Ventilator venturi flow meters

Venturi flow meters for our ventilator design:
https://github.com/Crowdsourced-Ventilator-Covid-19/crowdsourced-ventilator-covid-19/blob/master/README.md
https://youtu.be/UG0DDkqZ9kk

3-barb is to measure inspiratory flow and patient pressure
2-barb is to measure expiratory flow

When paired with this differential pressure sensor:
https://store.ncd.io/product/ams5915-0100-d-amplified-low-pressure-sensor-0-100-mbar-0-to-1-450-psi-i2c-mini-module/

You can measure 0-85 lpm volumetric flow

Print vertically with the barbs facing up