RadioLib/examples/RF69/RF69_Transmit_AES/RF69_Transmit_AES.ino

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2.2 KiB
C++

/*
RadioLib RF69 Transmit with AES Example
This example transmits packets using RF69 FSK radio module.
Packets are encrypted using hardware AES.
NOTE: When using address filtering, the address byte is NOT encrypted!
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 using RadioShield
// https://github.com/jgromes/RadioShield
//RF69 radio = RadioShield.ModuleA;
void setup() {
Serial.begin(9600);
// initialize RF69 with default settings
Serial.print(F("[RF69] Initializing ... "));
int state = radio.begin();
if (state == RADIOLIB_ERR_NONE) {
Serial.println(F("success!"));
} else {
Serial.print(F("failed, code "));
Serial.println(state);
while (true);
}
// set AES key to encrypt 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};
radio.setAESKey(key);
// enable AES encryption
radio.enableAES();
// AES encryption can also be disabled
/*
radio.disableAES();
*/
}
void loop() {
Serial.print(F("[RF69] Transmitting packet ... "));
// you can transmit C-string or Arduino string up to 64 characters long
int state = radio.transmit("Hello World!");
// 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);
}