Although it’s an amazing DIY project, we noted that most of the readers are looking for more advanced circuits using multiple seven-segment light emitting diode displays. Here is a simple, yet useful ...

Once you push the button to start the timer, it will run for 25 minutes, display a count-up timer and a "Study time!" message on the LCD, and turn a green LED on. Afterward, it will clear the ...

[Scott-28] recently sent in a particularly well-documented project that turned an antique rotary phone into a digital kitchen timer using an internal Arduino ... segment LED display to show ...