78 lines
2 KiB
C++
78 lines
2 KiB
C++
/*
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KiteLib SX127x RTTY Transmit Example
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This example sends RTTY message using SX1278's
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FSK modem.
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Other modules from SX127x family can also be used.
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SX1272 lora = Kite.ModuleA;
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SX1273 lora = Kite.ModuleA;
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SX1276 lora = Kite.ModuleA;
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SX1277 lora = Kite.ModuleA;
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SX1279 lora = Kite.ModuleA;
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*/
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// include the library
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#include <KiteLib.h>
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// SX1278 module is in slot A on the shield
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SX1278 fsk = Kite.ModuleA;
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// create RTTY client instance using the FSK module
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RTTYClient rtty(&fsk);
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void setup() {
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Serial.begin(9600);
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// initialize SX1278
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Serial.print("[SX1278] Initializing ... ");
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// carrier frequency: 434.4 MHz
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// bandwidth: 125.0 kHz
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// spreading factor: 9
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// coding rate: 7
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// sync word: 0x12
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// output power: 17 dBm
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// current limit: 100 mA
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// preamble length: 8 symbols
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// amplifier gain: 0 (automatic gain control)
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int state = fsk.beginFSK(434.4);
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if(state == ERR_NONE) {
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Serial.println("success!");
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} else {
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Serial.print("failed, code ");
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Serial.println(state);
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while(true);
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}
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// initialize RTTY client
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Serial.print("[RTTY] Initializing ... ");
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state = rtty.begin(434.4, 183, 45);
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// low frequency: 434.4 MHz
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// frequency shift: 183 Hz (must be divisible by 61!)
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// baud rate: 45 baud
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// data bits: 8
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// stop bits: 1
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if(state == ERR_NONE) {
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Serial.println("success!");
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} else {
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Serial.print("failed, code ");
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Serial.println(state);
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while(true);
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}
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}
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void loop() {
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// send 500 ms high frequency beep
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rtty.leadIn(500);
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// RTTYClient supports all methods of the Serial class
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// send the string "Hello World!", followed by
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// carriage return and line feed chracters
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rtty.println("Hello World!");
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// turn transmitter off
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fsk.standby();
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// wait for a second before transmitting again
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delay(1000);
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}
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