The IC You speak of, commonly referred to as a 555, is a multivibrator. Simply put, it can be configured to produce voltage pulses in some order. In the case of a buzzer circuit, it is used to...
The 555 timer IC is a device that can create various kinds of time delays in a circuit. It uses a threshold pin that is typically connected to an RC circuit. Depending on how it is connected, it can...
The 555 timer is a device that allows you to provide a timing signal to a controlled circuit. You provide an RC or other type of tunable circuit. Once triggered, the 555 will provide an output of a...
A 555 IC is a timer. You can use this for many purposes. It can be used to create different wave shapes (sawtooth, square wave), different tones for an audio circuit, among other things. Search for...