We can use them to cut things, create laser light shows, and also as a rangefinder.[Ignas] wrote in to tell us about [Berryjam’s] AMAZING write-up on creating an Arduino based laser rangefinder.

The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close ... receiver IR1 is only ...

Most ambient lights and sensors are designed to generate light to even out the picture on the front of the panel and reduce any light bleed from the back of an LCD display. This Arduino-powered ...

We know that measuring the speed of light with an Arduino ... a laser pointer and measuring the time of the reflection. Because his blinkenlight shield can be used as a light sensor, all that ...

Makers and developers might be interested in this new project which has been published by Instructables user “Venkes”, who has created a DIY laser scanning microscope using an Arduino Uno ...

In the microcontroller era today, Arduino ... light level is below a threshold value. Here an LDR (Light Dependent Resistor) is used to measure the light level. The alarm system is triggered when a ...