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Modo mod idea - Projected Keyboard - is it possible?

danielcleve

Hello

 

This is my first post here, and I want to make clear that I'm not an engineer nor a developer.

I want, however, to share this idea because it would be very useful for plenty of people I know.

 

Could it be possible to make a mod with a projected keyboard? Just like those devices that use some kind of red light to project a keyboard on the table.

The mod would be ajustable, just like the instashare projector, so that the motoZ would be placed over the table in a comfortable way to make and edit documents.

This would make possible for people to replace their tablets or notebooks in classroom or workshops by the motoZ with the mod.

 

Sorry for my ignorance regarding the mechanincs of the thing!

I would aprecciate if you share some piece of advice in this matter, even if it's just to say that is a stupid idea!

 

Thank you very much!

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    Just my $0.02, I think it's technically possible and could be a useful product.

     

    One challenge would be the size of the laser pattern projector.  Because it uses a lot of power and generates heat, it requires a heat sink.  The Cellulon laser is 9x12x9mm including the die cast housing.  You also need an IR light projector which is bulky but doesn't generate heat, and a small IR camera.   Driving the projector and laser would probably be pretty easy over the MDK "raw" interface.

     

    My main question would be how to process the IR sensor input and generate key events.  One option -- If the MDK Pi HAT adapter card's camera CSI interface could be used to efficiently drive the IR camera and read back it's view finder, maybe you could do the image processing on the phone.  That Android app would also be an input method so that it could generate key events for any application.  The advantage of this approach is that you save the cost and complexity of including a CPU and memory on the mod.  The other option would be to build the whole Cellulon device as a mod which could then supply an HID device recognized as an external keyboard to the phone.

     

    Jason Freund

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  • 0

    Just my $0.02, I think it's technically possible and could be a useful product.

     

    One challenge would be the size of the laser pattern projector.  Because it uses a lot of power and generates heat, it requires a heat sink.  The Cellulon laser is 9x12x9mm including the die cast housing.  You also need an IR light projector which is bulky but doesn't generate heat, and a small IR camera.   Driving the projector and laser would probably be pretty easy over the MDK "raw" interface.

     

    My main question would be how to process the IR sensor input and generate key events.  One option -- If the MDK Pi HAT adapter card's camera CSI interface could be used to efficiently drive the IR camera and read back it's view finder, maybe you could do the image processing on the phone.  That Android app would also be an input method so that it could generate key events for any application.  The advantage of this approach is that you save the cost and complexity of including a CPU and memory on the mod.  The other option would be to build the whole Cellulon device as a mod which could then supply an HID device recognized as an external keyboard to the phone.

     

    Jason Freund

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