141 lines
3.3 KiB
C++
141 lines
3.3 KiB
C++
/*
|
|
RadioLib RTTY Transmit Example
|
|
|
|
This example sends RTTY message using SX1278's
|
|
FSK modem.
|
|
|
|
Other modules that can be used for RTTY:
|
|
- SX127x/RFM9x
|
|
- RF69
|
|
- SX1231
|
|
- CC1101
|
|
- SX126x
|
|
- nRF24
|
|
- Si443x/RFM2x
|
|
- SX128x
|
|
|
|
For default module settings, see the wiki page
|
|
https://github.com/jgromes/RadioLib/wiki/Default-configuration
|
|
|
|
For full API reference, see the GitHub Pages
|
|
https://jgromes.github.io/RadioLib/
|
|
*/
|
|
|
|
// include the library
|
|
#include <RadioLib.h>
|
|
|
|
// SX1278 has the following connections:
|
|
// NSS pin: 10
|
|
// DIO0 pin: 2
|
|
// RESET pin: 9
|
|
// DIO1 pin: 3
|
|
SX1278 radio = new Module(10, 2, 9, 3);
|
|
|
|
// or using RadioShield
|
|
// https://github.com/jgromes/RadioShield
|
|
//SX1278 radio = RadioShield.ModuleA;
|
|
|
|
// create RTTY client instance using the FSK module
|
|
RTTYClient rtty(&radio);
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
|
|
// initialize SX1278 with default settings
|
|
Serial.print(F("[SX1278] Initializing ... "));
|
|
int state = radio.beginFSK();
|
|
|
|
// when using one of the non-LoRa modules for RTTY
|
|
// (RF69, CC1101, Si4432 etc.), use the basic begin() method
|
|
// int state = radio.begin();
|
|
|
|
if(state == RADIOLIB_ERR_NONE) {
|
|
Serial.println(F("success!"));
|
|
} else {
|
|
Serial.print(F("failed, code "));
|
|
Serial.println(state);
|
|
while(true);
|
|
}
|
|
|
|
// initialize RTTY client
|
|
// NOTE: RTTY frequency shift will be rounded
|
|
// to the nearest multiple of frequency step size.
|
|
// The exact value depends on the module:
|
|
// SX127x/RFM9x - 61 Hz
|
|
// RF69 - 61 Hz
|
|
// CC1101 - 397 Hz
|
|
// SX126x - 1 Hz
|
|
// nRF24 - 1000000 Hz
|
|
// Si443x/RFM2x - 156 Hz
|
|
// SX128x - 198 Hz
|
|
Serial.print(F("[RTTY] Initializing ... "));
|
|
// low ("space") frequency: 434.0 MHz
|
|
// frequency shift: 183 Hz
|
|
// baud rate: 45 baud
|
|
// encoding: ASCII (7-bit)
|
|
// stop bits: 1
|
|
state = rtty.begin(434.0, 183, 45);
|
|
if(state == RADIOLIB_ERR_NONE) {
|
|
Serial.println(F("success!"));
|
|
} else {
|
|
Serial.print(F("failed, code "));
|
|
Serial.println(state);
|
|
while(true);
|
|
}
|
|
|
|
/*
|
|
// RadioLib also provides ITA2 ("Baudot") support
|
|
rtty.begin(434, 183, 45, ITA2);
|
|
|
|
// All transmissions in loop() (strings and numbers)
|
|
// will now be encoded using ITA2 code
|
|
|
|
// ASCII characters that do not have ITA2 equivalent
|
|
// will be sent as NUL (including lower case letters!)
|
|
*/
|
|
}
|
|
|
|
void loop() {
|
|
Serial.print(F("[RTTY] Sending RTTY data ... "));
|
|
|
|
// send out idle condition for 500 ms
|
|
rtty.idle();
|
|
delay(500);
|
|
|
|
// RTTYClient supports all methods of the Serial class
|
|
|
|
// Arduino String class
|
|
String aStr = "Arduino String";
|
|
rtty.println(aStr);
|
|
|
|
// character array (C-String)
|
|
rtty.println("C-String");
|
|
|
|
// string saved in flash
|
|
rtty.println(F("Flash String"));
|
|
|
|
// character
|
|
rtty.println('c');
|
|
|
|
// byte
|
|
// formatting DEC/HEX/OCT/BIN is supported for
|
|
// any integer type (byte/int/long)
|
|
rtty.println(255, HEX);
|
|
|
|
// integer number
|
|
int i = 1000;
|
|
rtty.println(i);
|
|
|
|
// floating point number
|
|
float f = -3.1415;
|
|
rtty.println(f, 3);
|
|
|
|
// turn the transmitter off
|
|
rtty.standby();
|
|
|
|
Serial.println(F("done!"));
|
|
|
|
// wait for a second before transmitting again
|
|
delay(1000);
|
|
}
|