Hi, I'm trying to read some resistance values (resistive sensors) with an Arduino Due (3.3V). I'm using a voltage divider to avoid independence of voltage applied, using of course a reference resistor (1% tolerance) carefully measured but values obtained are far of real ones. Example: temperature …

Precision of resistor measurements...

TomGeorge January 17, 2019, 11:29am 13

Hi,
When you have your resistors in circuit, have you measured the circuit voltage values with your DMM and calculated the resistor value by hand to compare with the controller output?

Tom...

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Precision of resistor measurements...

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