{"title":"Adafruit HX711 24-bit ADC for Load Cells / Strain Gauges","handle":"adafruit-hx711-24-bit-adc-for-load-cells-strain-gauges-ada5974","url":"/products/adafruit-hx711-24-bit-adc-for-load-cells-strain-gauges-ada5974","description":"The Adafruit HX711 Breakout is a high-resolution 24-bit differential ADC designed for reading load cells, strain gauges, and other Wheatstone bridge sensors. With selectable 64× or 128× gain on Channel A and fixed 32× gain on Channel B, it amplifies the tiny voltage changes from bending or twisting sensors and converts them into precise digital readings for force or mass measurement.\n\nThe breakout uses a two-wire protocol (similar to SPI) and comes with pre-soldered 6-port terminal blocks for connecting one or two 4-wire sensors. A slide switch lets you select between 10 SPS and 80 SPS sampling rates. Arduino and CircuitPython libraries are available for quick setup.\n\nKey Features\n\n\n24-Bit Differential ADC – High-resolution readings from Wheatstone bridge sensors\n\nDual Channel Input – Channel A with selectable 64× or 128× gain, Channel B with fixed 32× gain\n\nPre-Soldered Terminal Blocks – 6-port connector for easy sensor wiring (E+, E-, A+, A-, B+, B-)\n\nSelectable Sample Rate – Slide switch for 10 SPS or 80 SPS\n\nTwo-Wire Interface – SPI-like protocol for communication with any microcontroller\n\nSplit Analog/Digital Supply – With digital supply filtering for clean readings\n\nArduino and CircuitPython Support – Ready-to-use library and example code\n\n\nIdeal For\n\nDigital scales and weight measurement\nLoad cell and strain gauge applications\nForce and pressure sensing projects\nIndustrial measurement and monitoring\n\n\nPackage Contents\n\n1× Adafruit HX711 Breakout Board – Assembled with pre-soldered terminal blocks\n\n\n\nNote: This sensor has a fixed I²C address. If you need multiple sensors on one bus, a multiplexer is required. Load cells and strain gauges are not included.\n\n\n\nTip: If you prefer an I²C interface with STEMMA QT connectors instead of the two-wire protocol, check out the Adafruit NAU7802 24-Bit ADC.\n\n\nResources\n\nWorking with Multiple I²C Devices\nArduino Library (GitHub)\nCircuitPython Library (GitHub)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":982,"title":"Default Title","sku":"AF-5974","mpn":"ADA5974","price":19.28,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}