Hi, I am using the following program to test Lora on this model. However, i receive this error: [SX1262] Initializing... Failed, code: -2. I assume that i am using the correct ports as given in rthe documentation. Any suggestions ? Thanks ```
#include <RadioLib.h>
//#include <arduino.h>
#include <M5Unified.h>
#include <SPI.h>
// SX1262: CS, IRQ, NRST, BUSY
SX1262 radio = new Module(23, 7, RADIOLIB_NC, 19);
bool receiveFlag = false; // flag to indicate that a packet was received
// function to be called when a complete packet is received
void setFlag(void) {
receiveFlag = true;
}
#define LORA_MISO 22 //38 //19
#define LORA_MOSI 21 //23
#define LORA_SCLK 20 //18
void setup() {
// auto cfg = M5.config();
// M5.begin(cfg);
Serial.begin(115200);
M5.begin();
delay(1000);
Serial.println("And we have started");
if (SPI.begin(LORA_SCLK, LORA_MISO, LORA_MOSI,-1)) // SCK, MISO, MOSI, SS
{
Serial.println("Fine");
M5.Display.print("SPI is fine");
}
else
{
Serial.println("Not fine");
M5.Display.print("SPI ERROR");
}
auto& ioe = M5.getIOExpander(0);
ioe.digitalWrite(7, false);
delay(100);
ioe.digitalWrite(7, true); // re-enable SX_NRST
ioe.digitalWrite(6, true); // enable SX_ANT_SW
ioe.digitalWrite(5, true); // enable SX_LNA_EN
// initialize SX1262
Serial.print("\n[SX1262] Initializing... ");
// frequency MHz, bandwidth kHz, spreading factor, coding rate denominator, sync word,
// output power dBm, preamble length, TCXO reference voltage, useRegulatorLDO
int beginState = radio.begin(868.0, 125.0, 12, 5, 0x34, 22, 20, 3.0, true);
if (beginState == RADIOLIB_ERR_NONE) {
Serial.println("Succeeded!");
} else {
Serial.print("Failed, code: ");
Serial.println(beginState);
while (true) { delay(100); }
}
// set the function to be called when a new packet is received
radio.setPacketReceivedAction(setFlag);
// start listening for LoRa packets
Serial.print("[SX1262] Starting to listen... ");
int receiveState = radio.startReceive();
if (receiveState == RADIOLIB_ERR_NONE) {
Serial.println("Succeeded!");
} else {
Serial.print("Failed, code: ");
Serial.println(receiveState);
while (true) { delay(100); }
}
}
void loop() {
if (receiveFlag) { // check if a new packet is received
receiveFlag = false; // reset the flag
String str; // read the received data as an Arduino String
int readState = radio.readData(str);
if (readState == RADIOLIB_ERR_NONE) { // packet was received successfully
Serial.println("\n[SX1262] Received packet!");
Serial.print("[SX1262] Data: ");
Serial.println(str);
Serial.print("[SX1262] RSSI: ");
Serial.print(radio.getRSSI()); // Received Signal Strength Indicator
Serial.println(" dBm");
Serial.print("[SX1262] SNR: ");
Serial.print(radio.getSNR()); // Signal-to-Noise Ratio
Serial.println(" dB");
Serial.print("[SX1262] Frequency error: ");
Serial.print(radio.getFrequencyError());
Serial.println(" Hz");
} else if (readState == RADIOLIB_ERR_CRC_MISMATCH) { // packet was received but malformed
Serial.println("CRC error!");
} else { // some other error occurred
Serial.print("Failed, code: ");
Serial.println(readState);
}
}
}
