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Problem with TTP229-BSF using Arduino Uno
I'm trying to use a 16-channel capacitive touch sensor named TTP229-BSF with an Arduino Uno. I use the following code it works correctly when i touch directly but when i place two 4 mm plexiglass pads ...
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Touch pad Document
I tear down one touch pad and wonder what technology they used.
I am sharing picture of it.
Any one know what is used for touch sense ? (my guess is capacitive).
I am planning to design one by myself. ...
