Lora invalid pins mapping

[ro85ac]

I am trying to send a Lora message using this code and pins configuration from the current github project, but it's not working:

Setup Lora freq : 868000000 LORA Begin FAIL

The same code I use with SIM7000g board + Lora shield and it's working (of course different pins assignment).

I suppose that the pins are mapped incorrectly. If we look into the shield description is says that the DIO is mapped to pin 26, but pin 26 doesn't exist.

Please confirm the pins, otherwise the lora shield was damaged during shipping and I will order a new one. Thanks in advance

#include <SPI.h>
#include <LoRa.h>

#define RADIO_RESET         23
#define RADIO_DIO_0         14
#define RADIO_DIO_1         13
#define RADIO_DIO_2         15
#define RADIO_CS            18
#define RADIO_MISO          19
#define RADIO_MOSI          27
#define RADIO_CLK           5

#define BAND                868E6

uint32_t counter = 0;

void setup() {
    Serial.begin(115200);
    Serial.println("Starting...");
    while (!Serial);

    Serial.println("LoRa Sender");
    SPI.begin(RADIO_CLK, RADIO_MISO, RADIO_MOSI, RADIO_CS);

    LoRa.setSPI(SPI);
    delay(1500);

    LoRa.setPins(RADIO_CS, RADIO_RESET, RADIO_DIO_0);

    Serial.printf("Setup Lora freq : %.0f\n", BAND);
    if (!LoRa.begin(BAND)) {
        Serial.println("LORA Begin FAIL");
        while (1);
    }
    Serial.println("LORA Begin PASS");
}

void loop()
{
    Serial.print("Sending packet: ");
    Serial.println(counter);

    // send packet
    LoRa.beginPacket();
    LoRa.print("hello ");
    LoRa.print(counter);
    LoRa.endPacket();

    counter++;

    delay(5000);
}

[ro85ac]

Also the higrow board is making a strage noise and warms up when connected to lora shield

https://user-images.githubusercontent.com/11976725/150478735-a56298cf-df66-4996-b403-cb77d8eeb714.MOV

[lbuque]

LilyGO T-HiGrow and T-HiGrow Lora Sheld may touch together, resulting in a short circuit.

[ro85ac]

@liangyingy it is not the distance the problem.

I have tried with 4 different boards and 2 different lora shields.

[ro85ac]

@liangyingy

Event the exact code from the git it behaves the same way (not conning to lora and strange noise, althought on the below video the sound is compressed by github). https://user-images.githubusercontent.com/11976725/151036805-d1a972f8-b0a5-4e09-8f15-da3e2ff7a601.MOV

[lbuque]

@ro85ac

1. Does t-Higrow work on its own?

2. I see a foreign body on the T-Higrow and suggest cleaning it.

3. Please line the pin base on the T-higrow weld and then attach the.The LORa Shield SMD element may have come into contact with the baseboard component.

[ro85ac]

@liangyingy the problem was soldering the lora shield to the higrow board. Now the communication is working. The problem left is the strange noise.

I was confused that the lora communication works without soldering the sim7000g board and the lora shield.