80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
/*
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RadioLib AFSK Example
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This example shows hot to send audio FSK tones
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using SX1278's FSK modem.
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Other modules that can be used for AFSK:
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- SX127x/RFM9x
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- RF69
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- SX1231
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- CC1101
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- Si443x/RFM2x
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For full API reference, see the GitHub Pages
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https://jgromes.github.io/RadioLib/
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*/
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// include the library
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#include <RadioLib.h>
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// SX1278 has the following connections:
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// NSS pin: 10
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// DIO0 pin: 2
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// RESET pin: 9
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// DIO1 pin: 3
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SX1278 fsk = new Module(10, 2, 9, 3);
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// create AFSK client instance using the FSK module
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// this requires connection to the module direct
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// input pin, here connected to Arduino pin 5
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// SX127x/RFM9x: DIO2
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// RF69: DIO2
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// SX1231: DIO2
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// CC1101: GDO2
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// Si443x/RFM2x: GPIO
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AFSKClient audio(&fsk, 5);
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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(F("[SX1278] Initializing ... "));
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// carrier frequency: 434.0 MHz
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// bit rate: 48.0 kbps
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// frequency deviation: 50.0 kHz
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// Rx bandwidth: 125.0 kHz
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// output power: 13 dBm
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// current limit: 100 mA
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int state = fsk.beginFSK();
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// when using one of the non-LoRa modules for AFSK
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// (RF69, CC1101,, Si4432 etc.), use the basic begin() method
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// int state = fsk.begin();
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if(state == ERR_NONE) {
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Serial.println(F("success!"));
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} else {
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Serial.print(F("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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// AFSKClient can be used to transmit tones,
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// same as Arduino tone() function
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// 400 Hz tone
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audio.tone(400);
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delay(1000);
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// silence
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audio.noTone();
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delay(1000);
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// AFSKClient can also be used to transmit HAM-friendly
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// RTTY, Morse code, Hellschreiber, SSTV and AX.25.
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// Details on how to use AFSK are in the example
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// folders for each of the above modes.
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}
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