zeroG:
Thank you Lefty,i want to try with the Wheatstone bridge. I'm following the notation from wikipedia : Wheatstone bridge - Wikipedia
In this page there is the formula to calculate the voltage (Vg) that depends on Vsupply and the 4 resistor values. Following the schematics, Vg is the voltage between pin 2 (+out 2) and pin 5 (-out 3)....right?The datasheet says that the sensor span is 80 mV, does it means that Vg(max) is 80 mV?
Thanks again!
That datasheet is hard to read as it's not in english. However a measurement span of 0 to 80millivolts is a realistic and common output range when dealing with simple bridge sensors without built in amplifications. Again you have a task ahead of you if you attempt to build the needed electronics for this kind of sensor to be useful on an arduino.
Good luck
Lefty