Reading 0.8-10V Pressure Transducer with Duet 6HC?

[bwoods]

We are building a custom system that uses a DIW (resin/epoxy) extruder that has 2 pressure transducers at the nozzle. We need to be able to read in the 0.8-10V signal from the extruder and convert it to 0 to 35 bar. We assume we can use the 2 of the 9 I/O pins for this, with pin 3 of the transducer connected to the GND pin of the I/O pin and pin 4 connected to the IO#.in pin. How do we then read in these values and convert them though? M308 with the linear analog looks possible, but we aren't entirely sure with the kinda weird arrangement we have going on. Once we have a way to read in the voltage, we can just add a command every X movements to update the pressures on the front panel occasionally. Any help is much appreciated!

[dc42]

@bwoods I suggest you use a potential divider to reduce the max voltage to 3.3V and use the linear analog sensor type. The IOx.IN ins have a 27K pullup resistor to +3.3V so you will need to allow for this in the configuration settings for the linear analog sensor.

[bwoods]

Can you elaborate on what you mean by the configuration settings for the pullup?