zxcvb Posted April 18, 2022 Posted April 18, 2022 Hello, I want to hook up a MPL3115A2 pressure transducer sensor and interface it with an Arduino micro-controller. But I have a question. I could set up the display and I can see it is working. The problem is that I get some random numbers, regardless of connecting the sensor or disconnecting the Arduino analog input from it. What might be the problem? Even when nothing is connected to the A0 or any other analog pin, I see the same behaviour. I appreciate any reply and help.
No1sonuk Posted April 18, 2022 Posted April 18, 2022 Sounds like you need some noise suppression. Not sure how you can do it on an analogue line, though.
Nikolas_A Posted April 18, 2022 Posted April 18, 2022 MPL3115A2 is I²C, not analog. Are you sure you have it wired correctly?
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