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Thanks for reply Sheemalakameeda…
I buy THIS laser and there is glue on everything and I cant touch anything what is wired on driver and current voltage also.
I try to put 7805 mosfet on D9 pin on ramps and when I try to turn on fan (laser) it change power but not work at 0 and 255 like ttl. There is change of light power but not enought for ttl pwm