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Variable resistance components: Thermistors and Light dependent resistors (LDR) on a Arduino simple circuit

In the past blog post we used a potentiometer to provide a user variable voltage to one of the Analog In pin. We then used the value read from the Analog In pin to set the blinking delay of an LED. This resulted in the LED which was blinking faster and slower depending on how the potentiometer …

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Problems with Samsung u700? Let’s fix its flex flat cable!

I own a Samsung U700. In my opinion, a part from some little problems (metallic silver edge painting flaking off and the touchscreen buttons sometimes irresponsible or too sensible), I never had something big to complain about in my 9 months with it. The great stuff from this phone is definitely a great call quality, something which not all …

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My KiCAD library

I think that it could be useful for people having access to my KiCAD library. Everything is licensed using a Creative Commons Attribution-ShareAlike 3.0 Unported. You can get access to it using bzr with the following command: bzr co http://repository.varesano.net/fv_kicad_lib/ In case you don’t have bzr experience, you can get an archive with the most recent version or you can browse …

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A libre breakout board for the MS5611-01BA high resolution altimeter sensor

As a first step in the development of FreeIMU v0.4, I’m starting my first steps with the MS5611-01BA high resolution altimeter sensor. According to its datasheet, this chip looks extremely accurate as it’s capable of a 10 cm resolution in altitude estimation. I already sorted out most of its electrical connections when I drafted the first designs of …

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