Basically, the microcontroller-compatible motor speed sensor module described is a simple device that yields processed pulse trains when the visual path of its optical sensor is physically interrupted ...

If you haven’t been paying attention, big wheel trikes are a thing ... [Flux Axiom] is using an Arduino Mega in his setup along with a cornucopia of sensors and all their data is being logged ...

[Florian] set out to solve this issue with an encoder that measures filament speed ... the encoder wheel before it’s fed into the 3D printer. The encoder is hooked up to an Arduino which ...

I made this project because I wanted a way to automatically control the speed ... sensor. I had a few problems with the PWM part mainly because the fan made a disturbing noise so I had to add a simple ...