The NAU7802 Food Scale guide has everything you need documented to build your own. Please follow along with that guide first before adding in the Azure IoT Central functionality.
Follow the Fritzing diagram found on the Circuit Diagram page to wire up the food scale. The Wiring page goes into detail on soldering steps.
The 3D Printing page details the 3D printed enclosure for the project. The Assembly page goes through how to mount all of the components properly.
The Calibration page shows you how to properly calibrate your NAU7802 and strain gauge to get accurate weight measurements.
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