Author: Julian
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Calibrator: An Arduino library to calibrate sensors hooked to analog inputs
Once you get past your first few projects with the Arduino, you soon realize that the calibration method they show on their webpage is just a sample and cannot be used with many sensors without polluting your code with a ton of variables. So, here it is. My own take on sensor calibration library. You…
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Hacking O’Reilly’s “Fluent Conference 2013 ” video download page
The Fluent Conference 2013 videos were out and O’Reilly was offering a nice 50% discount to early purchasers. I went to their website and made the purchase. When I looked at the download page I realized that no videos were linked to my Dropbox account (like O’Reilly does when you purchase a book from them).…
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Learn how to read and write binary numbers in 5 minutes.
Over the years I’ve been asked to explain this to many people and most of the times as I was done explaining this, people would say “Huh, I thought it was harder!”. I think the reason is that when people are taught how to do this they are shown the math behind it and they…
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PCB Comparison: OSH Park vs. iTeadStudio
I took my 8 RGB LED Controller prototype and decided to try to make a PCB of it (my first attempt at a PCB, that is). Most people at the Arduino forums had recommended I do this in EAGLE but they warned me that the learning curve was steep. So I tried doing it in…
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8 RGB LED Controller
UPDATE: I’ve now made a custom PCB out of this. This is my first experiment with Arduino. Like most people starting out with Arduino, I wanted to make stuff blink! So after finishing up the Arduino Starter Project Book I started hooking up LEDs to my Uno’s outputs. I very quickly ran out of outputs…
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Long exposure shots
I recently bought a shutter release for my Canon 450D. This allows me to use the BULB mode on my camera and shoot very long exposures. I took it for a spin yesterday and this is what I came up with. These were taken in Boston, MA where Mass Ave meets Westland Ave. Some of…