Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 534
BLE推送二维码/广告的成熟方案与代码 - bluetooth蓝牙技术
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Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/components/com_comprofiler/plugin/user/plug_cbjdownloads/cbjdownloads.php on line 49

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/components/com_comprofiler/plugin/user/plug_cbblogs/cbblogs.php on line 48

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/components/com_comprofiler/plugin/user/plug_cbarticles/cbarticles.php on line 47

BLE推送二维码/广告的成熟方案与代码 一、硬件选择与成熟案例 以下是几种经过市场验证的成熟硬件方案: 1. 开发板/模块(适合原型开发) 硬件特点成本适合场景 ESP32 双核MCU + BLE/Wi-Fi,社区支持好 ¥30-80 原型验证,快速开发 nRF52840 (Adafruit/Seeed) BLE 5.0,功耗低,性能强 ¥80-150 量产前测试,高性能需求 TI CC2640/CC2652 专业BLE SoC,功耗极低 ¥50-100 电池设备,长续航需求 Raspberry Pi Pico W 低功耗 + BLE,性价比高 ¥40-70 简单原型 **推荐起点:**ESP32,因为其生态系统完善,文档多。 2. 商业成品设备(可直接部署) 设备特点价格备注 Estimote Beacon 成熟的iBeacon/Eddystone设备 $25-50/个 工业级,防水,可编程 Kontakt.io Beacon 企业级Beacon,管理平台完善 $20-40/个 适合大规模部署 RadBeacon 开源Beacon,可深度定制 $30/个 支持多种广播格式 国内:云里物里 中国品牌,支持BLE 5.0 ¥100-200 有完整管理平台 推荐商业方案: 使用 Estimote Beacon 或 云里物里 的成品,它们都提供SDK和API,可以直接编程广播自定义数据。 二、核心实现原理 广播方式选择 iBeacon格式(Apple标准) 结构:UUID + Major + Minor + TX Power 优点:iOS兼容性好,系统级支持 限制:广播数据量小(31字节) Eddystone格式(Google标准) 支持Eddystone-URL(广播一个URL) 优点:Android兼容性好,可直接在通知栏显示 限制:URL需要缩短服务 自定义Manufacturer Data 在广播包中加入自定义数据 优点:灵活,可广播任意数据(二维码内容、JSON等) 要求:必须有配套App解析 **推荐方案:**同时广播iBeacon+自定义数据,兼顾兼容性和功能。 三、完整代码示例(ESP32 + Arduino) 1. ESP32固件代码-广播二维码和广告信息 #include <BLEDevice.h> #include <BLEUtils.h> #include <BLEServer.h> // 设备配置 #define DEVICE_NAME "SmartBeacon_001" #define COMPANY_ID 0x1234 // 替换为您公司的ID // iBeacon参数 #define BEACON_UUID "a0b1c2d3-e4f5-a6b7-c8d9-e0f1a2b3c4d5" #define MAJOR 1001 #define MINOR 2001 #define TX_POWER 0xC9 // -55dBm // 二维码和广告内容 String qrCodeData = "https://example.com/pay?id=123&amount=50"; String adContent = "今日特惠:咖啡买一送一"; BLEAdvertising *pAdvertising; void setup() { Serial.begin(115200); // 初始化BLE BLEDevice::init(DEVICE_NAME); BLEServer *pServer = BLEDevice::createServer(); pAdvertising = pServer->getAdvertising(); // 设置广播参数 setupBeacon(); setupCustomData(); // 开始广播 pAdvertising->start(); Serial.println("Beacon开始广播..."); // 动态更新内容(示例:每10秒切换广告) updateAdvertisingContent(); } void loop() { // 这里可以添加动态更新逻辑 delay(10000); updateAdvertisingContent(); } void setupBeacon() { // 设置iBeacon广播数据 BLEAdvertisementData advertisementData; // iBeacon数据包结构 uint8_t beaconData[25] = { 0x02, 0x15, // iBeacon前缀 0xa0, 0xb1, 0xc2, 0xd3, 0xe4, 0xf5, 0xa6, 0xb7, // UUID部分 0xc8, 0xd9, 0xe0, 0xf1, 0xa2, 0xb3, 0xc4, 0xd5, (MAJOR >> 8) & 0xFF, MAJOR & 0xFF, // Major (MINOR >> 8) & 0xFF, MINOR & 0xFF, // Minor TX_POWER }; advertisementData....

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Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/cbPluginHandler.php on line 323

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/src/Menu/AbstractMenu.php on line 164

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 217

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 219

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 227

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 231

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 234

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 237

Deprecated: Using null as an array offset is deprecated, use an empty string instead in /var/www/html/libraries/CBLib/CB/Legacy/LegacyFoundationFunctions.php on line 239

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100
mysqli object is already closed (500 Whoops, looks like something went wrong.)

Error

HTTP 500 Whoops, looks like something went wrong.

mysqli object is already closed

Exception

Error

  1. */
  2. public function disconnect()
  3. {
  4. // Close the connection.
  5. if (\is_callable([$this->connection, 'close'])) {
  6. $this->connection->close();
  7. }
  8. parent::disconnect();
  9. }
  1. */
  2. public function disconnect()
  3. {
  4. // Close the connection.
  5. if (\is_callable([$this->connection, 'close'])) {
  6. $this->connection->close();
  7. }
  8. parent::disconnect();
  9. }
  1. *
  2. * @since 2.0.0
  3. */
  4. public function __destruct()
  5. {
  6. $this->disconnect();
  7. }
  8. /**
  9. * Alter database's character set.
  10. *
DatabaseDriver->__destruct()

Stack Trace

Error
Error:
mysqli object is already closed

  at /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318
  at mysqli->close()
     (/var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318)
  at Joomla\Database\Mysqli\MysqliDriver->disconnect()
     (/var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php:496)
  at Joomla\Database\DatabaseDriver->__destruct()                

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100