RadioLib/examples/SX127x_TransmitInterrupt/SX127x_TransmitInterrupt.ino

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2.9 KiB
C++

/*
KiteLib Transmit with Inerrupts Example
This example transmits LoRa packets with one second delays
between them. Each packet contains up to 256 bytes
of data, in the form of:
- Arduino String
- null-terminated char array (C-string)
- arbitrary binary data (byte array)
Other modules from SX127x family can also be used.
SX1272 lora = Kite.ModuleA;
SX1273 lora = Kite.ModuleA;
SX1276 lora = Kite.ModuleA;
SX1277 lora = Kite.ModuleA;
SX1279 lora = Kite.ModuleA;
*/
// include the library
#include <KiteLib.h>
// SX1278 module is in slot A on the shield
SX1278 lora = Kite.ModuleA;
void setup() {
Serial.begin(9600);
// initialize SX1278 with default settings
Serial.print(F("Initializing ... "));
// carrier frequency: 434.0 MHz
// bandwidth: 125.0 kHz
// spreading factor: 9
// coding rate: 7
// sync word: 0x12
// output power: 17 dBm
// current limit: 100 mA
// preamble length: 8 symbols
// amplifier gain: 0 (automatic gain control)
int state = lora.begin();
if (state == ERR_NONE) {
Serial.println(F("success!"));
} else {
Serial.print(F("failed, code "));
Serial.println(state);
while (true);
}
// set the function that will be called
// when packet transmission is finished
lora.setDio0Action(setFlag);
// start transmitting the first packet
Serial.print(F("Sending first packet ... "));
// you can transmit C-string or Arduino string up to
// 256 characters long
state = lora.startTransmit("Hello World!");
// you can also transmit byte array up to 256 bytes long
/*
byte byteArr[] = {0x01, 0x23, 0x45, 0x56,
0x78, 0xAB, 0xCD, 0xEF};
state = lora.transmit(byteArr, 8);
*/
if (state != ERR_NONE) {
Serial.print(F("failed, code "));
Serial.println(state);
}
}
// flag to indicate that a packet was received
volatile bool transmittedFlag = false;
void setFlag(void) {
// packet transmission is finished, set the flag
transmittedFlag = true;
}
void loop() {
// check if the previous transmission finished
if(transmittedFlag) {
Serial.println(F("Packet transmission finished!"));
// wait one second before next transmission
delay(1000);
// send another packet
Serial.print(F("Sending another packet ... "));
// you can transmit C-string or Arduino string up to
// 256 characters long
int state = lora.startTransmit("Hello World!");
// you can also transmit byte array up to 256 bytes long
/*
byte byteArr[] = {0x01, 0x23, 0x45, 0x56,
0x78, 0xAB, 0xCD, 0xEF};
int state = lora.transmit(byteArr, 8);
*/
if (state != ERR_NONE) {
Serial.print(F("failed, code "));
Serial.println(state);
}
}
}