On boot up, the scale will zero itself. When it says "STARTING" on the display, you can place the food container filled with your pet's favorite munchies.
You can press the green button to cycle through the different modes. You can display the weight in grams, zero out the scale or run a full calibration.
You can also view your current offset value. This comes in handy for updating your calibration.py file after recalibrating.
Going further, you could try mounting the strain gauge to measure other object's weights, like laundry detergent or solder paste. You could also log the data over time to make this an IoT project.
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