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Forum Build Idea - RGB Touchpad Controlled Handheld Laser
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  • project
  • ben heck
  • led
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  • ben trendkilla
  • trendkilla254
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  • laser
Related

Build Idea - RGB Touchpad Controlled Handheld Laser

Former Member
Former Member over 10 years ago

Hey Ben,

 

 

I've been a member over at Laser Pointer Forums for a little while now. When you join you are drilled about laser safety and ensuring that proper safety glasess. I've seen countless Youtubers posting videos with lasers but without saying anything about laser safety. Those same YouTubers are burning matches and other things with no safety glasses on. No one should have to be told not to point lasers at airplanes, but you see it on the news. I'm afraid that persons who enjoy lasers in a safe and responsible way are about to lose their hobby. All of that said I would like to create a Handheld RBG laser. The innovative part will be the option to control the 3 individual diodes output power with a touchpad from a laptop. I might be able to get the parts machined and I might be able to use potentiometers to control each, but I want to take it one step higher. I'm assuming I could do this with the Arduino Nano, but I don't know how I could vary the mA output of the driver with the arduino. Then I have to figure out how to use the x,y coordinates to control each Constant current driver. This is just above my skillset. Not only would I like to combine the beams in a small semi hand held format, I would like to hack a laptop touchpad to control the rgb output. Maybe center is white, I'm not quite sure. That would take some brain storming. I think this would be a really cool build as well as an opportunity to speak out about laser safety and that they are not toys. I would like to be able to continue to enjoy the hobby.

 

 

Thanks,

Ben

(Trendkilla254 on Laserpointerforums.com)

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  • gihu
    gihu over 10 years ago

    Hi Ben,

     

    If analog instead PWM is a must, probably you could use a DAC connected to the arduino, and connet its output to an V-I converter buit with op amp.

     

    Hope that helps,

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  • Former Member
    Former Member over 10 years ago in reply to gihu

    I'm not terrible with wiring, but I have no experience with arduino, dacs or op-amps. The only thing I have programmed is through AutoIT for a video games. This sounds about right though. I suppose I will start research on how to use a dac with arduino. Thank you.

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  • Former Member
    Former Member over 10 years ago in reply to gihu

    I'm not terrible with wiring, but I have no experience with arduino, dacs or op-amps. The only thing I have programmed is through AutoIT for a video games. This sounds about right though. I suppose I will start research on how to use a dac with arduino. Thank you.

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