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Type: Posts; User: dimaugh

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    Changing analogRead resolution

    Does it take any significant time to change analogRead resolution? I need to measure which points are pressed in a pressure sensor matrix, first scanning fast with a low, faster resolution, then...
  2. Ok, say I'm connecting the tracks to the output...

    Ok, say I'm connecting the tracks to the output pins, no multiplexer in between.
    If I set them all to digitalWrite(Low), will all the tracks be simultaneously connected to ground? I know the teensy...
  3. Multi touch surface (an interesting paper)

    Looking for possible designs for a musical instrument I've had in mind for a while, I found this very interesting paper:
    https://dl.acm.org/doi/pdf/10.1145/1520340.1520460

    The design seems...
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    Yes, that's the thing. I could, however,...

    Yes, that's the thing. I could, however, multiplex the ON pins instead of the signal pin, but it still would be incredibly messy, long cables from each key to the teensy and back, an insane lot of...
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    Thank you two! But the 74LVC1G3157 seems to be...

    Thank you two! But the 74LVC1G3157 seems to be single channel, I'd have to cascade many switches.
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    Thank you so much for your answer! Do you have...

    Thank you so much for your answer!

    Do you have any link where the mechanism for the touch pins in the Teensy (or any similar mechanism on the same principle, with two oscillators) is explained at...
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    Tiny mistake (apparently I can't edit the post),...

    Tiny mistake (apparently I can't edit the post), the 74HC4067 ON resistance is only 80 Ohms. Still, I think that's what's slowing down the readings so much.
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    Touch pins through multiplexer

    Hi there!

    I want to build a musical keyboard with around 300 hundred keys using the touch pins. Obviously, I'm gonna need some multiplexer. I ran some tests on the classic 74HC4067, but the base...
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