Beep...Beep…Beep. We all are familiar with this sound. It is frequently used in Alarm Clocks, Wash-Cycle Complete alarm etc. This sound indicates the completion of a particular task by an electronic gadget. Such as an Humidifier, electric toothbrush, ups of an desktop computer, inverter, Dishwasher, microwave or an Security alarm.…
Can you see with the sound? Well! Bats definitely can. They can fly in the absolute darkness without smashing into trees or things and that too at an amazing speed! Have you ever wondered, how they do it? The secret behind their flight is the use of sound for navigation.…
Clock Pulse Signal Generator using 555 Timer “Oh! I am getting late. I will definitely miss the metro today, ” you look at your watch and say. You may be wondering what this has to do with the topic of this article. Well, I assure you that it does! I…
Automatic Street Light using 555 Timer The Automatic Street Light using 555 Timer is a small project to switch ON/OFF street lights automatically. It can switch ON the street lights during night time and switch them OFF during day time. This can help us in saving lot of energy due…
The 555 timer is very popular as an square wave generator. This amazing IC can also be used to generate train of pulses of different duty cycles. However in order to make the best out of it, we must know how to control the frequency of 555 timer. And what…
So, "What can you do with a 555 timer?" In which projects and circuits 555 timer can be used? If you have just started experimenting with IC 555 timer or even if you are an experienced electronic hobbyist, this question must have come to your mind. The IC 555 Timer…
1 to 20 Minute Timer Circuit using 555 This is basically an monostable multivibrator circuit using IC 555 timer. The time interval is decided by resistors R1, R2 and timing capacitor C. On pressing the switch S1, the output goes from LOW to HIGH and the relay switches on. The…
Long Duration Timer Circuit using 555 The Long Duration Timer Circuit is a very useful and practical application of IC 555 Timer. It is used to switch OFF an electric or electronic device after a set period of time. You can easily set the output delay time from 30 minutes…
How to make 1 Hour Timer Circuit using 555? The 1 Hour Timer Circuit using 555 can be used to switch ON/OFF an external AC appliance. For example an heater, cooling fan or any other general purpose electrical appliance, which needs to be switched ON or OFF after an set…
How to make PWM circuit using 555 Timer? PWM using 555 Timer – Circuit and Explanation. As you might have guessed from the title, here we are going to make an PWM circuit using 555 Timer IC. The IC 555 timer can easily produce an PWM signal. In PWM, the…