RadioLib/examples/RF69_Receive_AES/RF69_Receive_AES.ino

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2.1 KiB
C++

/*
KiteLib RF69 Receive with AES Example
This example receives packets using RF69 FSK radio module.
Packets are decrypted using hardware AES.
NOTE: When using address filtering, the address byte is NOT encrypted!
*/
// include the library
#include <KiteLib.h>
// RF69 module is in slot A on the shield
RF69 rf = Kite.ModuleA;
void setup() {
Serial.begin(9600);
// initialize RF69 with default settings
Serial.print(F("[RF69] 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
int state = rf.begin();
if (state == ERR_NONE) {
Serial.println(F("success!"));
} else {
Serial.print(F("failed, code "));
Serial.println(state);
while (true);
}
// set AES key that will be used to decrypt the packet
// NOTE: the key must be exactly 16 bytes long!
uint8_t key[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
};
rf.setAESKey(key);
// enable AES encryption
rf.enableAES();
// AES encryption can also be disabled
/*
rf.disableAES();
*/
}
void loop() {
Serial.print(F("[RF69] 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("[RF69] 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!"));
}
}