I need help modifying the following schematic to accommodate essentially the arduino power and nothing else. I tried switching the flexiforce pin from the inverting pin to the non-inverting pin of the op amp then powering it with +5v, but that did not work. I don't know the first thing about designing circuitry, so any help is greatly appreciated. I have done tons of googling with no luck.
If I have to use circuit, how I can get a -5 volt supply out of the 5v supplied on the arduino?
Thanks to anyone who can help me, I have been trying to solve this on my own for a couple days.