// Example for GEVINO opto v1.5
// 18/07/2018   Giorgio Evangelista 

// Install "Arduino SAMD board"
// Use Arduino Zero Native Port

// github.com/ekstrand/ESP8266wifi
// install eeprom library https://github.com/cmaglie/FlashStorage


//  TEST_SD
#include <SD.h>
File myFile;

#include "gevino_opto_npn_io.h"

#define RS485 Serial1

void setup() {

  testLeds();

  SerialUSB.begin(115200);
  RS485.begin(115200);    // RS485
  
  gevino_io_setup();
  

//  TEST_SD  -  Write file on SD card.
  SD.begin(SD_CS);
  myFile = SD.open("example.txt", FILE_WRITE);
  myFile.close();

//  delay(1000);
//  SerialUSB.print(PORT->Group[PORTA].PINCFG.PMUXEN);

}

void loop() {
  char AlternoSerial = 0:

  if( In1 ) setLed;
  else resLed;

  if( In1 ||  In7 ) setOut1;
  else resOut1;

  if( In2 ||  In8 ) setOut2;
  else resOut2;

  if( In3 || In9 ) setOut3;
  else resOut3;

  if( In4 || In10 ) setOut4;
  else resOut4;

  if( In5 || In11 ) setOut5;
  else resOut5;

  if( In6 || In12 ) setOut6;
  else resOut6;

  if(SerialUSB) {
    static unsigned long ms;
    if (millis() - ms >= 1000){
      ms = millis();
      if( AlternoSerial ){
        SerialUSB.print("I'm happy ");
      }
      SerialUSB.println(ms);
	  
  	  set_Rs485_TxEn;
  	  RS485.print("I'm happy ");		// Send at RS485
    }
  }
  if( RS485.available() )   SerialUSB.write(RS485.read());  
  if (SERCOM0->USART.INTFLAG.bit.TXC){   //Remove Tx Enable when the last character has been sent out.
    res_Rs485_TxEn;
    SERCOM0->USART.INTFLAG.bit.TXC = 1;    
  }
}