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What does PWM control in a servo motor connected to a Raspberry Pi?

easy📝 Conceptual Q11 of 15
Raspberry Pi - PWM Output
What does PWM control in a servo motor connected to a Raspberry Pi?
AThe temperature of the servo motor
BThe angle position of the servo arm
CThe brightness of an LED
DThe speed of the Raspberry Pi processor
Step-by-Step Solution
Solution:

  1. Step 1: Understand PWM role in servo control

    PWM (Pulse Width Modulation) sends signals to set the servo arm's angle by changing the pulse width.

  2. Step 2: Identify what PWM affects

    It does not control speed, brightness, or temperature but the position of the servo arm.

  3. Final Answer:

    The angle position of the servo arm -> Option B

  4. Quick Check:

    PWM controls servo angle = D [OK]
Quick Trick: PWM changes pulse width to set servo angle [OK]
Common Mistakes:
  • Confusing PWM with speed control
  • Thinking PWM controls LED brightness here
  • Assuming PWM changes temperature

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