{"product_id":"m5stack-weight-unit-hx711-load-cell-adc-u030","title":"M5Stack Weight Unit – HX711 24-Bit Load Cell ADC | U030","description":"\u003cp\u003eThe M5Stack Weight Unit converts the small differential output of an external strain-gauge load cell into digital data for miniature scales, force measurements, parts counting, dispensing systems, and education projects. Its HX711 low-noise 24-bit ADC uses Channel A with selectable gain of 64× or 128× and a reference output rate of 10 samples per second. Accurate weighing depends on load-cell selection, mechanical mounting, correct wiring, calibration, temperature control, filtering, and overload protection.\u003c\/p\u003e\u003ch2\u003eWeight Unit: Core Functions and Control\u003c\/h2\u003e\u003ch3\u003eDigitize Bridge Signals with the HX711\u003c\/h3\u003e\u003cp\u003eThe HX711 combines a low-noise programmable-gain front end and 24-bit converter for the millivolt signal produced by a strain-gauge bridge.\u003c\/p\u003e\u003ch3\u003eSelect 64× or 128× Gain on Channel A\u003c\/h3\u003e\u003cp\u003eThe two gain settings provide approximate full-scale differential ranges of ±40 mV and ±20 mV respectively.\u003c\/p\u003e\u003ch3\u003eCalibrate Zero and Scale with Known Weights\u003c\/h3\u003e\u003cp\u003eFirmware must store an unloaded offset and calculate a scale factor after the load cell and mechanical platform are installed.\u003c\/p\u003e\u003ch2\u003eWeight Unit Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompact kitchen and ingredient scales\u003c\/li\u003e\n\u003cli\u003eParts counting and inventory bins\u003c\/li\u003e\n\u003cli\u003eForce and compression measurement\u003c\/li\u003e\n\u003cli\u003eMaterial dispensing and filling systems\u003c\/li\u003e\n\u003cli\u003eLoad-cell education projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow to Integrate the Weight Unit\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eSelect a load cell with suitable capacity, sensitivity, geometry, and overload margin.\u003c\/li\u003e\n\u003cli\u003eWith power removed, connect excitation and signal wires according to the load-cell datasheet.\u003c\/li\u003e\n\u003cli\u003eMount the load cell without side loading, binding, or enclosure contact.\u003c\/li\u003e\n\u003cli\u003eRecord the unloaded offset and calibrate with known masses across the working range.\u003c\/li\u003e\n\u003cli\u003eApply stability detection, averaging, drift checks, and overload handling.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch2\u003eWeight Unit Deployment Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eA load cell is not included.\u003c\/li\u003e\n\u003cli\u003e24-bit converter resolution does not equal guaranteed system accuracy.\u003c\/li\u003e\n\u003cli\u003eChanging the platform, mounting, cable, or load cell can invalidate calibration.\u003c\/li\u003e\n\u003cli\u003eShock loading and overload can permanently shift or damage the sensor.\u003c\/li\u003e\n\u003cli\u003eThis unit is not a certified legal-for-trade or medical weighing instrument.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWeight Unit Development Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/docs.m5stack.com\/en\/products\/sku\/U030\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"\u003eM5Stack Weight Unit Official Documentation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/uiflow2.m5stack.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"\u003eUiFlow2 Development Environment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/docs.arduino.cc\/software\/ide\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"\u003eArduino IDE\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LogicBoundless","offers":[{"title":"Default Title","offer_id":49240363270359,"sku":"LB-M5-U030","price":6.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/8952\/2135\/files\/1_2dc861d4-fdd3-411f-a542-6c02dc93b038.jpg?v=1783243280","url":"https:\/\/logicboundless.com\/products\/m5stack-weight-unit-hx711-load-cell-adc-u030","provider":"LogicBoundless","version":"1.0","type":"link"}