Amplify bend sensor

Forum 2005-2010 (read only) Hardware Interfacing
3

I'm not sure what would be better - just multiplying the values in the Arduino or having a proper amplifier.

Try it with the Arduino first. Its simpler and more flexible.
You want something like this to double the sensitivity:

in = analogRead(port);
in *= 2;
if (in > 1024)
{
  in = 1024;
}