Free simple 555 timer circuits electronics projects with explanation and diagrams. Huge collection of electronics projects based on the 555 timer circuit or equivalent integrated circuits.
Using electronic diagram below can be made a very simple water softener. This 555 timer circuit water softener is based on a theory that says that an electromagnetic field or electrical cause small crystals of calcium carbonate in water to join together, forming larger crystals.
Using a 555 timer circuit and some electronic components can be designed such a softener.
Timer 555 produces a square wave induced water pipe by two coils in one end wrapped around .
Using this electronic scheme can be made an electronic circuit that allows a sound indication for a button.The circuit is based on a 7555 integrated timer (CMOS version of the well-known ment 555) is connected as a multivibrator astabil .His output is a rectangular pulse with a frequency of 700 Hz, which is used to control a small buzzer. The circuit will oscillate be prevented if pin 4 of integrated circuit is connected to 0 V.
