HX711 Load Cell Amplifier Module

Product Overview

The HX711 is a specialized IC designed to amplify the tiny millivolt signals from a load cell (strain gauge) and convert them into digital data that an Arduino can read. It eliminates the need for complex analog circuitry. Whether you are building a digital kitchen scale, a postal scale, or an industrial level sensor, the HX711 is the standard choice for “Maker” weight-sensing projects.

Arduino Wiring & Connections

To Load Cell:

• RED Line: Input E+

• BLACK Line: Input E-

• WHITE Line: Input A-

• GREEN Line: Input A+

To Arduino:

• VCC: 2.7V – 5V

• GND: Ground

• DT (Data): Any Digital Pin (e.g., D3)

• SCK (Clock): Any Digital Pin (e.g., D2)

Technical Specifications