After obtaining an industrial distance sensor, TUENHIDIY decided to use it as the basis for an interesting visual indicator.
As shown in the video be low, it does a good job of sensing how far an object is from it on a table, and the 126 LEDs provide a nice brilliant display.
Code for the build can be found on GitHub if you’d like to make something similar. Seeing as though the sensor used here will set you back close to $1,000, you may want to also consider alternatives like an HC-SR04 ultrasonic module instead!
Read more: blog.arduino.cc