listener 1883 allow_anonymous false password_file /mosquitto/config/passwd

docker run --rm -it -v "$PWD:/mosquitto/config" eclipse-mosquitto mosquitto_passwd -c /mosquitto/config/passwd sensor

docker run -d --name mqtt -p 1883:1883 -v "$PWD:/mosquitto/config" eclipse-mosquitto

#include <WiFi.h> #include <PubSubClient.h> const char* ssid = "你的WiFi"; const char* pass = "你的密碼"; const char* broker = "192.168.1.10"; WiFiClient wifi; PubSubClient mqtt(wifi); void setup() { WiFi.begin(ssid, pass); while (WiFi.status() != WL_CONNECTED) delay(500); mqtt.setServer(broker, 1883); } void loop() { if (!mqtt.connected()) mqtt.connect("esp32-room1", "sensor", "你的MQTT密碼"); mqtt.loop(); mqtt.publish("home/room1/temperature", "25.3"); delay(10000); }

docker exec -it mqtt mosquitto_sub -u sensor -P 你的MQTT密碼 -t "home/#" -v