Measuring resistance using analog breakout

[Kevin Sevcik]

Easiest to wire would be a voltage divider between a known resistance and your sensor. Think of it like your potentiometer, only with a variable resistance between +5 and GND.

Wiring would be so:
Sensor between SIG and GND
Known resistor between +5V and SIG

You'd get a varying voltage on your SIG equal to the following:
R - constant known resistance
r - variable sensor resistance

V = 5 * r / (r + R)

If you pick an R value about 5-10 times the maximum value of r, you'll end up with a moderately linear signal, if rather small.

Other options are various amplifier and/or transistor circuits which will all be a bit complicated.