555 Timer Circuits

555 Timer IC is one of the commonly used IC among students and hobbyists. There are a lot of applications of this IC, mostly used as vibrators like, ASTABLE MULTIVIBRATOR, MONOSTABLE MULTIVIBRATOR and BISTABLE MULTIVIBRATOR. You can find here some interesting circuits based on 555 Timer IC by using these different operating modes.

 

Simple LDR Circuit

Here we have explained a dark detector circuit by using 555 timer IC and a LDR (Light Dependent Resistor) which senses the...

DC Motor Speed Control Circuit

The DC MOTOR SPEED CONTROL circuit is primarily a 555 IC based PWM (Pulse Width Modulation) circuit developed to get variable...

1 Watt LED Dimmer Circuit

The LED DIMMER is primarily a 555 IC based PWM (Pulse Width Modulation) circuit developed to get variable voltage over constant...

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