Loadcell to be global, but assign Pins later on.

[ghost]

Is there a way to construct the HX711_ADC object without assingning pins right away? For my program it is needed to ask for the pins of the HX711 in a dialog and then construct the HX711. All while Loadcell beeing a global object. Like this:

---

`HX711_ADC Loadcell();

void setup(){ dialog(); //user sets pin1 and pin2 through serial dialog HX711_ADC Loadcell(pin1, pin2); }`

---

Thanks for anyone who can help!

[foofel]

you could create a pointer and asign int later on.

HX711_ADC *loadCell = nullptr;
...
loadCell = new HX711_ADC(pin1, pin2)

[ghost]

I tried it but it throws an error: request for member 'begin' in 'LoadCell', which is of pointer type 'HX711_ADC*' (maybe you meant to use '->' ?)

Code to recreate:

#include <HX711_ADC.h>

byte pin1;
byte pin2;

HX711_ADC *loadCell = nullptr;

void setup() {
  Serial.begin(57600);
  setPins();
  loadCell = new HX711_ADC(pin1, pin2);
  loadCell.begin();
}

void loop() {
  // other stuff for loop
}
void setPins(){
  /* 
   *  Here would be a function that let the user input what is pin1 and pin2.
   */
  pin1 = 4;     //just for Example
  pin2 = 5;     //just for Example
}

This is not urgent at all. I'm just curious how I can do it .

[foofel]

The error mesage even shows the solution :) If you use a pointer, you have to use -> instedt of . to access the object, therefore you need to change loadCell.begin(); to loadCell->begin();. you have to do this everyehwere you use the object.

[ghost]

Thank you so much. I never worked with pointers before, but will sure do now.