HX711 Dual-Channel 24 Bit Precision A/D weight Pressure SensorSKU 2036

Sensors & Modules

HX711 Dual-Channel 24 Bit Precision A/D weight Pressure Sensor

₹129

01 — About

What it does

The HX711 24-Bit Precision ADC is a dedicated analog-to-digital converter designed specifically for weigh scales and industrial control applications. It amplifies the tiny signal from load cells with programmable gain and outputs digital values via a simple serial interface.

Key features

  • 24-bit ADC resolution
  • Dual-channel analog input
  • Programmable gain (32, 64, 128)
  • On-chip power supply regulator
  • Simple serial digital interface
  • On-chip active low-noise PGA
  • Low cost dedicated weigh scale solution

Good to know

  • Must connect to full-bridge load cell (4-wire)
  • Use HX711 Arduino library for easy interfacing
  • Power HX711 from same voltage as load cell excitation
  • Programmable gain affects resolution and noise
  • 10Hz mode has better noise performance than 80Hz
  • Some modules have separate analog/digital grounds – connect properly

02 — Datasheet

Specifications

09
Resolution
24-bit
Channels
2 (differential)
Gain Options
32, 64, 128
Output Data Rate
10Hz or 80Hz (selectable)
Interface
Serial (clock + data)
Operating Voltage
2.6V – 5.5V
Current
< 1.5mA
Input Offset
±0.5mV
Dimensions
~24mm x 16mm