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  • ChrisM8 commented on Jamaal_7lna's instructable Creating Your First Multi-touch Table1 month ago
    Creating Your First Multi-touch Table

    Hey Man..first off great tutorial. Super detailed. I had a question maybe you can help. I already made a table with a 55" Samsung plasma TV. The TV was removed from the frame and set into the top of the table with a thin sheet of acrylic for protection (I have a super inquisitive 2 yr old). I have seen commercial display overlays ($600+) that use an IR matrix and simply tracks where the finger breaks the IR beam and assigns the X/Y coordinate on the screen. It connects using a regular USB cable right into the PC. The USB provides power and input. I like the idea of this as I would simply use it for simple touch applications like web surfing or perhaps a kids painting program. It claims to support 100+ mulittouch inputs. Any idea on the program used or what could be used for reading...

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    Hey Man..first off great tutorial. Super detailed. I had a question maybe you can help. I already made a table with a 55" Samsung plasma TV. The TV was removed from the frame and set into the top of the table with a thin sheet of acrylic for protection (I have a super inquisitive 2 yr old). I have seen commercial display overlays ($600+) that use an IR matrix and simply tracks where the finger breaks the IR beam and assigns the X/Y coordinate on the screen. It connects using a regular USB cable right into the PC. The USB provides power and input. I like the idea of this as I would simply use it for simple touch applications like web surfing or perhaps a kids painting program. It claims to support 100+ mulittouch inputs. Any idea on the program used or what could be used for reading the IR matrix? I grasp the hardware concept.. IR beams travel vertically and horizontally with an IR receiver on the opposite site of the frame. For example the IR LEDs would be at the top and the left where the IR receiver would be on the bottom and the right. I believe I can build the frame overlay, but I'm stuck on the software portion. I should mention I am running Ubuntu 17.1. I should mention the table has an app controlled Arduino relay setup underneath for a motorized gun drawer and lighting. I appreciate any input you have, or anyone here for that matter. Thanks in advance! PS. Let me know if you need any pics of the table.

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