Build Your Personal Server with Raspberry Pi: A Beginner’s Guide for Geeks

Build Your Personal Server with Raspberry Pi: A Beginner's Guide for Geeks

Have you ever thought about building your own personal server using a computer the size of a credit card? This is not a scene from a science fiction movie, but a reality! With the Raspberry Pi, you can easily create a private cloud storage, media center, AI inference platform, or an automated office assistant. This … Read more

Estimation of State of Charge for Individual Cells in a Battery Pack Based on a Single Voltage Sensor

Estimation of State of Charge for Individual Cells in a Battery Pack Based on a Single Voltage Sensor

👇Click to enter, quickly analyze CAN logs👇 This article focuses on the estimation of the state of charge (SOC) of individual cells in a series-connected heterogeneous lithium-ion battery pack, conducted under the stringent constraint of only obtaining the total terminal voltage of the battery pack. To address the bottleneck of real-time computational efficiency, the Dense … Read more

Reading, Interpolating, and Plotting ERA5 Data in MATLAB

Reading, Interpolating, and Plotting ERA5 Data in MATLAB

Click the blue text Follow us 1 Reading nc files in MATLAB After downloading the ERA5 data (for download instructions, refer to the ERA5 data CDS API download (Windows system)), the data format is .nc files. Therefore, it is necessary to read, understand the nc files, and plot the distribution of relevant variables. View nc … Read more

Introduction to PLC: Essential Guide for Beginners with Detailed Explanations of Two Basic PLC Control Programs

Introduction to PLC: Essential Guide for Beginners with Detailed Explanations of Two Basic PLC Control Programs

Hello everyone! Today, I bring you two PLC control cases that are very suitable for beginners in electrical automation, helping you quickly grasp basic programming logic. Remember to bookmark and share this with your classmates to progress together! 💡 01Sequential Start and Stop 📌 Application Scenario: In industrial ventilation systems, multiple fans often need to … Read more

Translation Reasoning in the Exam Module – De Morgan’s Laws

Translation Reasoning in the Exam Module - De Morgan's Laws

De Morgan’s Laws: The negation of the “andand set and the “or set is The core idea: The negation of a proposition is equivalent to negating each of its internalsub-propositions and changing the logical connectors (“and” becomes “or”; “or” becomes “and”) The negation of the “and set”①: It is false that he is both tall … Read more

Ansible Automated Health Check: Mastering Server Health Status in One Minute (Part 2)

Ansible Automated Health Check: Mastering Server Health Status in One Minute (Part 2)

Recently, there has been a project underway to migrate a lightweight cluster previously running on K3s to a K8s private cluster. The advantage of K3s is its lightweight nature and quick deployment, making it suitable for edge scenarios and small to medium-sized environments. However, as the complexity of the business increased, we ultimately chose the … Read more

A Lifesaving Guide to Python Data Analysis for Newcomers

A Lifesaving Guide to Python Data Analysis for Newcomers

Working with new colleagues unfamiliar with Python for data analysis has truly made me feel “powerless”—a basic data cleaning task requires repeated explanations, and when mentioning Pandas or Matplotlib, they look completely lost. In fact, getting started with data analysis isn’t that difficult; it just lacks a clear guide that goes “from basics to practical … Read more

Choosing the Right Cold-Resistant Sealant: Understanding 0°C, -10°C, and -20°C Ratings

Choosing the Right Cold-Resistant Sealant: Understanding 0°C, -10°C, and -20°C Ratings

In road maintenance and construction projects, sealants are commonly used materials for sealing cracks to prevent moisture infiltration and extend the lifespan of pavements or structures. When purchasing sealants, you often see values like 0°C, -10°C, and -20°C. What do these values represent? How should you choose the right product based on these values?ROAD MAINTENANCE01What … Read more

Getting Started with Linux: A Guide to Installing VMware and Basic Tools

Getting Started with Linux: A Guide to Installing VMware and Basic Tools

For beginners who are just getting started with Linux, setting up a suitable learning environment is the key first step, and the VMware virtual machine is a practical tool for achieving “running multiple systems on one computer“. This tutorial will guide you from 0 to complete the download and installation of VMware virtual machine, VMtools … Read more

Basic Linux Practice Multiple Choice Questions – 04

Basic Linux Practice Multiple Choice Questions - 04

16. Question: You are working on a system and want to compile a program from source code. You realize you need some development tools. In which directory do you expect to find these tools? Option 1: /usr/bin Option 2: /opt Option 3: /usr/local/bin Option 4: /usr/include Correct Answer: 3 Explanation: Development tools, such as compilers … Read more