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PROJECT

Halloween Pumpkin

By Adafruit Industries

Here is a quick project for an electronic Halloween pumpkin.

PROJECT
171

How to Use a Sonar Sensor on an Arduino to Measure Distance

By All About Circuits

The primary use for sonar is to be able to "see" and navigate underwater, using the propagation of sound to detect objects. This tutorial we will show you how to use a sonar sensor on an Arduino to measure distance.