Calculate the frequency and/or duty cycle of an astable 555 timer.

Around these parts, projects needlessly using a microcontroller where a simpler design would do are often derided with the catch-all “Should have used a 555,” even if the venerable timer chip ...

The Mostronome is a 1975 electronic metronome that reimagined musical timing with its whistle-like tone. This vintage circuit ...

The 555 datasheet says a pulse on reset will override trigger and also force discharge of C1. In Figure 1, R3 and C2 provide ...

Whatever your needs, there is an app out there that works. Here are the best timer apps for Android. Of course, if all you need is something quick and basic, you can ask Google Assistant ...

Below section covers a list of simple microcontroller projects to learn and work with the concepts of various microcontrollers and architectures. These microcontroller based projects are covered with ...

One of the simple yet interesting connection diagrams that young engineers learn in their lab is the staircase lighting setup.

Set up the perfect shot, then get in it yourself, thanks to the iPhone camera timer! Select the perfect camera delay to give you plenty of time to get into position. Tap the iPhone photo timer icon, ...

Maybe it’s always 5:55 when you happen to glance at the clock, or your oat milk and matcha combo comes to $5.55, or your dream apartment’s address just so happens to be located at 555 XZY Street.

Around these parts, projects needlessly using a microcontroller where a simpler design would do are often derided with the catch-all “Should have used a 555,” even if the venerable timer chip ...