You can use a microcontroller to build a clock. After all, a clock is just something that counts the passage of time. The only problem is that microcontrollers can’t track time very accurately. They ...

One of the categories we chose for the One Hertz Challenge is “Could Have Used a 555.” What about when you couldn’t have, but did anyway? The 555 is famously easy to use, but not exactly the most ...

Do you have work to do and need a timer to keep you focused? You don’t need something overly sophisticated with many features, but a simple timer that uses minimal resources? Then, you may want to ...

Sometimes the hardest part of exam preparation is simply starting. A full chapter feels heavy, and distractions appear within minutes. That is where the timer challenge trick can make studying ...