75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
#include<Arduino.h>
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#include "HX711.h"
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// HX711 circuit wiring
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const int LOADCELL_DOUT_PIN = D2;
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const int LOADCELL_SCK_PIN = D3;
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HX711 scale;
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void setup() {
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Serial.begin(115200);
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scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
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//calibration
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Serial.println("setup");
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scale.set_scale(23805); //calibrated with 2.25kg weight
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delay(500);
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scale.tare();
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delay(2000);
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Serial.println("tared. measuring...");
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//after this taring put known weight on scale and get value from scale.get_units(10). then devide this value by the weight and use this number for set_scale(NUMBER)
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/*
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Serial.println("Before setting up the scale:");
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Serial.print("read: \t\t");
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Serial.println(scale.read()); // print a raw reading from the ADC
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Serial.print("read average: \t\t");
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Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC
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Serial.print("get value: \t\t");
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Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight (not set yet)
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Serial.print("get units: \t\t");
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Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight (not set) divided
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// by the SCALE parameter (not set yet)
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scale.set_scale(2280.f); // this value is obtained by calibrating the scale with known weights; see the README for details
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scale.tare(); // reset the scale to 0
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Serial.println("After setting up the scale:");
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Serial.print("read: \t\t");
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Serial.println(scale.read()); // print a raw reading from the ADC
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Serial.print("read average: \t\t");
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Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC
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Serial.print("get value: \t\t");
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Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight, set with tare()
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Serial.print("get units: \t\t");
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Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight, divided
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// by the SCALE parameter set with set_scale
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Serial.println("Readings:");
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*/
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}
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void loop() {
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Serial.print("reading:\t");
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Serial.println(scale.get_units(10));
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delay(100);
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/*
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scale.power_down(); // put the ADC in sleep mode
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delay(5000);
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scale.power_up();*/
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} |