“Numerous studies have shown that flickering, Although high frequency and then totally invisible, It can also cause headaches, eyestrain…
This time I will sho you how to make a device that can determine the quality of the bulbs, from the point of view of their flicker. The quality also depends on the spectrum of light they emit, but we will discuss this in one of the following videos.
Incandescent, halogen or fluorescent lamps (as well as LED if poorly designed), turn on and off a hundred times a second and produce light with a flicker at a certain frequency.
Numerous studies have shown that flickering, Although high frequency and then totally invisible, It can also cause headaches, eyestrain and nausea. Commercial flickering measuring instruments are very expensive (from a few hundred to several thousand dollars), and we can make it for about ten dollars. The code is taken from Electronupdate blog, and instead of APDS9002 ligt sensor I use homemade sensor made of old transistor in metal box BC219. For a sensor you can use almost any transistor with a metal housing to which you will cut the upper part. I also use a 1.3 inch OLED display instead of 0.9 inches for better visibility, with minor code changes.”