After all, the Arduino isn’t actually measuring the CPU speed, nor is it directly controlling it (that’s still done by the original Turbo button wiring).

At the heart of many amateur radio and other projects lies the VFO, or Variable Frequency Oscillator. Decades ago this would have been a free-running LC tuned circuit, then as technology advanced i… ...

Magnus is an Arduino-powered exoskeleton that uses pairs of electromagnets and permanent magnets to actuate your fingers with superhuman quickness.