Jeeps are synonymous with carefree, go-anywhere, four-wheeled adventure, with or without the top down. To many owners, these are fun weekend toys that, as luck would have it, can also be driven to ...

I was planning to use the opto-coupler speed sensor as part of a motor speed control – making the motor into the VCO block in a phase-locked loop. When this technique works, using it is simple: put ...

If your memory of slot cars as a childhood toy is of lightweight controllers with wire-wound rheostats inside, then you’re many years behind the state of the art when it comes to competitive slot car ...