Using AnalogReference

Hello everyone,

I am using a strain sensor and i would like to show the value of applied strain on bar-graph (10 leds each one requires 0.5 V).. However sensor output changes 0.1 volt at maximum strain which is not enough to show it on led-bar graph. I multiplied the sensor readings in order to increase but it does not contend me ...I have noticed that sensor reading resolution can be change and that solution may help me..

any idea?

use AnalogReference(INTERNAL) and you should get a reading between 0 and ~180.

otherwise you need an amplifier..