But I guess that a simple firmware routine that performs a tare at regular intervals, and have a routine not doing the tare when there is a load on the scale, that should do the job?

 

But I guess that a simple firmware routine that performs a tare at regular intervals, and have a routine not doing the tare when there is a load on the scale, that should do the job?

Sure. If it's just sitting there close to 0000, monitor the load cell for drift and adjust as needed.