How a 555 Timer Works (Lens Detector Part 1)

I am slowly in the process of developing another class, but this time I want to go about it a different way. I’m going to be letting everyone else in on the process. The coming class will include a lot of projects, so during the development of different modules, I want to present some of that material to anyone who normally reads this blog.

The video below details the first installment of a lens detector project. At the heart of this piece of equipment is a 555 timer. On many occasions when using this chip I would glance at a random internet schematic, plug numbers into a formula, and walk away happy. This time I wanted to know what made this chip tick.

Thanks for watching and if you have any questions, please leave them in the comments!



1 thought on “How a 555 Timer Works (Lens Detector Part 1)”

  • Your video helped me a lot in understanding 555 Timer for my mini project “Automatic Dark detector”. Although I used 555 in bi-stable mode for my project. I am a little curious about the Lens detector. Would you please tell more about it. How can I make it at home if I want to? What kind of sensor is used to detect cameras?
    I am looking forward for your help. 🙂

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