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#14503 |

I’m not so sure about pwm support on that driver. It can be driven by ttl logic , on or off, but i don’t think this will do pwm. Can you ask seller to confirm? The dtr laser shop site describes the buck drivers like the one you bought and refers you to other sellers if you need a driver with modulated input. This kinda convinces me that theirs doesn’t support it. Let us know when you find out.