Description: When you want to use the potentiometer knob to control the fan speed, you only need to connect the driver board directly to the 24V DC power supply. When you need to use the motherboard or to control, just take out the potentiometer, connect the signal pin of the driver board to the 5V or 3.3V pin of the motherboard, and connect it to GND.
: enable "FAN_SOFT_PWM" and set "SOFT_PWM_SCALE"to 5
pin: host:gpio26
hardware_pwm: False
cycle_time: 0.005

Color: As Shown
Material: plastic

Package Contents:
1 x Brushless Centrifugal Air Blower
1* Drive plate