116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/*
|
|
RadioLib SX128x GFSK Modem Example
|
|
|
|
This example shows how to use GFSK modem in SX128x chips.
|
|
|
|
NOTE: The sketch below is just a guide on how to use
|
|
GFSK modem, so this code should not be run directly!
|
|
Instead, modify the other examples to use GFSK
|
|
modem and use the appropriate configuration
|
|
methods.
|
|
|
|
For full API reference, see the GitHub Pages
|
|
https://jgromes.github.io/RadioLib/
|
|
*/
|
|
|
|
// include the library
|
|
#include <RadioLib.h>
|
|
|
|
// SX1280 has the following connections:
|
|
// NSS pin: 10
|
|
// DIO1 pin: 2
|
|
// NRST pin: 3
|
|
// BUSY pin: 9
|
|
SX1280 gfsk = new Module(10, 2, 3, 9);
|
|
|
|
// or using RadioShield
|
|
// https://github.com/jgromes/RadioShield
|
|
//SX1280 lora = RadioShield.ModuleA;
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
|
|
// initialize SX1280 with default settings
|
|
Serial.print(F("[SX1280] Initializing ... "));
|
|
// carrier frequency: 2400.0 MHz
|
|
// bit rate: 800 kbps
|
|
// frequency deviation: 400.0 kHz
|
|
// output power: 10 dBm
|
|
// preamble length: 16 bits
|
|
// coding rate: 7
|
|
// data shaping: Gaussian, BT = 0.5
|
|
// sync word: 0x2D 0x01
|
|
// CRC: enabled, CRC16 (CCIT)
|
|
int state = gfsk.beginGFSK();
|
|
if (state == ERR_NONE) {
|
|
Serial.println(F("success!"));
|
|
} else {
|
|
Serial.print(F("failed, code "));
|
|
Serial.println(state);
|
|
while (true);
|
|
}
|
|
|
|
// if needed, you can switch between LoRa and FSK modes
|
|
//
|
|
// gfsk.begin() start LoRa mode (and disable GFSK)
|
|
// lora.beginGFSK() start GFSK mode (and disable LoRa)
|
|
|
|
// the following settings can also
|
|
// be modified at run-time
|
|
state = gfsk.setFrequency(2410.5);
|
|
state = gfsk.setBitRate(200);
|
|
state = gfsk.setFrequencyDeviation(100.0);
|
|
state = gfsk.setRxBandwidth(250.0);
|
|
state = gfsk.setOutputPower(5);
|
|
state = gfsk.setDataShaping(1.0);
|
|
uint8_t syncWord[] = {0x01, 0x23, 0x45, 0x67, 0x89};
|
|
state = gfsk.setSyncWord(syncWord, 5);
|
|
if (state != ERR_NONE) {
|
|
Serial.print(F("Unable to set configuration, code "));
|
|
Serial.println(state);
|
|
while (true);
|
|
}
|
|
|
|
#warning "This sketch is just an API guide! Read the note at line 6."
|
|
}
|
|
|
|
void loop() {
|
|
// GFSK modem can use the same transmit/receive methods
|
|
// as the LoRa modem, even their interrupt-driven versions
|
|
|
|
// transmit GFSK packet
|
|
int state = gfsk.transmit("Hello World!");
|
|
/*
|
|
byte byteArr[] = {0x01, 0x23, 0x45, 0x67,
|
|
0x89, 0xAB, 0xCD, 0xEF};
|
|
int state = gfsk.transmit(byteArr, 8);
|
|
*/
|
|
if (state == ERR_NONE) {
|
|
Serial.println(F("[SX1280] Packet transmitted successfully!"));
|
|
} else if (state == ERR_PACKET_TOO_LONG) {
|
|
Serial.println(F("[SX1280] Packet too long!"));
|
|
} else if (state == ERR_TX_TIMEOUT) {
|
|
Serial.println(F("[SX1280] Timed out while transmitting!"));
|
|
} else {
|
|
Serial.println(F("[SX1280] Failed to transmit packet, code "));
|
|
Serial.println(state);
|
|
}
|
|
|
|
// receive GFSK packet
|
|
String str;
|
|
state = gfsk.receive(str);
|
|
/*
|
|
byte byteArr[8];
|
|
int state = gfsk.receive(byteArr, 8);
|
|
*/
|
|
if (state == ERR_NONE) {
|
|
Serial.println(F("[SX1280] Received packet!"));
|
|
Serial.print(F("[SX1280] Data:\t"));
|
|
Serial.println(str);
|
|
} else if (state == ERR_RX_TIMEOUT) {
|
|
Serial.println(F("[SX1280] Timed out while waiting for packet!"));
|
|
} else {
|
|
Serial.print(F("[SX1280] Failed to receive packet, code "));
|
|
Serial.println(state);
|
|
}
|
|
}
|