HX711 重量感測

#include "HX711.h"

HX711 scale;

void setup() {

Serial.begin(38400);

Serial.println("HX711 Demo");

Serial.println("Initializing the scale");

// parameter "gain" is ommited; the default value 128 is used by the library

// HX711.DOUT - pin #A1

// HX711.PD_SCK - pin #A0

scale.begin(A1, A0);

Serial.println("Before setting up the scale:");

Serial.print("read: \t\t");

Serial.println(scale.read()); // print a raw reading from the ADC

Serial.print("read average: \t\t");

Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC

Serial.print("get value: \t\t");

Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight (not set yet)

Serial.print("get units: \t\t");

Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight (not set) divided

// by the SCALE parameter (not set yet)

scale.set_scale(2280.f); // this value is obtained by calibrating the scale with known weights; see the README for details

scale.tare(); // reset the scale to 0

Serial.println("After setting up the scale:");

Serial.print("read: \t\t");

Serial.println(scale.read()); // print a raw reading from the ADC

Serial.print("read average: \t\t");

Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC

Serial.print("get value: \t\t");

Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight, set with tare()

Serial.print("get units: \t\t");

Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight, divided

// by the SCALE parameter set with set_scale

Serial.println("Readings:");

}

void loop() {

Serial.print("one reading:\t");

Serial.print(scale.get_units(), 1);

Serial.print("\t| average:\t");

Serial.println(scale.get_units(10), 1);

scale.power_down(); // put the ADC in sleep mode

delay(5000);

scale.power_up();

}