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555 Circuits

Great Light Sensitive Intruder Alarm Circuit

April 19, 2020 by Angga Daren
intruder alarm circuit

Intruder alarms are a device that is quite popular in areas that have a high level of security, and civil homes that can detect actions that can interfere. There are … Read more →

Categories 555 Circuits, Alarm Circuits Tags 555, alarm, intruder

Continuity Tester Circuit based IC 555

April 15, 2020 by Angga Daren
continuity tester

This circuit can be used to detect the high and low resistance of a speaker. Which can be indicated by the tone heard on the loudspeaker being tested. When the … Read more →

Categories 555 Circuits Tags continuity, tester

Simple Hulda Clark’s Zapper Circuit with 555 IC

April 15, 2020 by Angga Daren
Hulda Clark's Zapper Circuit

This circuit was originally designed in 2003 by using IC 555 as a 30kHz square wave frequency generator. The red LED lights up immediately when the circuit is turned on. … Read more →

Categories 555 Circuits Tags 555, zapper

Car Tachometer circuit based 555 IC

April 13, 2020April 13, 2020 by Angga Daren
car tachometer circuit

IC 555 in this circuit is configured as a monostable multivibrator that has one input. because monostable circuits have a certain period, the number of periods is determined by a … Read more →

Categories 555 Circuits Tags car, tachometer

Bi-Polar LED Driver Circuit

March 31, 2020 by Angga Daren

This circuit is called a bi-polar led because it consists of two LEDs, each of which has a different polarity. These two LEDs will emit light alternately. The light turnover … Read more →

Categories 555 Circuits Tags bipolar, led driver
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