// Pico-SDA-SCL.ino
//
// See: https://docs.wokwi.com/parts/wokwi-pi-pico
//   1. Arduino on top of Mbed: "env": "arduino-core"
//   2. Community: "env": "arduino-community"
//
// 15 August 2022
//    The sketch should print 4 and 5 for the first I2C bus
//    Only the default definitions are printed, not the real I2C bus pins. 
//
//

#define _SERIAL_ Serial1    // Serial for real board, Serial1 for Wokwi

#include <Wire.h>

void setup()
{
  _SERIAL_.begin( 115200);
  while( !_SERIAL_)      // wait for serial port to connect. Needed for native USB
  {
    delay( 10); 
  }

//  Wire1.begin();
//  ScanWire1();

  _SERIAL_.println( "The pins are:"); 

#if defined(SDA)
  _SERIAL_.print( "SDA = ");
  _SERIAL_.println( SDA);
#endif

#if defined(SCL)
  _SERIAL_.print( "SCL = ");
  _SERIAL_.println( SCL);
#endif

#if defined(PIN_WIRE_SDA)
  _SERIAL_.print( "PIN_WIRE_SDA = ");
  _SERIAL_.println( PIN_WIRE_SDA);
#endif

#if defined(PIN_WIRE_SCL)
  _SERIAL_.print( "PIN_WIRE_SCL = ");
  _SERIAL_.println( PIN_WIRE_SCL);
#endif

#if defined(PIN_WIRE0_SDA)
  _SERIAL_.print( "PIN_WIRE0_SDA = ");
  _SERIAL_.println( PIN_WIRE0_SDA);
#endif

#if defined(PIN_WIRE0_SCL)
  _SERIAL_.print( "PIN_WIRE0_SCL = ");
  _SERIAL_.println( PIN_WIRE0_SCL);
#endif

#if defined(PIN_WIRE1_SDA)
  _SERIAL_.print( "PIN_WIRE1_SDA = ");
  _SERIAL_.println( PIN_WIRE1_SDA);
#endif

#if defined(PIN_WIRE1_SCL)
  _SERIAL_.print( "PIN_WIRE1_SCL = ");
  _SERIAL_.println( PIN_WIRE1_SCL);
#endif

#if defined(I2C_SDA)
  _SERIAL_.print( "I2C_SDA = ");
  _SERIAL_.println( I2C_SDA);
#endif

#if defined(I2C_SCL)
  _SERIAL_.print( "I2C_SCL = ");
  _SERIAL_.println( I2C_SCL);
#endif

#if defined(I2C_SDA1)
  _SERIAL_.print( "I2C_SDA1 = ");
  _SERIAL_.println( I2C_SDA1);
#endif

#if defined(I2C_SCL1)
  _SERIAL_.print( "I2C_SCL1 = ");
  _SERIAL_.println( I2C_SCL1);
#endif

#if defined(I2C_SDA2)
  _SERIAL_.print( "I2C_SDA2 = ");
  _SERIAL_.println( I2C_SDA2);
#endif

#if defined(I2C_SCL2)
  _SERIAL_.print( "I2C_SCL2 = ");
  _SERIAL_.println( I2C_SCL2);
#endif
}

void loop() {}

/*
void scanWire1() 
{
  byte error, address;
  int nDevices;
 
  _SERIAL_.println("Scanning...");
 
  nDevices = 0;
  for(address = 1; address < 127; address++ ) 
  {
    Wire1.beginTransmission(address);
    error = Wire1.endTransmission();
 
    if (error == 0) 
    {
      _SERIAL_.print("I2C device found at address 0x");
      if (address<16) 
      { 
        _SERIAL_.print("0");
      }
      _SERIAL_.print(address,HEX);
      _SERIAL_.println("  !");
 
      nDevices++;
    }    
  }
  if (nDevices == 0) 
  {
    _SERIAL_.println("No I2C devices found\n");
  } 
  else 
  {
    _SERIAL_.println("done\n");
  }
}
*/