ok thanks can u give me circuit for (555 with PWM)???Learn about the 555 chip here: http://www.uoguelph.ca/~antoon/gadgets/555/555.html
PWM is a good way to control the speed of a DC motor.
The voltage and current required by your motor will dictate the switching transistor used. The switching transistor will be controlled by the 555 and the PWM.
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