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Kopplingsschema och kodexempel

Så här kopplar du HX711 Lastcellsförstärkarmodul till en Arduino UNO eller ESP32, med ett exempel­sketch som du kan ladda upp direkt.

Weight Reading with HX711 Amplifier

This example connects an HX711 24-bit ADC module to the Arduino Uno to read weight data from a load cell. On startup, the module tares (zeros) the scale and continuously prints weight measurements to the Serial Monitor.

Kopplingsschema: HX711 Lastcellsförstärkarmodul på en Arduino UNO
Kopplingsschema · Klicka för att förstora
Kopplingstabell: HX711 Lastcellsförstärkarmodul på en Arduino UNO
Kopplingstabell · Klicka för att förstora
Weight_Reading_with_HX711_Amplifier.ino · kompilerad och testad
/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : Weight Reading with HX711 Amplifier
 *  Board     : Arduino UNO (arduino:avr:uno)
 *  Parts     : HX711 Load Cell Amplifier
 *  Libraries : HX711 Arduino Library 0.7.5
 *
 *  Codey Online is an AI-powered browser IDE for Arduino and ESP32.
 *  Describe your project and Codey writes the code, draws the wiring
 *  diagram and uploads it to your board, straight from the browser.
 *  This code is free to use, modify and share, without warranty.
 * ==================================================================
 */

#include "HX711.h"

const int DOUT_PIN = 3;
const int SCK_PIN = 2;

HX711 scale;

void setup() {
  Serial.begin(115200);
  Serial.println(F("HX711 Load Cell Demo"));

  scale.begin(DOUT_PIN, SCK_PIN);

  Serial.println(F("Taring... ensure no weight is on the scale."));
  scale.set_scale();
  scale.tare();
  Serial.println(F("Tare complete. Place weight on load cell."));
}

void loop() {
  if (scale.is_ready()) {
    long reading = scale.get_units(5);
    Serial.print(F("Reading: "));
    Serial.println(reading);
  } else {
    Serial.println(F("HX711 not detected."));
  }
  delay(500);
}

Nödvändiga bibliotek: HX711 Arduino Library 0.7.5

Wiring diagram and example code generated by Codey.online — https://www.codey.online

HX711 Load Cell Weight Measurement

This project interfaces an HX711 24-bit load cell amplifier with the ESP32. On startup, the sketch tares the scale and then continuously outputs raw load cell readings to the Serial Monitor at 115200 baud. Powering the HX711 from 3.3V ensures signal levels are directly compatible with ESP32 GPIOs.

Kopplingsschema: HX711 Lastcellsförstärkarmodul på en ESP32 DevKit V1
Kopplingsschema · Klicka för att förstora
Kopplingstabell: HX711 Lastcellsförstärkarmodul på en ESP32 DevKit V1
Kopplingstabell · Klicka för att förstora
HX711_Load_Cell_Weight_Measurement.ino · kompilerad och testad
/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : HX711 Load Cell Weight Measurement
 *  Board     : ESP32 DEVKIT V1 (esp32:esp32:esp32doit-devkit-v1)
 *  Parts     : HX711 Load Cell Amplifier
 *  Libraries : HX711 Arduino Library 0.7.5
 *
 *  Codey Online is an AI-powered browser IDE for Arduino and ESP32.
 *  Describe your project and Codey writes the code, draws the wiring
 *  diagram and uploads it to your board, straight from the browser.
 *  This code is free to use, modify and share, without warranty.
 * ==================================================================
 */

#include "HX711.h"

// Pin definitions (GPIO 19 for DOUT, GPIO 18 for SCK)
const int DOUT_PIN = 19;
const int SCK_PIN = 18;

HX711 scale;

void setup() {
  Serial.begin(115200);
  while (!Serial) { delay(10); }

  Serial.println("HX711 Weight Sensor Demo");
  scale.begin(DOUT_PIN, SCK_PIN);

  Serial.println("Initializing sensor...");
  delay(1000);

  if (scale.is_ready()) {
    scale.set_scale();    // Set default scale factor
    scale.tare();         // Reset the scale to 0 (tare)
    Serial.println("Tare complete. Place weight on the load cell.");
  } else {
    Serial.println("HX711 not detected. Check wiring.");
  }
}

void loop() {
  if (scale.is_ready()) {
    long reading = scale.get_units(5); // Average of 5 readings
    Serial.print("Raw reading: ");
    Serial.println(reading);
  } else {
    Serial.println("HX711 not ready.");
  }
  delay(500);
}

Nödvändiga bibliotek: HX711 Arduino Library 0.7.5

Wiring diagram and example code generated by Codey.online — https://www.codey.online

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