Click the blue text for more exciting information Event-Driven Programming for Fault Diagnosis in Smart Home PLC Systems Over the years, I have worked on numerous smart home projects and discovered a common issue: when a fault occurs, everyone is completely at a loss! Homeowners call every day, and for a minor issue, I have … Read more
State machines are ubiquitous in embedded software, and you might say, what is so difficult about state machines? Aren’t they just switches? Switch is merely the most basic point; there are many more operations regarding state machines that you may not have encountered. Below, I will share several implementation methods. 1. Basic Terminology of State … Read more
Click the blue text to follow! Cost-Reducing Techniques in Event-Driven Programming for PLC Industrial Automation Systems Last month, the packaging production line that Xiao Li was responsible for encountered issues again; the equipment inexplicably stopped every three to four hours, almost delaying the delivery schedule. The factory manager was in a panic, and the maintenance … Read more
Yesterday, I received a request for help from a colleague who said that the intelligent building automation system he was responsible for was always “misbehaving”—the corridor lights would turn on and off unpredictably, and the conference room air conditioning was fluctuating between hot and cold. I immediately recognized that this was the fault of the … Read more
Implementing IoT Application Simulation Technology through PLC Event-Driven Programming Just returned from the factory, and the marks from the screwdriver on my hand haven’t faded yet. Today, I debugged a PLC-based IoT control system, and to be honest, it was incredibly smooth! I remember visiting a factory last month where their equipment was still using … Read more
Hello everyone! Today we are going to talk about a particularly practical and interesting topic—function pointers and callback mechanisms. In C++, function pointers are a tool that makes your code more flexible, allowing you to dynamically choose which function to execute at runtime. The callback mechanism is a classic application of function pointers, widely used … Read more