laser diode

A YouTuber recently showcased a homemade laser microphone, a surveillance device capable of picking up sound from a distance by analyzing how a window vibrates. Originally used in espionage, this technology converts tiny light fluctuations into audio signals, demonstrating how sound waves can be captured without placing a microphone inside a room.

​In this article, we are going to discuss how to transfer audio through laser light. This is a fun little project, and the concept is similar to what we see in fibre optics cable. We will use a laser light to send data from one point to another. To be particular, in this project here, we are going to transfer our voice from one point to another by shining a laser light on a solar panel. This…

When debugging an electronics circuit or testing a new hardware design, often times I tend to check if the components on the board are getting hot abnormally by touching them. And if something is messed up (which usually is in the first try) these components could get as hot as 80°C or more burning not only the component but also my finger along with it. After burning my…

In this tutorial, we will show you how to connect a Laser diode in an electronic circuit. In comparison to LED’s light, Laser light is highly concentrated, it’s have smaller and narrower viewing angle. For connecting a laser diode in an electronic circuit we need a Laser diode driver circuit.