[Johan Beyers] built an elegantly simple Dog Speedometer project that uses a POV display to display a running dog’s speed without the benefit of an accelerometer. Using an Arduino (looks like it might ...

The speed of an automobile can be indicated by detecting the pulses generated by the ignition system and causing an LED to light. The circuit utilizes a quad NOR gate IC chip. Two of the gates are ...

One of Britain's most luxurious car brands has given the green light to install speed awareness devices for a local community to improve road safety for all motorists. Rolls-Royce Motor Cars has ...