AnsweredAssumed Answered

MPX4115AP weird reading

Question asked by Ian Cinnamon on Jun 9, 2007
Latest reply on Oct 8, 2012 by 4guin4g4

I have the MPX4115AP sensor. I have it hooked up according to you datasheet. The output of Pin 1 (Pin 3 is +5V) starts at 3.8V when power is first applied, and then drops gradually to about 2.5V after 5-10 seconds. The air pressure is not changing.
When I do change the air pressure, however, the reading continues to drop - it has no effect.

 

Any help would be appreciated (and the sooner the response the better)!

 

Thanks!!!

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