1. What Is MQTT MQTT (Message Queuing Telemetry Transport) is a lightweight, publish-subscribe based message transport protocol that is suitable for resource-constrained devices and low-bandwidth, high-latency, or unstable network environments. It is widely used in IoT applications, enabling efficient communication between sensors, actuators, and other devices. 2. How MQTT Works To understand how MQTT works, … Read more
Hello everyone, I recently worked on an IoT project and summarized the MQTT protocol. As we all know, the MQTT protocol is widely used in the IoT field. If you are not familiar with it yet, I believe this article can help you get started. mqtt protocol 1 MQTT Protocol Features Publish and Subscribe QoS … Read more
Firewall filtering rules in OpenWrt include: 1. Input Filtering Rules: Determine which packets can enter the home network through the router’s network interface, and which packets need to be blocked or discarded. 2. Output Filtering Rules: Determine which packets can leave the home network through the router’s network interface, and which packets need to be … Read more