/*
  RadioLib Si443x Blocking Receive Example

  This example receives packets using Si443x FSK radio module.
  To successfully receive data, the following settings have to be the same
  on both transmitter and receiver:
  - carrier frequency
  - bit rate
  - frequency deviation
  - sync word

  Using blocking receive is not recommended, as it will lead
  to significant amount of timeouts, inefficient use of processor
  time and can some miss packets!
  Instead, interrupt receive is recommended.

  Other modules from Si443x/RFM2x family can also be used.

  For default module settings, see the wiki page
  https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x

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

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

// Si4432 has the following connections:
// nSEL pin:  10
// nIRQ pin:  2
// SDN pin:   9
Si4432 radio = new Module(10, 2, 9);

// 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 Si4432 at 434 MHz
  Serial.print(F("[Si4432] 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); }
  }
}

void loop() {
  Serial.print(F("[Si4432] Waiting for incoming transmission ... "));

  // you can receive data as an Arduino String
  String str;
  int state = radio.receive(str);

  // you can also receive data as byte array
  /*
    byte byteArr[8];
    int state = radio.receive(byteArr, 8);
  */

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

    // print the data of the packet
    Serial.print(F("[Si4432] Data:\t\t"));
    Serial.println(str);

  } else if (state == RADIOLIB_ERR_RX_TIMEOUT) {
    // timeout occurred while waiting for a packet
    Serial.println(F("timeout!"));

  } else if (state == RADIOLIB_ERR_CRC_MISMATCH) {
    // packet was received, but is malformed
    Serial.println(F("CRC error!"));

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

  }
}
