In simracing pedals load cells are often used for the brake pedal.
They provide a realistic feeling and like a real hydraulic brake the signal increases with the force applied. A challenge in DIY setups with load cells is to amplify and shift the tiny signal from the load cell.
Depending on the type of load cell it is either a full wheatstone bridge creating a differential signal or in the case of 3 wire load cells just half of the wheatstone bridge which is basically just a resistor divider changing the ratio with the force applied to the strain element.
Using 3 wire load cells alone on a differential amplifier requires generating the other side as a reference voltage with a static divider. In some applications a 1k/1k divider can be enough but then an offset either positive or negative is to be expected.
Another solution is to use a variable divider as the reference. This is what i chose for the following module. It features an INA333 and a trimpot for the gain and also one for the offset to fine tune the loadcell depending on preloading and manufacturing variations.