This is a tutorial on how to get serial data out of a cheap handheld laser distance meter, which can be fed into an Arduino or a PC. You can use the distance measurements in all sorts of projects like robots and quadcopters. There are vendors who sell conversion kits that sniff the distance measurement off the LCD and output it over serial. The problem with those kits is that they cost more than the laser meter itself. L Laser distance meters use precise electronics to measure the length of time it takes a laser beam to reflect back from a target. Handheld units like this one have a range of about 0.2m – 40m with a precision of 2mm. They’re a great replacement for HC-SR04 ultrasonic sensors if you need long range measurements.
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