Hi there,
Just wanted to share that I've encountered a singular problem. I am building a capacitive keyboard using the teensy touch pins, and I'm connecting some sort of touch plates (pcb made) to those pins. Leds turn on corresponding to the key pressed. Here's the problem : If I am sitting in front of my computer, it's going to behave erracticaly. I have simplified the code to the point where it's only reading the values and serialprinting them. Problem is still here. If i get up of my chair, and stand far from my computer (like, not standing in front of it) and press the keys, it behaves perfectly. A friend of mine was here, played on it while I was in front of the computer, no problem. He sits in front of my computer, plays, it behave like a christmas tree. If I unplug the touch plates/keyboard from the teensy the problem almost vanishes, because I guess it becomes less sensitive to this kind of perturbation.
My computer is a lenovo T400.
I would be curious to hear some thoughts about this,
Cheers.
Edit :
If I bring my hands close to the plastic casing of the computer it gets really intense with the leds.
But if I do the same with my friend's macbook, nothing.
I mostly want to bring the attention that if you gets weird readings with the touch pins, try to stand away from you computer it could be the problem.
Just wanted to share that I've encountered a singular problem. I am building a capacitive keyboard using the teensy touch pins, and I'm connecting some sort of touch plates (pcb made) to those pins. Leds turn on corresponding to the key pressed. Here's the problem : If I am sitting in front of my computer, it's going to behave erracticaly. I have simplified the code to the point where it's only reading the values and serialprinting them. Problem is still here. If i get up of my chair, and stand far from my computer (like, not standing in front of it) and press the keys, it behaves perfectly. A friend of mine was here, played on it while I was in front of the computer, no problem. He sits in front of my computer, plays, it behave like a christmas tree. If I unplug the touch plates/keyboard from the teensy the problem almost vanishes, because I guess it becomes less sensitive to this kind of perturbation.
My computer is a lenovo T400.
I would be curious to hear some thoughts about this,
Cheers.
Edit :
If I bring my hands close to the plastic casing of the computer it gets really intense with the leds.
But if I do the same with my friend's macbook, nothing.
I mostly want to bring the attention that if you gets weird readings with the touch pins, try to stand away from you computer it could be the problem.
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