🔍 解决ESP32蓝牙扫描问题：找不到手机设备！🚀

网上找过很多示例代码，也用过ESP32标配的示例代码，使用的是ESP32WROOM芯片板，用过BLE模式，也用过经典蓝牙模式，也用过双模模式，但仍然无法扫描到设备周围的手机的蓝牙地址，示例代码如下，请高手指点，谢谢！

/*
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
Ported to Arduino ESP32 by Evandro Copercini
*/

#include <BLEDevice.h> // 蓝牙Ble设备库
#include <BLEUtils.h>
#include <BLEScan.h> // 蓝牙ble设备的扫描功能库本篇重点
#include <BLEAdvertisedDevice.h> // 扫描到的蓝牙设备（广播状态）

int scanTime = 120; //In seconds  扫描时间
BLEScan* pBLEScan; // 扫描对象

// 扫描广播设备结果回调
class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
void onResult(BLEAdvertisedDevice advertisedDevice) {
   Serial.printf("Advertised Device: %s \n", advertisedDevice.toString().c_str());
   //Serial.printf("Advertised Device name: %s \n",advertisedDevice.getName().c_str());
   //Serial.printf("Advertised Address: %s \n",advertisedDevice.getAddress().toString().c_str());
}
};

void setup() {
  Serial.begin(115200);
  Serial.println("Scanning...");

  BLEDevice::init("ESP32TEST"); // 蓝牙设备初始化，设置设备名字
  pBLEScan = BLEDevice::getScan(); // 创建一个新扫描入口，获取扫描对象

  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());// 注册扫描结果回调
//BLE_ADDR_TYPE_PUBLIC
  pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster // 配置主动扫描
  pBLEScan->setInterval(0x50); // 配置扫描间隔时间，ms为单位
  pBLEScan->setWindow(0x30);  // less or equal setInterval value // 设置扫描窗口大小，需要小于扫描间隔
}

void loop() {
  // put your main code here, to run repeatedly:

  //启动扫描
  BLEScanResults foundDevices = pBLEScan->start(scanTime, false);// 开始扫描等待扫描结果
  Serial.print("Devices found: ");
  Serial.println(foundDevices.getCount());
  Serial.println("Scan done!");
  pBLEScan->clearResults(); // delete results fromBLEScan buffer to release memory，释放扫描缓存消耗
  delay(2000);
}

ESP32蓝牙扫描无法扫描到附近的手机设备