In this fun project an ultrasonic distance sensor is used to detect a “target” (i.e., a person, a cat, a burglar, etc.). The Arduino illuminates (blasts) the target using an inexpensive laser diode ...

Range finders are amazing tools for doing pretty much anything involving distance calculations ... the SF02/F rangefinder with the Arduino shield, and [Laser Developer]’s dive into what this ...

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.

powered by an Arduino UNO microcontroller and offering a work area of 200 x 162 mm and using a 1000 mW laser module which is run using a 5v USB power source. Panikulam has kindly made all the STL ...