I thought about 3D printing a pressure multiplexer to be driven by a stepper motor.

Imagine an 8 point ignition distributor.

You wouldn't have 8 real time pressure sensors, but I guess 1 second on each input should be enough for pressure to stabilize enough for measurement. So sampling all 8 inputs would take 8 seconds.

Commercially available but much more expensive than buying 7 extra sensors.

Should be a fun Arduino project.

Finn

On 1/8/2020 10:17 AM, Matt Boiteau mattboiteau@gmail.com wrote: