Systems and methods for electronic scale auto-zeroing

A method for controlling a scale, the method comprising:

• receiving an activation command activating the scale;
• responsive to receiving the activation command, initiating a powerup zeroing function;
• receiving, from a load cell of the scale, a first signal indicative of a force applied to a platform of the scale;
• responsive to receiving the first signal, determining whether the force applied to the platform of the scale exceeds a threshold;
• and
• responsive to determining that the force exceeds the threshold:
• cancelling the powerup zeroing function;
• and
• calculating a weight based on the first signal.

An electronic scale comprising:

• a memory,
• a load cell coupled to a platform of the scale, and
• an electronic processor coupled to the memory and the load cell and configured to:
• retrieve a voltage value from the load cell;
• retrieve, from the memory, a previously stored zero point value for the load cell;
• compare the voltage value to the previously stored zero point value;
• responsive to determining that the voltage value differs from the previously stored zero point value by more than a drift threshold, increment a drift counter;
• responsive to determining that the drift counter exceeds a threshold value, set the zero point value for the load cell based on the voltage value.