I'm using the e22-900t22s module, so please tell me how to receive it

Question

To connect the LoRa module to the stm32 to make wireless transmission and reception I'm trying to send and receive data using the e22-900t22s module, but I'm sending and receiving packets after checking that it's sent and received by hercules, but it's not receiving

receive

  transmissionMode();

  while (1)
  {

    HAL_UART_Receive(&huart1, (uint8_t *)rx_buffer, strlen(rx_buffer), HAL_MAX_DELAY);
    // 필요에 따라 데이터 전송 주기 조정
    HAL_Delay(1000); // 1초 간격으로 송신 (필요 시 조정 가능)
    HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_8);


  }
static void transmissionMode(void)
{
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_RESET);
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);
  strcpy(mod, "00");
}

transmit

uint8_t msgto5[33] = {
    0x00, 0x04, 0x02,
    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10,
    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10,
    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10
};
transmissionMode();
while (1)
{
  E22_send(msgto5, sizeof(msgto5));
  HAL_Delay(10000);
}

static void transmissionMode(void)
{
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_RESET);
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);
  strcpy(mod, "00");
}

void E22_send(uint8_t* message, int length)
{

    Status = HAL_UART_Transmit(&huart1, message, length, HAL_MAX_DELAY);
    if(Status == HAL_OK)
    {
        memset(tx_buffer, 0, sizeof(tx_buffer));
        memcpy(tx_buffer, message, length);
        HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_8);
    }

}

For transmission test, it was simple as above, but I haven't heard anything in the receiverWhy is that?