Leds.h

#pragma once
//------------------------------------------------------------------------------
// Generic led pin and level mapping, defines LED, LED_OFF, LED_ON
// Author: Fabien 
// License: GPL V3 © 2016 Fabien (https://github.com/fab672000)
 //-----------------------------------------------------------------------------
#if defined(ARDUINO_SAM_DUE)
//#pragma message("Due")
  const byte LED = 13;
#elif defined(STM32_MCU_SERIES)
//#pragma message("STM32 MCU")
  const byte LED = PC13;
#elif defined(ARDUINO_AVR_MICRO)
//#pragma message("Micro")
  const byte LED = 17; // TX led on micro
#elif defined(ARDUINO_AVR_PRO) || defined(ARDUINO_AVR_MINI)
//#pragma message("Mini")
  const byte LED = 13; // TX led on micro
#elif defined(ARDUINO_AVR_LEONARDO)
//#pragma message("Leonardo")
  const byte LED = 13; // TX led on micro
#elif defined(ESP8266_ESP12)
//#pragma message("NodeMCU 1.0")
  const byte LED = 13; // TX led on micro
#else 
//#pragma message("Default")
  const byte LED = 17;
#endif
#if defined(STM32_MCU_SERIES) || defined(ARDUINO_AVR_MICRO)
# define LED_ON   LOW
# define LED_OFF HIGH
#else
# define LED_OFF  LOW
# define LED_ON  HIGH
#endif  

const byte  led1 = LED;
#if defined(ARDUINO_SAM_DUE)
// revisit these later as they won't be supported for many boards
#define TXLED1
#define TXLED0
#else
const byte  led2 = TXLED1;
#endif

class Leds
{
 public:
  
  static void Setup()
  {
    pinMode(led1, OUTPUT);

#if !defined(ARDUINO_SAM_DUE)
    pinMode(led2, OUTPUT);
#endif
}
  
  static void Blink(byte led, int del=500)
  {
    digitalWrite(led, LED_ON);  
    delay(del);
    digitalWrite(led, LED_OFF); 
    delay(del);
  }
  
  static void BlinkAlternateLeds( int del=150)
  {
     delay(150);
     digitalWrite(led1, LED_ON);
     TXLED1;
     delay(150);
     digitalWrite(led1, LED_OFF);
     TXLED0;
  }
  
  static void AllLedsOff()
  {
      digitalWrite(led1, LED_OFF);
      TXLED1;
  }

  static void AliveSignal(int del = 150)
  {
    for (uint8_t i=0; i< 2; i++) BlinkAlternateLeds();
    AllLedsOff();
  }
};