Cristian Castro / Mbed 2 deprecated 08-Nucleo446_V2HX711

Lectura de una celda de Carga HX711.

Dependencies:   mbed

main.cpp@1:392a3fb6d177, 2021-09-03 (annotated)

Committer:
CCastrop1012
Date:
Fri Sep 03 04:51:59 2021 +0000
Revision:
1:392a3fb6d177
Parent:
0:5d67331a6e7e 
Lectura de una celda de Carga.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
franni 0:5d67331a6e7e 1 #include "mbed.h"
CCastrop1012 1:392a3fb6d177 2 #include "Hx711.h"
CCastrop1012 1:392a3fb6d177 3
CCastrop1012 1:392a3fb6d177 4 #define n_muestras 10
franni 0:5d67331a6e7e 5
CCastrop1012 1:392a3fb6d177 6 DigitalOut led(LED1);
CCastrop1012 1:392a3fb6d177 7
CCastrop1012 1:392a3fb6d177 8 Hx711 LoadCeld(A1, A0, 1, 1.0);
franni 0:5d67331a6e7e 9
franni 0:5d67331a6e7e 10 Serial rs232(USBTX, USBRX); // USB Serial Terminal
CCastrop1012 1:392a3fb6d177 11
CCastrop1012 1:392a3fb6d177 12
CCastrop1012 1:392a3fb6d177 13
CCastrop1012 1:392a3fb6d177 14
franni 0:5d67331a6e7e 15
CCastrop1012 1:392a3fb6d177 16
CCastrop1012 1:392a3fb6d177 17 float escala = 0.0;
CCastrop1012 1:392a3fb6d177 18 float offset;
franni 0:5d67331a6e7e 19 float calibration_factor = 1000; //Ajustar este valor para calibrar el peso exacto
CCastrop1012 1:392a3fb6d177 20 int averageSamples = 300;
franni 0:5d67331a6e7e 21
franni 0:5d67331a6e7e 22 int main(void)
franni 0:5d67331a6e7e 23 {
franni 0:5d67331a6e7e 24
CCastrop1012 1:392a3fb6d177 25
CCastrop1012 1:392a3fb6d177 26 for(int i = 0; i < n_muestras; i++ )
CCastrop1012 1:392a3fb6d177 27 {
CCastrop1012 1:392a3fb6d177 28 while(!LoadCeld.is_ready());
CCastrop1012 1:392a3fb6d177 29
CCastrop1012 1:392a3fb6d177 30 offset = ( offset + LoadCeld.readRaw());
CCastrop1012 1:392a3fb6d177 31
CCastrop1012 1:392a3fb6d177 32 }
franni 0:5d67331a6e7e 33
CCastrop1012 1:392a3fb6d177 34 offset = (offset / n_muestras);
CCastrop1012 1:392a3fb6d177 35 LoadCeld.set_offset(offset);
CCastrop1012 1:392a3fb6d177 36 LoadCeld.set_scale(1.0);
CCastrop1012 1:392a3fb6d177 37 rs232.printf("Offset: %.2f \n", offset);
CCastrop1012 1:392a3fb6d177 38 rs232.printf("Offset: %.2f \n", LoadCeld.get_offset());
CCastrop1012 1:392a3fb6d177 39 offset = 0.0;
CCastrop1012 1:392a3fb6d177 40
CCastrop1012 1:392a3fb6d177 41 //scale.tare(); //Reset the scale to 0
CCastrop1012 1:392a3fb6d177 42
CCastrop1012 1:392a3fb6d177 43 //long zero_factor = scale.averageValue(averageSamples); // Saca promedio de varias lecturas para estabilizar la medida
franni 0:5d67331a6e7e 44
franni 0:5d67331a6e7e 45 while (true) {
CCastrop1012 1:392a3fb6d177 46
CCastrop1012 1:392a3fb6d177 47
CCastrop1012 1:392a3fb6d177 48 for(int i = 0; i < n_muestras; i++ )
CCastrop1012 1:392a3fb6d177 49 {
CCastrop1012 1:392a3fb6d177 50 while(!LoadCeld.is_ready());
CCastrop1012 1:392a3fb6d177 51
CCastrop1012 1:392a3fb6d177 52 escala = ( escala + LoadCeld.read());
CCastrop1012 1:392a3fb6d177 53
CCastrop1012 1:392a3fb6d177 54 }
CCastrop1012 1:392a3fb6d177 55 escala = (escala / n_muestras);
CCastrop1012 1:392a3fb6d177 56 rs232.printf("Peso: %.2f \n", escala);
CCastrop1012 1:392a3fb6d177 57 escala = 0.0;
CCastrop1012 1:392a3fb6d177 58 //scale.setScale(calibration_factor);
CCastrop1012 1:392a3fb6d177 59 //float weight = scale.getGram();
CCastrop1012 1:392a3fb6d177 60 //rs232.printf("Peso: %.2f\n", weight);
CCastrop1012 1:392a3fb6d177 61 //lcd.locate(0,0);
CCastrop1012 1:392a3fb6d177 62 //lcd.printf("Peso: %.2f Grms", weight);
franni 0:5d67331a6e7e 63 led = !led; // toggle led
franni 0:5d67331a6e7e 64 wait(0.2f);
franni 0:5d67331a6e7e 65 }
franni 0:5d67331a6e7e 66 }