add PWM frequency getter/setter and init keyword arg #34
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Allow adjustment of the PCA9685 PWM frequency to be lowered to increase low-speed DC motor torque. Retain the default of 1600Hz for other purposes.
ladyada
requested changes
Dec 14, 2020
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Resubmitted as #37 |
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Allow adjustment of the PCA9685 PWM frequency to be lowered to increase low-speed DC motor torque. Retain the default of 1600Hz for other purposes.
Setting a PWM frequency of < 125Hz will significantly lower DC motor spin threshold and increase low-speed torque. Tests were performed with RF-500TB12x/18x and TT-gearbox motors.
