{"product_id":"sparkfun-qwiic-scale-nau7802-small-breakout-board-for-accurate-load-cell-reading-daisy-chain-able-operate-3-3v","title":"SparkFun Qwiic Scale - NAU7802 Small Breakout Board for Accurate Load Cell Reading, Daisy Chain-able, Operate 3.3v.","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eSparkFun Qwiic Scale - NAU7802 Small Breakout board Read load cells accurately No soldering Polarized connector Daisy chain-able Four spring terminal connectors on-chip temperature sensor Operate 3.3v\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSparkFun Qwiic Scale - NAU7802 Small Breakout Board for Accurate Load Cell Reading, Daisy Chain-able, Operate 3.3v.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SparkFun Qwiic Scale is a small breakout board for the NAU7802 that allows you to easily read load cells to accurately measure the weight of an object. By connecting the board to your microcontroller you will be able to read the changes in the resistance of a load cell and, with some calibration, you'll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control or simple presence detection. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1\"-spaced pins in case you prefer to use a breadboard. By connecting a load cell to the Qwiic Scale you will be able to translate sensor data into something your microcontroller can read. The NAU7802 is an ADC with built in gain and I2C output to amplify and convert the readings from a standard load cell. A load cell is basically a device that translates pressure or force into electrical signals. In most cases this signal is very small and needs to be amplified. There are many popular chips that read the change and amplify it, but the NAU7802 goes one step further and converts everything to a true I2C output (attached to a Qwiic connector). The board provides a four spring terminal to connect your load cell with no soldering required. In addition to the I2C pins, the board also breaks out an interrupt pin and AVDD to the edge of the board. The differential input signals (plus a second set of input signals) are broken out to the middle of the board, as well. The SparkFun Qwiic connect system is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong. \u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Easily read load cells to accurately measure the weight of an object. 2x Qwiic connectors allow you to quickly prototype your project. No soldering required. Polarized connectors so it can’t be hooked up wrong and Daisy chain-able.\u003c\/li\u003e\n\u003cli\u003e✅ By connecting the board to your microcontroller you will be able to read the changes in the resistance of a load cell and, with some calibration, you'll be able to get very accurate weight measurements.\u003c\/li\u003e\n\u003cli\u003e✅ Operating Voltage: 3.3V (NAU7802: 2.7V-5.5V). 24-bit Dual-Channel Analog to Digital Converter. Simultaneous 50Hz and 60Hz rejection. External differential reference voltage range from 0.1V to 5V.\u003c\/li\u003e\n\u003cli\u003e✅ Includes Programmable Gain Amplifier, Programmable PGA gains from 1 to 128, Programmable aDC data output rates.\u003c\/li\u003e\n\u003cli\u003e✅ Low Power Consumption and Programmable Power Management Options. \u0026lt;1uA standby current.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Product Dimensions:\u003c\/strong\u003e 1.06 x 1.46 x 0.63 inches; 0.35 ounces\u003c\/p\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantees\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE standard shipping within the United States (3–6 business days)\u003c\/li\u003e\n\u003cli\u003e✅ 100% money-back guarantee for lost or damaged items\u003c\/li\u003e\n\u003cli\u003e✅ Secure checkout with encrypted payment processing\u003c\/li\u003e\n\u003cli\u003e✅ Shipping via UPS, FedEx, and USPS\u003c\/li\u003e\n\u003cli\u003e✅ Ships to lower 48 states only (no PO Boxes \/ APO \/ FPO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ 30-day hassle-free returns\u003c\/li\u003e\n\u003cli\u003e✅ Items must be unused and in original packaging\u003c\/li\u003e\n\u003cli\u003e✅ Full refund if item is not delivered\u003c\/li\u003e\n\u003cli\u003e✅ Guaranteed delivery within 6–7 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePayment Methods\u003c\/h3\u003e\n\u003cp\u003e✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/p\u003e\n\u003ch3\u003eCustomer Support\u003c\/h3\u003e\n\u003cp style=\"text-align:left;\"\u003e✅ Questions? Contact us at \u003cstrong\u003eSupport@GiftAbay.com\u003c\/strong\u003e\u003cbr\u003eWe respond within 24 hours on business days.\u003c\/p\u003e\n\u003cdiv class=\"seo-data\"\u003e\n\u003cp\u003e\u003cstrong\u003eSEO Title:\u003c\/strong\u003e SparkFun Qwiic Scale - NAU7802 Small Breakout board Read load cells accurately No soldering Polarized connector Daisy chain-able Four spring terminal \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKeywords:\u003c\/strong\u003e sparkfun, qwiic, scale, nau7802, small, breakout, board, read, industrialscientific, industrialelectrical\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Industrial \u0026amp; Scientific\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubcategories:\u003c\/strong\u003e Industrial Electrical, \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SparkFun Electronics","offers":[{"title":"Default Title","offer_id":44641787543597,"sku":"PGABL1845722","price":13.29,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/6067\/7677\/files\/613GgLkjZsL._SL1500.jpg?v=1772034839","url":"https:\/\/prosupply.giftabay.com\/products\/sparkfun-qwiic-scale-nau7802-small-breakout-board-for-accurate-load-cell-reading-daisy-chain-able-operate-3-3v","provider":"ProSupply.GiftAbay","version":"1.0","type":"link"}