Funktionspointer uint32_t Parameter übergeben

   void(*FuncPointer)(uint32_t data);

   FuncPointer = FunktionDieUint32_tAlsParameterWill;

   FuncPointer(data);

#include <Streaming.h> // die Lib findest du selber ;-)

Print &cout = Serial; // cout Emulation für "Arme"

using FuncPtr = void (*)(int);

FuncPtr callback;

void testfunc(int value)

{

  cout << F("testfunc: ") << value << endl;

}

void setup() 

{

  Serial.begin(9600);

  cout << F("start") << endl;

  if(callback) callback(4711);

  callback = testfunc;

  if(callback) callback(4712);

  callback = [](int value){cout << F("Lambda: ") << value << endl;};

  if(callback) callback(4713);

  callback = nullptr;

  if(callback) callback(4714);

  cout << F("ende") << endl;

}

void loop() 

{

}