Help！ SIX1268 fail connect to ESP32-S2 .

[skylai82]

#include <SPI.h>
#define SCK 36  // SIX1268 SCK connect to ESP32-S2  GPIO 36
#define MOSI 37 // SIX1268 MOSI connect to ESP32-S2 GPIO 37
#define MISO 35 // SIX1268 MISO connect to ESP32-S2 GPIO 35
#define SS  38  // SIX1268 NSS connect to ESP32-S2 GPIO 38

#include <LoRa.h>
#define RST 10  // SIX1268 Reset connect to ESP32-S2 的GPIO 10
#define DI01 14  // SIX1268 DIO1 connect to ESP32-S2 的GPIO 14
#define BUSY 13  // SIX1268 DIO1 connect to ESP32-S2 的GPIO 13

void setup() {
  Serial.begin(115200);
  delay(1000);
    // SPI pin set
  SPI.begin(SCK, MISO, MOSI, SS);
  Serial.println("Set SPI pin");
  delay(1000);
  // Initialize LoRa
  LoRa.setPins(SS, RST, DI0);//, BUSY_PIN for what?
  Serial.println("Set Lora pin");
  delay(1000);

  Serial.println("LoRa Receiver");

  if (!LoRa.begin(433E6)) {
    Serial.println("Starting LoRa failed!");
    //while (1);
  }
}

void loop() {
  // try to parse packet
  int packetSize = LoRa.parsePacket();
  if (packetSize) {
    // received a packet
    Serial.print("Received packet '");

    // read packet
    while (LoRa.available()) {
      Serial.print((char)LoRa.read());
    }

    // print RSSI of packet
    Serial.print("' with RSSI ");
    Serial.println(LoRa.packetRssi());
  }
}

Why connection fail???

[morganrallen]

You may need to create a new SPI interface instead of changing the pins on the default one, though I'm not 100% sure how that all work. Instead of SPI.begin... try...

// create new SPI interface
SPIClass SPI_LORA(HSPI);
SPI_LORA.begin(SCK, MISO, MOSI, SS);

// attach SPI interface to LoRa
LoRa.setSPI(SPI_LORA);

[skylai82]

/*

• ESP32-S2
• Lora SIX1268

*/

#include <SPI.h>
#define SCK 36 // SIX1268 SCK connect to ESP32-S2 的GPIO 36
#define MOSI 37 // SIX1268 MOSI connect to ESP32-S2 的GPIO 37
#define MISO 35 // SIX1268 MISO connect to ESP32-S2 的GPIO 35
#define SS 38 // SIX1268 NSS connect to ESP32-S2 的GPIO 38

#include <LoRa.h>
#define RST 10 // SIX1268 Reset connect to ESP32-S2 的GPIO 10
#define DI0 14 // SIX1268 DIO1 connect to ESP32-S2 的GPIO 14
#define BUSY 13 // SIX1268 DIO1 connect to ESP32-S2 的GPIO 13

void setup() {

Serial.begin(115200);
delay(2000);
Serial.println("");
Serial.println("LoRa Power On");

// create new SPI interface
Serial.println("create new SPI interface");
SPIClass SPI_LORA(HSPI);
SPI_LORA.begin(SCK, MISO, MOSI, SS);
delay(2000);

// attach SPI interface to LoRa
LoRa.setSPI(SPI_LORA);

Serial.println("LoRa initialization...");

if (!LoRa.begin(433E6)) {
Serial.println("LoRa initialization failed. Check your connections.");
while (1);
}
Serial.println("LoRa receiver started");
}

void loop() {

}

Tried, still failed