/*
  RadioLib RF69 Blocking Transmit Example

  This example transmits packets using RF69 FSK radio module.
  Each packet contains up to 64 bytes of data, in the form of:
  - Arduino String
  - null-terminated char array (C-string)
  - arbitrary binary data (byte array)

  Using blocking transmit is not recommended, as it will lead
  to inefficient use of processor time!
  Instead, interrupt transmit is recommended.

  For default module settings, see the wiki page
  https://github.com/jgromes/RadioLib/wiki/Default-configuration#rf69sx1231

  For full API reference, see the GitHub Pages
  https://jgromes.github.io/RadioLib/
*/

// include the library
#include <RadioLib.h>

// RF69 has the following connections:
// CS pin:    10
// DIO0 pin:  2
// RESET pin: 3
RF69 radio = new Module(10, 2, 3);

// or detect the pinout automatically using RadioBoards
// https://github.com/radiolib-org/RadioBoards
/*
#define RADIO_BOARD_AUTO
#include <RadioBoards.h>
Radio radio = new RadioModule();
*/

void setup() {
  Serial.begin(9600);

  // initialize RF69 at 434 MHz
  Serial.print(F("[RF69] Initializing ... "));
  ConfigFSK_t config;
  config.frequency = 434;
  int state = radio.begin(config);
  if (state == RADIOLIB_ERR_NONE) {
    Serial.println(F("success!"));
  } else {
    Serial.print(F("failed, code "));
    Serial.println(state);
    while (true) { delay(10); }
  }

  // NOTE: some RF69 modules use high power output,
  //       those are usually marked RF69H(C/CW).
  //       To configure RadioLib for these modules,
  //       you must call setOutputPower() with
  //       second argument set to true.
  /*
    Serial.print(F("[RF69] Setting high power module ... "));
    state = radio.setOutputPower(20, true);
    if (state == RADIOLIB_ERR_NONE) {
      Serial.println(F("success!"));
    } else {
      Serial.print(F("failed, code "));
      Serial.println(state);
      while (true) { delay(10); }
    }
  */
}

// counter to keep track of transmitted packets
int count = 0;

void loop() {
  Serial.print(F("[RF69] Transmitting packet ... "));

  // you can transmit C-string or Arduino string up to 64 characters long
  String str = "Hello World! #" + String(count++);
  int state = radio.transmit(str);

  // you can also transmit byte array up to 64 bytes long
  /*
    byte byteArr[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF};
    int state = radio.transmit(byteArr, 8);
  */

  if (state == RADIOLIB_ERR_NONE) {
    // the packet was successfully transmitted
    Serial.println(F("success!"));

  } else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
    // the supplied packet was longer than 64 bytes
    Serial.println(F("too long!"));

  } else {
    // some other error occurred
    Serial.print(F("failed, code "));
    Serial.println(state);

  }

  // wait for a second before transmitting again
  delay(1000);
}
