89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/*
|
|
RadioLib RF69 Receive Example
|
|
|
|
This example receives packets using RF69 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
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
void loop() {
|
|
Serial.print(F("[RF69] 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("[RF69] Data:\t\t"));
|
|
Serial.println(str);
|
|
|
|
// print RSSI (Received Signal Strength Indicator)
|
|
// of the last received packet
|
|
Serial.print(F("[RF69] RSSI:\t\t"));
|
|
Serial.print(radio.getRSSI());
|
|
Serial.println(F(" dBm"));
|
|
|
|
} 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);
|
|
|
|
}
|
|
}
|