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Kopplingsschema och kodexempel

Så här kopplar du Viktgivare upp till 50KG till en Arduino UNO eller ESP32, med ett exempel­sketch som du kan ladda upp direkt.

50kg Load Cell Weight Measurement with HX711

This project measures weight using a 50kg load cell connected to an Arduino Uno via an HX711 amplifier module. The sketch tares the scale at startup and repeatedly outputs the measured weight to the Serial Monitor. You can calibrate the reading by adjusting the calibration factor with a known weight.

Kopplingsschema: Viktgivare upp till 50KG på en Arduino UNO
Kopplingsschema · Klicka för att förstora
Kopplingstabell: Viktgivare upp till 50KG på en Arduino UNO
Kopplingstabell · Klicka för att förstora
50kg_Load_Cell_Weight_Measurement_with_H.ino · kompilerad och testad
/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : 50kg Load Cell Weight Measurement with HX711
 *  Board     : Arduino UNO (arduino:avr:uno)
 *  Parts     : 50kg Load Cell Weight Sensor
 *  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 LOADCELL_DOUT_PIN = 3;
const int LOADCELL_SCK_PIN = 2;

HX711 scale;

// Adjust this calibration factor after testing with a known reference weight
float calibration_factor = -7050.0;

void setup() {
  Serial.begin(115200);
  while (!Serial) {
    ; // Wait for serial port to connect
  }

  Serial.println(F("--- HX711 Load Cell Scale ---"));
  Serial.println(F("Initializing scale, do not place weight on the sensor..."));

  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale(calibration_factor);
  scale.tare(); // Reset the scale to 0

  Serial.println(F("Tare complete. Ready for measurements."));
}

void loop() {
  if (scale.is_ready()) {
    float weight = scale.get_units(5);
    Serial.print(F("Weight: "));
    Serial.print(weight, 2);
    Serial.println(F(" units"));
  } else {
    Serial.println(F("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

50kg Load Cell with HX711 Amplifier

This project reads weight values from a single 50kg half-bridge load cell using an HX711 amplifier and two 1kΩ resistors to complete the Wheatstone bridge. Connect the circuit, upload the sketch, and open the Serial Monitor at 115200 baud to view real-time weight sensor readings.

Kopplingsschema: Viktgivare upp till 50KG på en ESP32 DevKit V1
Kopplingsschema · Klicka för att förstora
Kopplingstabell: Viktgivare upp till 50KG på en ESP32 DevKit V1
Kopplingstabell · Klicka för att förstora
50kg_Load_Cell_with_HX711_Amplifier.ino · kompilerad och testad
/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : 50kg Load Cell with HX711 Amplifier
 *  Board     : ESP32 DEVKIT V1 (esp32:esp32:esp32doit-devkit-v1)
 *  Parts     : 50kg Load Cell Weight Sensor
 *  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 for HX711
const int DOUT_PIN = 19;
const int SCK_PIN = 18;

HX711 scale;

void setup() {
  Serial.begin(115200);
  Serial.println("50kg Load Cell Demo");

  scale.begin(DOUT_PIN, SCK_PIN);

  Serial.println("Taring scale... Please keep sensor unloaded.");
  delay(1000);
  scale.tare();
  Serial.println("Tare complete. Ready for readings!");
}

void loop() {
  if (scale.is_ready()) {
    long rawValue = scale.get_value(5);
    Serial.print("Raw Load Cell Value: ");
    Serial.println(rawValue);
  } else {
    Serial.println("HX711 not found or 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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