Quick Answer: How does Arduino reduce dc motor speed?

How does Arduino change speed of dc motor?

The EN A pin of IC is connected to the PWM pin 2 of Arduino. This will control the speed of the motor. To set the values of Arduino pins 8 and 9, we have used the digitalWrite() function, and to set the value of pin 2, we have to use the analogWrite() function.


IN1 IN2 Motor Behavior

How does Arduino stop DC motor?

On Arduino, it’s possible to control the motor. As with the LED, you can control the motor to rotate or stop by turning the power supplied to the motor on and off.

How does voltage affect DC motor speed?

DC motor circuit. … From the analysis above, we can see that when the load (torque) on the motor is constant, speed is directly proportional to supply voltage. And, when the voltage remains constant, an increase in the load (torque) on the motor results in a decrease in speed.

How does Arduino control motor speed with PWM?

DC Motor control using PWM Signals – Arduino

  1. Introduction. The DC motor speed in general is directly proportional to the supply voltage, so if reduce the voltage from 9 volts to 4.5 volts then our speed become half of what it originally had. …
  2. 1.2 Hardware required. …
  3. 1.3 Motor Driver L293D IC Pin Out. …
  4. Programming: …
  5. Output.
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