hellow, i have problem with my mpx53 pressure sesor output. why my sensor output unstable? i connect sensor output to A7 and use internal 3,3v from arduino. thx. [arduino forum.PNG]

unstable output MPX53

Wawa August 10, 2016, 12:02am 8

You could supply the INA121 from 5volt if 3.3volt Aref is used.
Leo

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