lta320ap05逻辑
Esp32 如何连接阿里云 mqtt?
client.subscribe("your_topic"); } else { Serial.print("Failed to connect to MQTT, rc="); Serial.println(client.state()); delay(1000); } } } void loop() { if (!client.connected()) {
client.subscribe("your_topic"); } else { Serial.print("Failed to connect to MQTT, rc="); Serial.println(client.state()); delay(1000); } } } void loop() { if (!client.connected()) {