HX711 Dual Channel 24-bit A/D Conversion Weighing Sensor AD Module Shield

The Weighing Sensor AD Module with Dual Channel HX711 is a professional-grade, high-resolution 24-bit analog-to-digital converter specially designed for interfacing with load cells, strain gauges, and weight measurement systems. With a built-in low-noise programmable gain amplifier (PGA) and dual differential input channels, it is the industry-standard chip for precision weight monitoring.

The HX711 module is widely used in digital weighing machines, IoT automation setups, smart agriculture, kitchen scales, and lab instrumentation due to its exceptional stability and noise-free signal conversion. This shield simplifies wiring and ensures error-free connection with microcontroller platforms like Arduino, NodeMcu, ESP32, and Raspberry Pi.

If you’re building a custom weighing scale, inventory management system, feeding automation, or weight-detection device, the HX711 Shield is your most reliable interface solution.

🔧 Technical Specifications

Chip & Conversion

• IC: HX711 (24-bit A/D Converter)

• Resolution: 24-bit dual-channel

• Input Channels:

  • Channel A: High precision (gain selectable 128 or 64)

  • Channel B: Low precision (gain 32)

• Conversion Speed: 10 Hz or 80 Hz (selectable)

Electrical Characteristics

• Operating Voltage: 2.6V – 5.5V

• Operating Current: <1.6mA

• Digital Interface: 2-wire (DT & SCK)

• Output Type: Digital serial interface

Compatibility

• 1kg, 5kg, 10kg, 20kg load cells

• Half-bridge, full-bridge, and strain gauge sensors

• Arduino, ESP8266, ESP32, NodeMcu → https://electroway.org/product-category/iot-and-smart-solutions/iot-modules/nodemcu/

• Raspberry Pi → https://electroway.org/product-category/electronic-accessories/mounts-and-cases/raspberry-pi-mounts-and-cases/

Shield Features

• Dedicated load cell terminals

• Power indicator LED

• Stable onboard voltage regulator

• Mounting holes for easy installation

• Clean PCB layout for minimal interference

🌟 Key Features

• Ultra-high resolution 24-bit ADC for accurate measurement

• Built-in low noise amplifier (PGA)

• Dual channel support (A & B) for multiple sensors

• Ideal for weighing scales & force measurement

• Simple 2-wire serial communication

• Compatible with Arduino libraries & IoT platforms

• Stable performance even in noisy environments

• Low cost, high performance industrial-grade module

🧪 Applications

• Digital weighing scales

• Livestock & feeding automation

• Smart agriculture weight sensing

• Parcel / postal weighing systems

• Ingredient & kitchen scale projects

• Industrial force sensing

• Vending machine automation

• IoT weight monitoring

• Material tracking systems

• Robotic force feedback

• Hydroponics & aquaponics monitoring

⚠ Precautions

• Avoid electrical noise near motor drivers or switching supplies.

• Use shielded twisted wires for long load cell connections.

• Protect module from moisture and vibration.

• Never exceed load cell’s rated capacity—this may damage the HX711 input stage.

• Calibrate using Arduino libraries before use.

• Keep wiring short for highest accuracy.

🔧 Internal Useful Links

• Electronics Components: https://electroway.org/product-category/electronics-components/

• Arduino & Accessories: https://electroway.org/product-category/arduino-and-accessories/

• Tools & Accessories: https://electroway.org/product-category/tools-and-accessories/

• IC’s Category: https://electroway.org/product-category/ics/

📹 YouTube Tutorial (HX711 With Arduino)

Watch Video:https://www.youtube.com/shorts/cePghpO45Co

📘 Product Summary

The HX711 Dual Channel Weighing Sensor AD Module Shield is the most reliable, high-precision A/D converter for load cell applications. It provides 24-bit resolution, ultra-low noise amplification, dual channels, and seamless integration with Arduino and IoT systems. Perfect for digital weighing scales, automation, smart agriculture, and professional measurement equipment.