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 Application By 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 Setup To 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 Scales Please 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. https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2019-04-12 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2019-07-04 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2019-07-09 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2019-11-29 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2019-12-03 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2020-11-03 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2020-11-04 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2022-02-21 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2022-11-25 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2022-12-03 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2025-04-12 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2025-04-14 https://elecena.pl/product/15617979/sparkfun-qwiic-scale-nau7802 2026-03-15