Hi all,
I am trying to build a device that can sense absolute pressure between 0-50kPA and trigger a vacuum suction to relieve the built-up pressure in a closed-loop system.
How do I use my Arduino Uno to communicate with the pressure sensor to sense up to XX kPA and communicate to the vacuum motor to trigger a suction response?
How do I use my Arduino Uno to communicate with my vacuum motor to stop suction response after pressure goes to 0 kPA?
OK, now tell us what pressure sensor you propose to use?
I am using a NXP MPVZ4006GW7U gauge pressure sensor with min operating 4.75V to max operating 5.25V.
That part is rated for 0 - 6kPa gauge.
https://www.kynix.com/uploadfiles/pdf65976/MPVZ4006GW7U.pdf
Why can't you just vent the 50kPa to atmosphere or back to low pressure side?
Or is that 50kPa absolute (-51.3 gauge)?
Actually the reference pressure can be set either to 0 or 1 atm.
what does the output voltage mean for a pressure sensor? How can I code it to obtain a cmH2O measurement from the output signal?