How to use laser modules

NEJE has many types of laser modules, but the control is the same. The following figure is the pin description:

12V: Power positive .

GND: Power ground or power negative.

TTL/PWM: TTL = PWM, input 3.3V~12V to turn on laser module, conect to GND to turn off laser module.

Temperature: do not connect, please ignore.

Connect 12V and GND pin to 12V power, ensure the power adapter is sufficient, 5A is recommended.

Connect TTL/PWM pin to your control board PWM output pin.

Other Links:

How to test my laser module ?

About PWM signal specification.

How to distinguish my laser module types ?

How to make laser module work with your control board ?

5 thoughts on “How to use laser modules”

  1. Mark Veilleux

    Purchased the Module NEJE A40640. I own an Ortur Master Laser2 Pro. I am not sure how to install it to my 24 volt laser. Is there a video on this procedure? There were no instructions included.

  2. JOŽE HERMAN

    Hi!
    how many pressure in Bar its needed for air assitent gor NEJE 40630. Thanks.
    in instruction its 0.6-1,5 Mpa but this its 6-15 Bar… very hard. Its this correct?

  3. I bought the neje master 2s max40640 a few days ago, however the laser beam itself doesn’t work. The fan activates for two seconds and there is a light that flashes about 7 times but there is no laser beam whatsoever.

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