MKS Gen v1.4 Free Pins

Electronics, Components etc
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TheCure
Posts: 1
Joined: Tue Feb 13, 2018 10:07 pm

MKS Gen v1.4 Free Pins

Post by TheCure » Tue Feb 13, 2018 10:20 pm

Hello all,

I'm new to this forum.
I'm at wits end after searching over the interweb only to come back empty-handed.

I have a MKS GEN 1.4 board sporting a MKS TFT 3.2 (aux 1), a 12864 LCD (EXP1/EXP2), RGB LED string (D4/D5/D6), bltouch (D11), two extruders (D7/D10), part cooling fan (D9), dual thermistors of course. I am needing to find another output I can use PWM preferably to control the 2nd part cooling fan.

I've tried all of the pins on AUX2(D63/D64/D65/D66/D40/D42/D44) ,AUX3(D49/D50/D51/D52/D53), XMAX(D2) using gcode: M42 P<pin#> S<0-255>
to no avail.
I see pin D12 is available on MKS GEN 1.5, but I don't see it broken out anywhere on this board.

Can anyone help me find an unused pin on the MKS GEN 1.4 board please?

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