testing initialization of SD card and RFM69HCW radio

testSD_RFM_init.ino

#include <RFM69.h>    //get it here: https://www.github.com/lowpowerlab/rfm69
#include <RFM69_ATC.h>
#include "Arduino.h"

// Use the external SPI SD card as storage
#include <SPI.h>
#include <SD.h>

//*********************************************************************************************
// *********** IMPORTANT SETTINGS - YOU MUST CHANGE/ONFIGURE TO FIT YOUR HARDWARE *************
//*********************************************************************************************
#define NETWORKID     100  // The same on all nodes that talk to each other
#define NODEID        1    // The unique identifier of this node
#define RECEIVER      1    // The recipient of packets

//Match frequency to the hardware version of the radio on your Feather
#define FREQUENCY     RF69_433MHZ
//#define FREQUENCY     RF69_868MHZ
//#define FREQUENCY     RF69_915MHZ
#define ENCRYPTKEY    "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
#define IS_RFM69HCW   true // set to 'true' if you are using an RFM69HCW module

#define SERIAL_BAUD   115200
#define RFM69_CS      10
#define LED           9  // onboard blinky
#define SD_PIN        7  // SD Card CS pin


//*********************************************************************************************
//*********************************************************************************************
//Auto Transmission Control - dials down transmit power to save battery
//Usually you do not need to always transmit at max output power
//By reducing TX power even a little you save a significant amount of battery power
//This setting enables this gateway to work with remote nodes that have ATC enabled to
//dial their power down to only the required level
#define ENABLE_ATC    //comment out this line to disable AUTO TRANSMISSION CONTROL
//*********************************************************************************************

//RFM69 radio = RFM69(RFM69_CS, RFM69_IRQ, IS_RFM69HCW, RFM69_IRQN);
#ifdef ENABLE_ATC
  RFM69_ATC radio;
#else
  RFM69 radio;
#endif

void setup() 
{
  Serial.begin(SERIAL_BAUD);
  initSDCard();
  initRadio();
}

void loop()
{

}
/**
 * [initRadio description]
 */
void initRadio()
{
  Serial.println("Arduino RFM69HCW Transmitter");
  //Now initialise the radio
  bool check = radio.initialize(FREQUENCY, NODEID, NETWORKID);
  if (check)
  {
    if(IS_RFM69HCW)
    {
      radio.setHighPower();    // Only for RFM69HCW & HW!
    }
    //radio.setPowerLevel(31); // power output ranges from 0 (5dBm) to 31 (20dBm)
    radio.encrypt(NULL);
    // radio.encrypt(ENCRYPTKEY);
    // radio.setFrequency(433000000);
    #ifdef ENABLE_ATC
      Serial.println("RFM69_ATC Enabled (Auto Transmission Control)");
    #endif
    // pinMode(LED, OUTPUT);
    Serial.print("\Transmitting at ");
    Serial.print(radio.getFrequency());
    Serial.println(" Hz");
  } else {
    Serial.println("Cannot initialize radio");
  }
}

/**
 * [initSDCard description]
 */
void initSDCard()
{
  Serial.println();
  Serial.print("Initializing SD card...");
  // see if the card is present and can be initialized:
  if (!SD.begin(SD_PIN))
  {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }
  Serial.println("card initialized.");
}

/**
 * [Blink description]
 * @param PIN      [description]
 * @param DELAY_MS [description]
 * @param loops    [description]
 */
void Blink(byte PIN, byte DELAY_MS, byte loops) {
  for (byte i=0; i<loops; i++)
  {
    digitalWrite(PIN,HIGH);
    delay(DELAY_MS);
    digitalWrite(PIN,LOW);
    delay(DELAY_MS);
  }
}