安装

命令

sudo apt-get install mosquitto mosquitto-clients

测试

测试安装是否成功

首先在一个终端输入:

mosquitto_sub -t m -d

输出打印

pi@raspberrypi:~ $ mosquitto_sub -t m -d

Client mosqsub/1782-raspberryp sending CONNECT   
Client mosqsub/1782-raspberryp received CONNACK   
Client mosqsub/1782-raspberryp sending SUBSCRIBE (Mid: 1, Topic: m, QoS: 0)   
Client mosqsub/1782-raspberryp received SUBACK   
Subscribed (mid: 1): 0

在另一个终端输入：

mosquitto_pub -t m -m "This is a message from pi publisher."

这时在订阅者那儿打印

Client mosqsub/1782-raspberryp received PUBLISH (d0, q0, r0, m0, 'm', ... (36 bytes))   
This is a message from pi publisher.

中间会间隙性打印，应该是心跳检测

Client mosqsub/1782-raspberryp sending PINGREQ
Client mosqsub/1782-raspberryp received PINGRESP

服务器broker

• MQTT入门（5）- 服务器Servers/Brokers

问题

hivemq.com say Connect failed: AMQJSC0001E Connect timed out

• https://xdk.bosch-connectivity.com/community/-/message_boards/message/194509

参考文档

• 在树莓派上安装mosquitto实现MQTT通信
• 树莓派实现MQTT通信
• https://www.switchdoc.com/2018/02/tutorial-installing-and-testing-mosquitto-mqtt-on-raspberry-pi/
• https://learn.adafruit.com/diy-esp8266-home-security-with-lua-and-mqtt/configuring-mqtt-on-the-raspberry-pi
• http://www.steves-internet-guide.com/mosquitto_pub-sub-clients/
• http://www.hivemq.com/demos/websocket-client/
• https://github.com/mqtt/mqtt.github.io/wiki/public_brokers
• https://www.hivemq.com/blog/how-to-get-started-with-mqtt/
• MQTT入门