Tips for High-Scale MQTT Messaging with EMQ

Tips for High-Scale MQTT Messaging with EMQ

If the number of devices reaches one million, the database will have to handle two million authentication records, which will significantly affect the database’s performance. Is there a batch way to define ACL authentication? 1. ACL Authentication Rules Under normal business usage, the behavior of clients can be restricted using ACL. For example, Client A … Read more

Ultimate Evaluation of Arduino Uno Cars: An Exciting Experience

Ultimate Evaluation of Arduino Uno Cars: An Exciting Experience

On December 9, 2016, at 2:00 PM, students from Class 1 of the 15th Industrial Design major, led by Teacher Liu Jun, conducted the course review for “Electronics and Electrical Technology” in the corridor on the 4th floor of the specialized teaching building. Following the principle of “fairness, justice, and openness“, they evaluated the performance … Read more