122 lines
3 KiB
C++
122 lines
3 KiB
C++
/*
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RadioLib Hellschreiber Transmit AFSK Example
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This example sends Hellschreiber message using
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SX1278's FSK modem. The data is modulated
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as AFSK.
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Other modules that can be used for Hellschreiber
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with AFSK modulation:
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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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// or using RadioShield
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// https://github.com/jgromes/RadioShield
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//SX1278 fsk = RadioShield.ModuleA;
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// create AFSK client instance using the FSK module
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// pin 5 is connected to SX1278 DIO2
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AFSKClient audio(&fsk, 5);
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// create Hellschreiber client instance using the AFSK instance
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HellClient hell(&audio);
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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 Morse code
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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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// initialize Hellschreiber client
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Serial.print(F("[Hell] Initializing ... "));
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// AFSK tone frequency: 400 Hz
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// speed: 122.5 Baud ("Feld Hell")
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state = hell.begin(400);
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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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Serial.print(F("[Hell] Sending Hellschreiber data ... "));
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// HellClient supports all methods of the Serial class
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// NOTE: Lower case letter will be capitalized.
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// Arduino String class
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String aStr = "Arduino String";
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hell.print(aStr);
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// character array (C-String)
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hell.print("C-String");
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// string saved in flash
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hell.print(F("Flash String"));
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// character
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hell.print('c');
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// byte
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// formatting DEC/HEX/OCT/BIN is supported for
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// any integer type (byte/int/long)
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hell.print(255, HEX);
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// integer number
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int i = 1000;
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hell.print(i);
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// floating point number
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// NOTE: println() has no effect on the transmission,
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// and is only kept for compatibility reasons.
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float f = -3.1415;
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hell.println(f, 3);
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// custom glyph - must be a 7 byte array of rows 7 pixels long
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uint8_t customGlyph[] = { 0b0000000, 0b0010100, 0b0010100, 0b0000000, 0b0100010, 0b0011100, 0b0000000 };
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hell.printGlyph(customGlyph);
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Serial.println(F("done!"));
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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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