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Pressure not recorded

Question asked by Jorge Alegria on Feb 18, 2019
Latest reply on Feb 19, 2019 by Tomas Vaverka

Hi,

 

I am currently working with a MPX5500DP sensor to measure pressure but the analog reading from the Arduino Uno is never changing with and without any pressure applied. I included screenshots of my code along with pictures of my wiring. I used the transfer function from the datasheet to calculate the pressure if Vout is known and used the circuit from figure 4 with the decoupling capacitors. In the circuit pictures, I have the black jumper cable connected to ground, the red jumper cable connected to the 5V pin, and the blue jumper cable connected to analog pin 5. I did a bunch of Google searches and went through the datasheet numerous times but can't find any leads.

 

Thanks,

Jorge

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