Raspberry Pi - PWM Output
What will be the servo angle if the PWM duty cycle is set to 7.5% at 50 Hz frequency?
What will be the servo angle if the PWM duty cycle is set to 7.5% at 50 Hz frequency?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand duty cycle to angle mapping
At 50 Hz, 7.5% duty cycle usually corresponds to the servo's neutral position (90 degrees).Step 2: Compare with common servo positions
0 degrees is near 2.5%, 180 degrees near 12.5%, so 7.5% is 90 degrees.Final Answer:
90 degrees -> Option AQuick Check:
7.5% duty cycle = 90 degrees [OK]
Quick Trick: 7.5% duty cycle usually centers servo at 90° [OK]
Common Mistakes:
- Confusing duty cycle with frequency
- Assuming linear mapping without calibration
- Mixing up min and max duty cycles
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