I made a LASER projector with DC motors. This can display only circular forms. I wanted to make one that can display vector graphics. There is an instructable to make these from speakers. I am also trying that but my setup has a lot of distortion.
In this alternative I have used the read head...
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I have been facing lot of issues with so many hookup wires running between the breadboard and the controller board. A small shake at times dislodges the cables and things stop to work. This inspired me to make hookup cables which do not get dislodged with small shakes and movements.
This is what it looks...
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My first obstacle avoiding bot based on the tutorial by Community of robots.
This is my first one and helped me learn a bit about sensors, feedback and servo operations. One difference in mine is the use of IR proximity sensor which I had lying around instead of the Sharp distance sensor.
This one does not...
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I was fascinated by LASERs when I first went to IIT Kanpur during my school days. Since then I have been reading / playing a lot with LASERs. My first one was a LASER trip wire and then a LASER pattern generator. It all was around 10 years back. Having recently acquired an Arduino...
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I have been waiting to play with embedded programming since and recently ordered an Arduino. I tested the spare LCD and displays with the normal tutorial commands and went step by step remeber the thing about slow and steady!
I want to build a vector LASER projector and a quadrocopter someday but that is too...
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On the last manned space shuttle, Atlantis, NASA sent two Nexus S phones along for the ride as part of the STS-135 mission. The goal is to use Nexus S on the International Space Station to explore how robots can help humans experiment and live in space more efficiently.
NASA is using Nexus S...
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The Kindle edition of the Guardian. Photograph: Graeme Robertson for the Guardian
he Guardian and Observer Kindle edition is now available for download seven days a week in the UK, US and more than 100 other countries. It carries the content from that day’s newspaper, including all the...
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First you need a home network — wired or wireless – and you’re ready to get started. That’s because DLNA Certified devices today connect, discover and communicate with each other over a home network, like the one you might already have for sharing your broadband Internet. (There might be other ways to connect in...
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You already know something about digital living. There’s the TV and digital video recorder in your family room. (And another set in your bedroom.) You have a PC and digital printer in your office, along with a network attached storage device. And you’ve copied all your music onto your portable music player and haven’t...
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The IT industry is prone to get enthusiastic about emerging technologies. In many cases, this has the positive effect of driving support for technologies that go on to make a tangible difference to business performance or, in some cases, people’s lives.
But by the same token, this enthusiasm sometimes has the unintended consequence of...
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