![]() I just not sure I believe the chines laser pin out. If i put a multimeter on the PWM and GND pins the voltage varies between 0 and 5V as you would expect. The woodpeck laser pinout is 12v - PWM - GND and the laser pinout is 12v - GND - PWN if I connect the laser up as you would think 12v - PWM - GND the laser is on all the time even whilst running Laser GRBL, if I swop the PWM and GND the laser holds off but the fan speed modulates as if it was varying the laser power. I have two questions, the first I think I have answered myself. But it uses ancient GRBL 0,8 or 0,9, and has old Arduino bootloder. I'm also using for the first time Laser GRBL, Changing GRBL is quite easy just use avrdude and upload hex grbl file. With lasergrbl it's come just the andjustment light on. I'm connecting + and - from laser to laser separate power suply but pwm I dont know where to connect. It have just 2pin spindle, 2pin laser outputs and some 12V 2pin. I've been using a woodpecker GRBL 0.9 to control my CNC miller and recently purchased a chines 3 pin laser, when I recieved it I released that the woodpecker 0.9 would not support the 3 pin laser so I bought the woodpecker GRBL 1.1 which does support the laser. How can connect 2.5W 3 pin module to Woodpecker 3.1. ![]()
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