Lasers are some of the coolest devices around. 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 ...

[Neumi] wrote in with a sweet robotics hack. It’s a 2D laser distance sensor (YouTube) made with a cheap line laser and an optical mouse’s flow-sensor chip used as a low-resolution camera. In one ...

If you have ever wanted to create your very own laser tripwire grid like in the movies to protect your valuables possessions, buildings or outhouses. You might be interested in a new Arduino ...

Playing a game of laser tag at home has become a reality thanks to some clever Raspberry Pi and Arduino setups in the past, and it’s been taken a step further by replacing the players with RC tanks.