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.

The 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.

Key Features

• 24-Bit Differential ADC – High-resolution readings from Wheatstone bridge sensors
• Dual Channel Input – Channel A with selectable 64× or 128× gain, Channel B with fixed 32× gain
• Pre-Soldered Terminal Blocks – 6-port connector for easy sensor wiring (E+, E-, A+, A-, B+, B-)
• Selectable Sample Rate – Slide switch for 10 SPS or 80 SPS
• Two-Wire Interface – SPI-like protocol for communication with any microcontroller
• Split Analog/Digital Supply – With digital supply filtering for clean readings
• Arduino and CircuitPython Support – Ready-to-use library and example code

Ideal For

• Digital scales and weight measurement
• Load cell and strain gauge applications
• Force and pressure sensing projects
• Industrial measurement and monitoring

Package Contents

• 1× Adafruit HX711 Breakout Board – Assembled with pre-soldered terminal blocks

Resources

• Working with Multiple I²C Devices
• Arduino Library (GitHub)
• CircuitPython Library (GitHub)