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HX711 24-Bit ADC Load Cell Amplifier Module — Dual Channel, Metal Shield, for Arduino Scale

HX711 24-Bit ADC Load Cell Amplifier Module Dual Channel, Metal Shield, for Arduino Scale

$5.56 USD

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HX711 24-Bit ADC Load Cell Amplifier Module — Dual Channel, Metal Shield

The HX711 module is a precision 24-bit analog-to-digital converter (ADC) designed specifically for weigh scale and industrial control applications. It amplifies the low-level differential signal from a load cell (strain gauge) and converts it to a 24-bit digital value readable by Arduino, ESP32, or any microcontroller via a simple 2-wire serial interface (CLK + DOUT). The metal shield version provides superior EMI shielding for stable, low-noise readings.

Key Specifications

Parameter	Value
IC	HX711
ADC Resolution	24-bit
Input Channels	2 (Channel A and Channel B)
Channel A Gain	128× or 64× (selectable)
Channel B Gain	32× (fixed)
Output Data Rate	10Hz or 80Hz (selectable via RATE pin)
Supply Voltage	2.6V – 5.5V
Interface	2-wire serial (CLK + DOUT)
Shield	Metal (EMI shielding)
Operating Temperature	-40°C to +85°C

Arduino Wiring Guide

VCC → 5V (or 3.3V)
GND → GND
DT (DOUT) → Arduino digital pin (e.g. D3)
SCK (CLK) → Arduino digital pin (e.g. D2)
Library: HX711 by bogde (Arduino Library Manager)

Why Choose Metal Shield HX711?

✅ Metal EMI shield — significantly reduces noise from nearby electronics
✅ 24-bit resolution — detects weight changes as small as 0.1g with appropriate load cell
✅ Dual channel — connect two load cells or use different gain settings
✅ Simple 2-wire interface — no I²C address conflicts, works with any 2 GPIO pins
✅ HX711 Arduino library — tare, calibration, and averaging built into library