NEJE 30 with SKR 1.4T

Hello, does anyone have this setup ?
Can you please tell me what pin you use control the TTL signal to laser ?
Because i think the mosfet logic is inverted.

So i found out PWM inverter circuit and it seems to work ok.

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Another type of solution could be to use photocoupler.
But i suggest to use faster type the PC817.

Or you can use some other PINs with PWM on motherboard :slight_smile: