RadioLib/examples/SX1231_Receive/SX1231_Receive.ino

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2.0 KiB
C++

/*
KiteLib SX1231 Receive Example
This example receives packets using SX1231 FSK radio module.
*/
// include the library
#include <KiteLib.h>
// SX1231 module is in slot A on the shield
SX1231 rf = Kite.ModuleA;
void setup() {
Serial.begin(9600);
// initialize SX1231 with default settings
Serial.print(F("[SX1231] Initializing ... "));
// carrier frequency: 434.0 MHz
// bit rate: 48.0 kbps
// Rx bandwidth: 125.0 kHz
// frequency deviation: 50.0 kHz
// output power: 13 dBm
// sync word: 0x2D 0x01
byte state = rf.begin();
if (state == ERR_NONE) {
Serial.println(F("success!"));
} else {
Serial.print(F("failed, code "));
Serial.println(state);
while (true);
}
// you can change the sync word at runtime
// sync word can be up to 8 non-zero bytes
Serial.print(F("[SX1231] Settings sync word ... "));
uint8_t syncWord[] = {0x01, 0x23};
// sync word: 0x01 0x23
// length: 2
// tolerated error bits: 0
state == rf.setSyncWord(syncWord, 2);
if (state == ERR_NONE) {
Serial.println(F("success!"));
} else if (state == ERR_INVALID_SYNC_WORD) {
Serial.println(F("invalid!"));
}
}
void loop() {
Serial.print(F("[SX1231] Waiting for incoming transmission ... "));
// you can receive data as an Arduino String
String str;
int state = rf.receive(str);
// you can also receive data as byte array
/*
byte byteArr[8];
int state = rf.receive(byteArr, 8);
*/
if (state == ERR_NONE) {
// packet was successfully received
Serial.println(F("success!"));
// print the data of the packet
Serial.print(F("[SX1231] Data:\t\t"));
Serial.println(str);
} else if (state == ERR_RX_TIMEOUT) {
// timeout occurred while waiting for a packet
Serial.println(F("timeout!"));
} else if (state == ERR_CRC_MISMATCH) {
// packet was received, but is malformed
Serial.println(F("CRC error!"));
}
}