sir, i want to interfaceto 89c52 and control the speed of the dc motor, i m not getting idea, how to control dc motor speed by using 89c52
You could try this: Press the 89c52 firmly against the motor spindle to slow the motor down, release to speed up. To stop the motor short the supply across a couple of the pins. Implementation time: 2 seconds. Cost: $4.95 Job done!
Hallo Stefan! Oh, I would be very happy if i could solve all my problems in that straight way. Ulf
OK, time for a fresh start... More details are required, let's start with: - Details of the DC motor. - How the motor is to be driven. - How the motor speed is monitored. There are endless variations in each case. If you have not made up your mind about these details, then tell us about the application.
Usually with Pulse Width Modulation (PWM) for small brush type DC motors.