SparkFun Qwiic Scale - NAU7802

Translating physical forces into digital data usually requires managing multiple components but the SparkFun Qwiic Scale simplifies the entire process. With the on-board NAU7802 this Qwiic breakout board acts as an all-in-one amplifier and Analog-to-Digital Converter (ADC). It effortlessly translates the minuscule resistance changes from a standard load cell into an easily readable digital signal allowing you to accurately measure the weight of an object directly from your microcontroller.Versatile ApplicationBy converting analog pressure into a true I2C output this board serves as a versatile function for a wide variety of custom projects:Process Control: Automate precise ingredient measurements for manufacturing or complex DIY setups.Smart Inventory: Create a pressure-sensitive shelf that tracks bin weight to know exactly when supplies are running low.Presence Detection: Build hidden weight-based triggers for interactive installations or smart-home automation.Completely Solderless SetupTo make building your custom scale as fast as possible the board features an incredibly useful four-pin spring terminal. Simply press down and insert your load cell wires with absolutely no soldering required. Additionally communication to your microcontroller is handled entirely through our plug-and-play Qwiic Connect System though standard 0.1-inch spaced pins (including an interrupt pin and AVDD) are fully broken out to the edge for breadboard users.Using Multiple ScalesPlease be aware that the NAU7802 has a fixed hardware-defined I2C address of 0x2A. If your project requires multiple scales on the same bus you will need to use a multiplexer (like the Qwiic Mux Breakout) to communicate with each without conflicts.