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Kukulkan Mayan Temple

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Written by Paulo Administrator Paulo Administrator
Category: Theme Galleries Theme Galleries
Published: 30 April 2016 30 April 2016
 
 

Mayan culture is fascinating to me. I find the elegance of their buildings, particularly the temples in form of pyramids, something to admire and explore. In this gallery, I post a selection of images from the great Kukulkan temple in Chichen-Itza.

 

 

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LC Low-Pass Filter Analysis in R

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Category: electronicsanddiy electronicsanddiy
Published: 30 November 2014 30 November 2014
 
 

LC Low-Pass Filter Analysis using the open-source computing language R .

 

 

 

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Camera Recording Monitor Using Current Sense Circuit

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Written by Paulo Administrator Paulo Administrator
Category: electronicsanddiy electronicsanddiy
Published: 22 March 2016 22 March 2016
 
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How to make a camera recording monitor using a current sense circuit.

 

 

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Canon FD 50mm f/1.4 lens with the Sony NEX

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Category: photography photography
Published: 30 August 2014 30 August 2014
 
 

My review of the Canon FDn 50mm f/1.4 adapted to the Sony E-mount (NEX) mirror-less camera.

 

 

 

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Olympus OM 200mm f/4 lens versus Canon EF-S 55-250 IS

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Category: photography photography
Published: 03 May 2013 03 May 2013
 
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In this article, I compare an "old" Olympus OM Zuiko 200 mm lens with a modern Canon EF-S 55-250mm IS lens set at 200mm.

 

 

 

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Transistor Amplifier Calculator

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Category: electronicsanddiy electronicsanddiy
Published: 03 February 2013 03 February 2013
 
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An Excel-based transistor amplifier calculator.

 

 

 

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My Lab Tour

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Category: electronicsanddiy electronicsanddiy
Published: 27 January 2013 27 January 2013
 
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Welcome to the paulorenato.com electronic's lab. In this article we have a look at my workspace and the many gadgets I've collected over the years.

 

 

 

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Diode temperature sensor calibration using Arduino and SHT15 module

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Category: electronicsanddiy electronicsanddiy
Published: 23 December 2013 23 December 2013
 
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A simple diode or the output of a transistor bias circuit can be used as a rough temperature sensor. For this purpose, a calibration procedure using a precise temperature sensor is recommended. This article shows how to calibrate such a temperature sensing circuit using an Arduino and the SHT15 Sensirion temperature/humidity sensor module.

 

 

 

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Sound Activated Laser Parking System

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Category: electronicsanddiy electronicsanddiy
Published: 05 August 2012 05 August 2012
 
 

This is a link to the article I published in the May 2012 edition of the Nuts & Volts magazine: a sound activated, laser parking system.

 

 

 

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Is your file encrypted? A visual test with R

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Category: Miscellaneous Miscellaneous
Published: 18 January 2015 18 January 2015
 
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A quick visual "test" to see if a file is likely encrypted using the R statistical computing package.

 

 

 

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A Dollar Store Voltmeter

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Category: electronicsanddiy electronicsanddiy
Published: 10 November 2012 10 November 2012
 
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How to make a cheap panel voltmeter from a dollar-store pedometer.

 

 

 

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More Articles ...

  1. Make Your Own Sensor Loupe
  2. Favorite Photography Quotes
  3. The 4 Percent Universe: Dark Matter, Dark Energy, and the Race to Discover the Rest of Reality
  4. Canon FD 85mm f/1.8 lens with the Sony NEX

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