Arduinp 16 channel servo board

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msdrastal
 
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Joined: Thu Nov 20, 2014 11:25 am

Arduinp 16 channel servo board

Post by msdrastal »

Newbie here, trying to start a junior high Makers club (again) and starting out trying to get 12 halloween heads (3d printed) to rotate via 9g servos (Arduino Diecimila and Adafruit 16 channel servo board). All is well with the "servo" example and servos act as expected. When I try the "PWM" example nothing works. The servos seem "locked up" (humming) and no movement.

Any thoughts why "servo" works and "PWM" doesn't?

Thanks,
Matt

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adafruit_support_bill
 
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Re: Arduinp 16 channel servo board

Post by adafruit_support_bill »

Because the Servo example puts out valid servo control pulses. The PWM example does not.

It is a common misconception that RC servos are controlled by PWM. They are not. PWM controls duty cycle from 0-100%. Servos respond only to pulse width, not duty cycle.

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