Basic (PWM) Motor Speed Control Using 555 Timer ICs

This is the first part of supposed to be a two-part instructable about speed control of a DC motor using 555 timer ICs meant to cater those who are still starting to make electronics a hobby and beginners like me in a way. In this part, I will talk about the basics of motor speed control specifically via Pulse Width Modulation controlled by an input voltage signal(using a potentiometer). In the second part, I will try to replace the input voltage signal with let’s say, a temperature sensor to vary the pulse width of the voltage signal fed to a DC motor.”

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