99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
/*
|
|
RadioLib CC1101 Blocking Receive Example
|
|
|
|
This example receives packets using CC1101 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.
|
|
|
|
For default module settings, see the wiki page
|
|
https://github.com/jgromes/RadioLib/wiki/Default-configuration#cc1101
|
|
|
|
For full API reference, see the GitHub Pages
|
|
https://jgromes.github.io/RadioLib/
|
|
*/
|
|
|
|
// include the library
|
|
#include <RadioLib.h>
|
|
|
|
// CC1101 has the following connections:
|
|
// CS pin: 10
|
|
// GDO0 pin: 2
|
|
// RST pin: unused
|
|
// GDO2 pin: 3 (optional)
|
|
CC1101 radio = new Module(10, 2, RADIOLIB_NC, 3);
|
|
|
|
// or using RadioShield
|
|
// https://github.com/jgromes/RadioShield
|
|
//CC1101 radio = RadioShield.ModuleA;
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
|
|
// initialize CC1101 with default settings
|
|
Serial.print(F("[CC1101] 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("[CC1101] 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("[CC1101] Data:\t\t"));
|
|
Serial.println(str);
|
|
|
|
// print RSSI (Received Signal Strength Indicator)
|
|
// of the last received packet
|
|
Serial.print(F("[CC1101] RSSI:\t\t"));
|
|
Serial.print(radio.getRSSI());
|
|
Serial.println(F(" dBm"));
|
|
|
|
// print LQI (Link Quality Indicator)
|
|
// of the last received packet, lower is better
|
|
Serial.print(F("[CC1101] LQI:\t\t"));
|
|
Serial.println(radio.getLQI());
|
|
|
|
} 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);
|
|
|
|
}
|
|
}
|