GolPark, Kolkata

Animated gif of a series of images of the GolPark junction in Kolkata. These images were taken from the roof of the Ramkrishna Mission, an oasis of calm, in the chaos and frenzy that is Kolkata. I didn’t have a tripod at the time, and hence the slight shake between the images.

Google+, with its new feature called Auto Awesome now automatically converts a set of 5 or more images taken on your Android device into a gif. But you can also convert a set of images (taken with another device, in this case an SLR) into a gif using Gimp. The steps are as follows:

1. Load the images into Gimp as Layers (File->Open as layers).

2. Register the layers using the Blend tool (Filters->Animation->Blend). Keep the default options.

3. Play your animation using Filters->Animation->Playback.

4. Save your animation as a gif using File->Export (save with a .gif extension and tick the As Animation option. You might also want to tick the interlace option).

Decrease the size of your gifs by downsampling (throwing away every 2nd or 3rd frame if you have a lot of images), reducing the size of your images or reducing the colour quantization or depth of your images (Image->Mode->Indexed->Use web-optimized palette).

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Animated sequence of images of St. Paul’s Cathedral in Kolkata

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Time Lapse Sydney Harbour

Time-lapse of Sydney Harbour, the Harbour Bridge, Luna Park and the Opera House.
Approximately 2200 photos from the lower concourse of the Opera House Bar were clicked between 4:24 pm and 6:00 pm on 4/8/2013 for this time-lapse.

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A Cruise Through Sydney’s Harbour

My memories of the beautiful, enchanting Sydney harbour.

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Commute to work and back

Thought I’d test my new AEE MagiCam that I got from Kogan with a video of my commute to work and back.

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Cup Hanger

Another kitchen accessory printed at home. Download it here.

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Wine Glass Rack

Printed out a wine glass rack for my kitchen. Holds and drains/dries two wine glasses. Download my design here.

Wine glass rack

Wine glass rack




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MacBook Air Stand

Printed out a stand for my MacBook Air that frees up space on my desktop. The stand allows the screen to be vertical and the keyboard inclined so it is still quite usable.

MacBookAir Stand

MacBookAir Stand

The stand frees up space on my desktop

The stand frees up space on my desktop

Download the stand from Thingiverse and print it yourself:

http://www.thingiverse.com/thing:56845

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Re-wiring the robot, sigh!

This entry is part 9 of 10 in the series Android Robot

I’m going to have to re-wire the IOIO and the 1A Dual TB6612FNG motor driver board thanks to a component fault caused by some faulty wiring.

Here is a wiring diagram of the IOIO wired to 2 DC motors through the motor driver board.

Wiring diagram between the IOIO and the TB6612FNG motor controller board

Wiring diagram between the IOIO and a motor controller board

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Enclosure for Bug’s uc + Environment Sensing

This entry is part 10 of 10 in the series Android Robot

Printed out an enclosure for Bug’s circuit boards.

Enclosure for circuit boards

Enclosure for circuit boards

Also connected the 2 IR sensors on the bumper to the IOIO board for environment sensing. I’ve got the phone’s display to change colour based on whether or not something is detected in front of either of the two sensors.
Here’s the video:

However, the motors have stopped turning. I mistakenly connected the positive terminals from the sensors to Vin on the board instead of the 3.3V terminal and that seems to have damaged something. Oh well! I’ve just ordered a replacement IOIO board and a motor driver board.

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