题意：连接到 IoT Core MQTT

问题背景：

I am trying to connect to Google's MQTT server but I am getting errors I created all the certificates and registered my device (Adafruit huzzah32)

我正在尝试连接到 Google 的 MQTT 服务器，但遇到了错误。我已经创建了所有证书并注册了我的设备（Adafruit Huzzah32）

and the documentation says you connect to mqtt.googleapis.com:8883

文档中说你需要连接到 mqtt.googleapis.com:8883

So I do

WiFiClientSecure wifi;
MQTTClient client;
client.begin("mqtt.googleapis.com", 8883, wifi);

When I try to connect I use the device path

当我尝试连接时，我使用设备路径

const