPro camera to the GoPro tripod mount.
  • Voila! You are ready to roll!
 



Note:

  • When you attach the suction cup mount to the car, choose the flattest surface possible to ensure good suction grip
  • Make sure the surface is clean and shiny to ensure the suction cups remain airtight
  • As a failsafe, always run a cord from the mount to some part of the car to cling on to the camera in case the mount comes off during a fast drive. 
  • DISCLAIMER : This approach is to be followed at your own risk, and I am not to be held liable for any damage caused during your DIY project, if you decide to follow this approach.  

Out in the field:

Here are some images of the mount being attached to the car. 












Future improvements possible:

  • Using a double swivel cup grip or a single cup optionally
  • Modifying the double cup grip I used to give a little bit of play for the suction cups to support slightly curved surfaces.


This was done well under $20.00, and I am sure some folks can do this even cheaper as I had to buy almost everything for this. Even this cost is way under the cost of off the shelf accessories, and works just fine.


I will be uploading a video on the steps of assembling this mount, as well as some footage of practical usage in few days. Looking forward to making the steady cam mount…! Stay tuned!

UPDATE : The video promised above is available in the post at http://aravindad.blogspot.com/2013/09/video-diy-gopro-mount-construction.html