HX711 Load Cell Amplifier Module

The HX711 Load Cell Amplifier Module is a high precision 24 bit analog to digital converter designed for weight measurement applications. It is specially developed to interface directly with strain gauge load cells and provides stable digital output for microcontroller based systems.

This module amplifies the small differential signal from a load cell and converts it into a digital value using a two wire interface. It is widely used in digital weighing scales, industrial measurement systems, force sensing applications, and embedded projects.

KEY FEATURES

• Based on HX711 24 bit ADC
• Designed for load cell and strain gauge sensors
• High precision weight measurement
• Two wire digital interface
• Low noise and stable performance
• Adjustable gain 32 64 128
• Compact PCB module
• Easy integration with Arduino and other MCUs

SPECIFICATIONS

• Operating Voltage = 2.6V - 5.5V
• ADC Resolution = 24 bit
• Gain Options = 32 64 128
• Input Type = Differential
• Output Data Rate = 10Hz / 80Hz
• Interface Type = Two wire serial
• Operating Temperature = 0C - 70C
• Application Type = Weight measurement

INTERFACES

• VCC = Power supply input
• GND = Ground reference
• DT = Data output
• SCK = Serial clock input
• E plus = Load cell excitation positive
• E minus = Load cell excitation negative
• A plus = Load cell signal positive
• A minus = Load cell signal negative
• B plus = Secondary channel positive
• B minus = Secondary channel negative