Upload files to "libraries/HX711/examples/HX_set_persistent"

libraries/HX711/examples/HX_set_persistent/HX_set_persistent.ino

@@ -0,0 +1,145 @@
+
+//
+//    FILE: HX_set_persistent.ino
+//  AUTHOR: Felix Moli Grao la base de Rob Tillaart
+// PURPOSE: HX711 demo
+//     URL: https://github.com/RobTillaart/HX711
+
+//scale.set_offset(-186985);
+//scale.set_scale(14.18);
+
+
+#include "HX711.h"
+#include <EEPROM.h>
+
+
+int eeAddress = 0;
+#define EEPROM_SIZE 100
+
+
+bool forced = false; // indicates that we want to enter calibration mode
+HX711 scale;
+byte buttonTare= 2;
+
+//  adjust pins if needed
+uint8_t dataPin = 6;
+uint8_t clockPin = 7;
+//  uint8_t dataPin  = 19;    //  for ESP32
+//  uint8_t clockPin = 18;    //  for ESP32
+
+//  scale.set_offset(-181815);
+//  scale.set_scale(13.79);
+struct Bascula {
+  float scala;
+  long offSet;
+};
+
+Bascula bascula;
+
+void SaveStruct(int eeAddress, Bascula bascula) {
+  EEPROM.put(eeAddress, bascula);
+  Serial.println( "Save custom object to EEPROM: " );
+  Serial.println( bascula.scala );
+  Serial.println( bascula.offSet );
+}
+
+Bascula LoadStruct(int eeAddress) {
+  EEPROM.get( eeAddress, bascula );
+  Serial.println( "Read custom object from EEPROM: " );
+  Serial.print("scale: ");Serial.println( bascula.scala );
+  Serial.print("offset: ");Serial.println( bascula.offSet );
+  return bascula;
+}
+
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println();
+  Serial.println(__FILE__);
+  Serial.print("HX711_LIB_VERSION: ");
+  Serial.println(HX711_LIB_VERSION);
+  Serial.println();
+
+  pinMode(buttonTare, INPUT_PULLUP);
+  bascula = LoadStruct(0);//load off eeprom 
+
+  scale.set_scale(bascula.scala); //read scale from eeprom position 0
+  scale.set_offset(bascula.offSet); //read offSet from eeprom position 100
+  scale.begin(dataPin, clockPin);// initiate communication
+
+  if ((bascula.scala == 0.00) || (bascula.offSet == 0) || (forced == true)) {
+
+    Serial.print("UNITS: ");
+    Serial.println(scale.get_units(10));
+
+    Serial.println("\nEmpty the scale, press a key to continue");
+    while (!Serial.available());
+    while (Serial.available()) Serial.read();
+
+    scale.tare();
+    Serial.print("UNITS: ");
+    bascula.offSet=scale.get_units(10);
+    Serial.println(bascula.offSet);
+
+
+    Serial.println("\nPut 1000 gram in the scale, press a key to continue");
+    while (!Serial.available());
+    while (Serial.available()) Serial.read();
+
+    scale.calibrate_scale(1000, 5);
+    Serial.print("UNITS: ");
+    bascula.scala=scale.get_units(10);
+    Serial.println(bascula.scala);
+
+    Serial.println("\nScale is calibrated, your calibration values:");
+
+    long scaleOffset = scale.get_offset();
+    Serial.print("\nOffset \t");
+    Serial.println(scaleOffset);
+
+    float scaleFactor = scale.get_scale();
+    Serial.print("Scale \t");
+    Serial.println(scaleFactor);
+
+    Serial.println("\nUse this code for setting zero and calibration factor permanently:");
+
+    Serial.print("\nscale.set_offset(");
+    Serial.print(scaleOffset);
+    Serial.println(");");
+    Serial.print("scale.set_scale(");
+    Serial.print(scaleFactor);
+    Serial.println(");");
+
+    Serial.println("\nPress a key to continue");
+    while (!Serial.available());
+    while (Serial.available()) Serial.read();
+
+//scale.set_offset(-88627);
+//scale.set_scale(101.05);
+
+    bascula.scala=scaleFactor;
+    bascula.offSet=scaleOffset; 
+    SaveStruct( 0, bascula);//Save to eeprom 
+  
+  } else {
+    Serial.println("The scale is calibrated... press to continue");
+    while (!Serial.available());
+    while (Serial.available()) Serial.read();
+    scale.set_offset(bascula.offSet);
+    scale.set_scale(bascula.scala);
+  }
+}
+
+
+void loop()
+{
+  if (digitalRead(buttonTare)==false){
+      scale.tare();
+      delay(500);
+       }
+
+  Serial.print("UNITS: ");
+  Serial.println(scale.get_units(15));
+  delay(250);
+}