1. ESP8266WiFi Library File Download
arduino ide -> Preferences -> "Attach Board Manager URL" input:
http://arduino./stable/package_esp8266com_index.json
Project -> Load Libraries -> Manage Libraries, then pull to the end and download the library file below:
Note: If the download fails, try a few more times.
Tools -> Development Board -> NodeMCU 1.0 (ESP-12E Moudle)
ESP8266 Presentation:/Arduino/versions/2.0.0/doc/
2. PubSubClient Library File Download
Download address and description:
/knolleary/pubsubclient
/knolleary/pubsubclient/blob/master/
Then take the downloaded ZIP file and add it as Add Library.
An introduction to the publishclient library API:
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3. Introduction to the MQTT family
/search?q=MQTT
/sinat_31500569/article/category/6782744
/yangguosb/article/category/7312443
Tutorial Series
reprinted from
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