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Qvar array
Hi all,
Would it be possible to have an 8x8 array of capacitive pressure sensors connected to the Qvar pins by an analogue multiplexer.
I would like the qvar to effectively scan across the sensing array.
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Hi @TKula ,
Welcome to ST Community!
It should work but you have to handle the settling time during the switching between a capacitive sensor and the other and to handle the limited BW of the Qvar considering the large numers of sensors that you want to connect.
Be sure to have a small delay required for the QVAR sensor to stabilize and accurately measure the capacitance.
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