Solved
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.
Federica BossiBest answer
ST Technical Moderator
August 2, 2024
Hi
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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