This is simple LED Blinking Circuit using 555 Timer, make LED ON and OFF again and again; its good for beginner to learn 555 timer working. Also, it needs few parts and run from 9V battery and is easy to make and is a small fun project. Circuit Working: Parts List: Components Values Quantity Resistors […]
Timer Circuits
LED Binary Counter Circuit
This project is for LED Binary Counter Circuit, which uses IC 555 timer as clock pulse generator and it also uses 74HC4040 binary counter IC. The LEDs connect to the outputs to display the binary count and the circuit operates from a 6 V battery or a DC power supply. Circuit Working: Parts List: Components […]
555 IC Based Schmitt Trigger Circuit
555 IC Based Schmitt Trigger Circuit is a small project, it work like comparator and comparator is ON/OFF when input cross the voltage; noise make output jump and Schmitt Trigger stop this. It have 2 limit: high and low. input goes high then output is ON and input goes low then output is OFF. Moreover, […]
Two Star Flasher Circuit with 555 IC
This simple article is for Two Star Flasher Circuit with 555 IC and its main part is 555 timer IC which works in astable mode; also in this mode IC give continuous square wave pulses. These pulses make the two lamps blink alternately, creating a star-like flashing effect; also the resistor and capacitor values show […]
Refrigerator Door Open Alarm Circuit with IC 555
Sometimes, people forget to close the fridge door and this causes loss of cooling and waste of electricity; so to solve this problem we can use a simple Refrigerator Door Open Alarm Circuit with IC 555 When the door stays open, the buzzer gives a sound, so it reminds the user to close the doo; […]
Simple Time Delay Circuit for DC Power
Simple Time Delay Circuit for DC Power uses SCR and it is very useful in many uses and is easy to understand. Need wait before device ON? then this circuit gives delay after power ON; also circuit is good to turn devices one-by-one and avoid current spike. Also, the max input DC for this circuit […]