G27 Load Cell v2

This is a simple load cell circuit that uses the potentiometer cables from the G27 brake pedal to feed a load cell amplifier INA122PA

and a button load cell.

A trimpot is used to control the amplifier gain, which in practice can limit the maximum weight required to reach 100% braking on the G27.

The other trimpot can be used to decrease the maximum voltage the circuit can output. Not really needed but can be handy if the circuit is connected to an arduino to offset the voltages.