Byte Sized – II (Data Science at Ola)

A few weeks ago, I attended a talk by P. Swaminathan, the head of data science at Ola Cabs, who did his M. Tech in CSE, at IIT Madras. The talk was part of a new IIT Madras technology lecture series called Tech Saloon. It was an interesting talk, which covered the data which is available…

Byte Sized – I (SciTech in Big Hero 6)

I haven’t posted for a long time…it was about time I started a new series of short articles, which I will call Byte Sized. Anything new and interesting which I learn and can be featured in a few paragraphs will be covered in this series. It should be a quick and painless way to get your…

Randomness, Creativity and Thought

This may be considered a follow up post to The Future of Computing, but I believe it stands on its own as well. To evade the death of Moore’s Law, scientists have been building innovative new computers and chips, some which extend to three dimensions and some which use light instead of electrical signals, all the…

The future of computing

The human brain is a massively parallel computational machine which consumes twenty percent of the energy your body produces, which translates to about twelve watts. By comparison, a standard light bulb consumes sixty watts of energy! It uses over one hundred billion neurons, each with about ten thousand connections to its neighbouring neurons. A relatively powerful, recent computer contains anywhere between one…

part 2: Gestures+Heli

This is the final post (hopefully) in a three-part series on projects related to my Syma S107G helicopter. In the first post, I gave a generic review of the heli, and I improved its battery life by attaching another battery and reducing unnecessary weight. In the second post, I researched about the IR protocol it…

part 1: Gestures+Heli

A follow up post, after my post about my Syma S107G helicopter. If you haven’t read that post, click here. I mentioned in my previous post that I burnt an IR receiver. The module I was referring to was the TSOP1838, which had a unique pin-out, and I was able to get it right after…

Flexing Success!

I was finally able to build my own Flex sensor at home, at a fraction of the price of commercially available ones. I quickly began developing the FlexSure gloves with which I intend to develop a physical-digital user interface that can provide real-time motion data and the corresponding actions for various uses. FlexSure gloves I…

Flexing, Sensing, Depressing

For the past few days, I have been working on a new project. The idea was to use 10 flex sensors and gloves to create a virtual reality system, or to create a sign language translator. It seems like it will be easy to code once I have all the components. Flex sensors, or bend…

Helicopter Hacking

I am extremely interested in flight aerodynamics, quadrotor helicopters and general aerospace engineering. I am a member of IITM’s International Aerial Robotics Competition (IARC) team, where I help in designing the computer vision algorithms that will run on the quadrotor to help it “see” the environment around it. The problem statement is quite interesting, you can…

The OV7670 Camera

I recently received the Arduino camera module OV7670 manufactured by Omnivision, which I had ordered on Ebay 4 days ago. It has 18 pins, with a parallel data interface. It looks like this: OV7670 camera from Omnivision It is extremely difficult to get it to work with the Arduino Uno, despite several stackExchange questions, Arduino…

Hacking an RC car

I began hacking remote controlled toys and electronics. I open their controllers and use jumper wires to connect their logic boards to my Arduino Uno. I can control their motions using code I upload to the Arduino. I bought a cheap RC car which had push buttons for motion, which meant that it would be…

Arduometer

My first electronics project in my first year was to make a cycle odometer for the Engineering Design course final project. I decided to use an Arduino for the input-output interfacing, and a magnetic switch for the periodic inputs from the cycle wheels. Other students designed disc encoders for the wheels, and some used Hall…