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Motor Driver HAT
PWM
Raspberry Pi only has one hardware PWM pin (GPIO.1), and the software PWM of
WiringPi and Python will cost CPU resources. This module, we use PCA9685, I2C bus
controlled, support 16-channel 12-bits PWM output. The frequency range of PWM is
40Hz to 1000Hz.
It is very simply to use, to output PWM signal you only need to control corresponding
registers value of chip.
Refer the recommend circuit, LED0-LED5 are motor control pins.
From Page6 to Page8 of datasheet:
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