This board allows you to use a spare stepstick slot on your control board as 3 fan pwm ports. These are manufactured by MKS; we had not seen anything similar in the market so we brought some in.
These are perfect in case you blew on your pwm ports or if you just need more than what your control board provides.
FANI use ENABLE signal FAN2 use STEP signal FAN3 use DIR signal
If you need help setting up the firmware config for these, please reach out.
The schematic can be found here: https://github.com/makerbase-mks/MKS-extension-module/tree/master/MKS%203MOS/MKS%203MOS%20V1.0_001
