Introduction Bartolomeo Cristofori, around the year 1700, invented a string instrument which we call as Piano. In piano, we strike the strings, which are coated by wooden hammers that are coated with a softer material. We play it using a keyboard. In this project, we will see how we can make a simple piano using IC555 …
We use LED lights almost everywhere to light up the space or a room. But sometimes, we find it difficult to deal with the brightness in the night time. So, in this project, we will see how to make a LED dimmer using IC555. We can acheived control over brightness of these LED lights according to the surroundings.
Introduction, We use Pulse Width Modulation (PWM) in today’s world due to its requirement for controlling many devices in the field of Electronics. We need PWM signal widely for controlling motors, dimming LED lighting and more. Sometimes, we don’t use microcontroller in our applications. If we need to generate PWM without microcontroller then we prefer some general …