// In diagram.json these lines
//    [ "pico:GP0", "$serialMonitor:RX", "", [] ],
//    [ "pico:GP1", "$serialMonitor:TX", "", [] ],
// were removed, so that
//     Serial instead of Serial1
// can be used. (RK)


// configuration macros so that cpp-excercises.h, 
// utils.h etc work for different boards (STM32 C031C6, ESP32 
// and Raspberry Pico), gcc compiler versions and IDEs
#define RASPI_PICO  // so that utils.h works for all boards
#define RASPI RASPI_PICO_2 | RASPI_PICO_W | RASPI_PICO
#define WOKWI_USED

#ifdef WOKWI_USED
# ifdef RASPI
#  define PRINTF_DOES_NOT_WORK
#  include <stdio.h>       // ??? does not enable printf for Wokwi Raspberry projects
#  include "pico/stdlib.h" // ??? does not enable printf for Wokwi Raspberry projects
# endif
#endif // WOKWI_USED

#if __cpp_constexpr <	201603L // April 2025: The Wokwi Raspberry Compiler is old and restricted
#  define OLD_COMPILER_INCOMPLETE_CONSTEXPR_MEMBER_FUNCTION
#  define OLD_COMPILER_NO_VARIANT
??? raus
#endif


enum class Examples { // a list of all examples
  First_Example,       // see section ???
  TrafficLights_in_C,  // see section ???
  TrafficLights_with_phases,
  TrafficLights_FSM_with_busy_waiting,
  TrafficLights_FSM_without_busy_waiting,
  TrafficLights_table_driven_state_machine,
  // Digital_Out,         // see section ???
  // Digital_In,          // see section ???

  AnalogIn_read_raw_values_in_C,        // see section ???
  AnalogIn_read_onboard_voltmeter_with_class,        // see section ???
  AnalogIn_Voltmeter,
  AnalogIn_Temperature,

  AnalogOut_Fade_LED_in_absolute_steps_ohne_Klassen,
  AnalogOut_Fade_LED_in_percent_ohne_Klassen,
  AnalogOut_Fade_LED_with_PWM_DA_Converter,
#ifdef ESP32
  AnalogOut_Fade_LED_with_DAC_DA_Converter,
#endif

  HC_SR04_Ultrasonic_Distance, // see section ???
  last_value_without_comma
};

Examples example = Examples::AnalogOut_Fade_LED_in_absolute_steps_ohne_Klassen;
#include <functional>
#include "utils.h"
#include "Trafficlights-in-C.h"
#include "Trafficlights.h"
#include "cpp-exercises.h"

void setup()
{
  setup_serial_port();
  Serial.println("Raspberry Pi Pico circuit for Embedded C++ (www.rkaiser.de)");
  N_Cpp_Exercises::setup(example);
}

void loop()
{
  N_Cpp_Exercises::loop(example);
}