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Connecting a programmable chip to a remote Controlled Car September 11, 2009

Posted by GuySoft in Crictor, Electronics, Hamakor, ITU, linux, open source, programming, wireless.
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18 comments
Car and the controller breadboard

Car and the breadboard

Hey all,

I have been playing with electronics the last few days, and I thought I might show you the outcome.

I basically took a remote controlled car, and connected it to a 16F84 programmable chip, and now I can control the car using C code.

Although I am using a car in this guide, you should be able to close and open any kind of switch. Anything under 15 volts.

For people who have don’t feel like reading all this (and also for those who do), here is an action-packed video of the outcome:

After you saw that, here is how I did this.
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Astrophotography Using Canon Camera’s Hack Development Kit August 16, 2009

Posted by GuySoft in Astronomy, Crictor, Hamakor, ITU, diy, linux, open source, programming.
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9 comments

CHDK booting

Hi all,

I am going to explain here how I managed to use the Cannon open source hack development kit , known as CHDK, to photograph stars and even create neat movies of the stars motion.

It all started this Monday, I was lucky to see that there is going to be Perseids meteor shower, a day in advance. So I had time getting the code ready before it was too late. I thought I would go somewhere next to Jerusalem and photograph, but in the end, friends of mine (Shy and Anna) from the Israeli Astronomy Association, which I am part of, told me they are going down south to the dessert, far away from light pollution, to take count of the meteors for the IMO. So I joined him, and my data is also available.

Before all the technical stuff, here is a video I made that shows you what this all comes to:

Now back to CHDK, and how this was done.

What is CHDK? And how do I install it?

CHDK is a firmware addon for Cannon powershot digital cameras. It supports most of them, mine is a simple powershot A590, costs to date about 700 NIS. Moreover, since its an addon, it will not void warranty, and can’t damage your camera. It has a lot of features (including games and an e-book reader!).

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How to build “cantenna”, a wave guide antenna out of a coffee can November 27, 2007

Posted by GuySoft in Crictor, Hamakor, cantenna, diy, linux, open source, wifi, wireless.
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14 comments

This is really a translation of a post I wrote in Hebrew out of Linmagazine.

Here is my own DIY guide to build a waveguide antenna. This antenna will dramatically boost your wireless connection to a specific direction, enabling connectivity to great distances.

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