Today we are going to make an Arduino-based sonar machine. This mini radar detects the distance ... A WALL is Found At The EDGE Of Our Solar System ...

Making your own security system isn't too hard, but if you'd like a super cheap and simple method, Instructables user deba168 shows how to make a wireless motion detector with an Arduino.

He wanted to build a wireless three-axis accelerometer for a race car project, allowing engineers to make ... an Arduino and another nRF24L01 module plugged into a laptop. The telemetry system ...

When the power went out at his parents’ shop and ruined the contents of their fridge, [Lauters Mehdi] got to work building a custom power failure alert system ... an Arduino library to make ...