Year: 2025

BearPi-HM-Nano + Smart Street Light Expansion Board: A Prototype for Intelligent Urban Lighting

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BearPi-HM-Nano + Smart Street Light Expansion Board: A Prototype for Intelligent Urban Lighting

“In the intelligent transformation of street lights, the smallest unit of smart cities, low-cost and easy-to-deploy solutions are key to implementation. This article is based on the BearPi-HM-Nano development board and the E53-SC1 smart street light expansion board, constructing a standalone smart street light prototype that covers core functions such as environmental sensing, dynamic dimming, … Read more

The Future of China’s Microcomputer Industry: Intelligence, Miniaturization, and Edge Computing

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The Future of China's Microcomputer Industry: Intelligence, Miniaturization, and Edge Computing

1. Overview of Industry Concepts Microcomputer systems refer to computer systems centered around microprocessors, integrating basic functions such as computation, storage, and input/output. Their core characteristics include high integration, low power consumption, high performance, and low cost, making them widely used in personal computing, industrial control, embedded systems, smart homes, and IoT devices. Microcomputer systems … Read more

Affordable Mini PCs Under 2000 Yuan: A Look at Three Notable Models

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Affordable Mini PCs Under 2000 Yuan: A Look at Three Notable Models

Recently, there has been a trend in the desktop market where mini PCs are gradually becoming a platform for older CPUs to make a comeback. This is mainly because users in this category do not have high performance requirements; as long as there is a certain level of performance, it is sufficient, making it very … Read more

Micro:bit Quiz Buzzer Project

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Micro:bit Quiz Buzzer Project

01 Overview 1.1 Introduction In this lesson, we will create a quiz buzzer: two people will start buzzing at the same time, and the LED light of the person who presses the button first will light up. 1.2 Course Objectives Knowledge: Understand the working principle of button switches; how to control the lighting and extinguishing … Read more

Micro:bit | Comprehensive Project 05 – Rotating Chair

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Micro:bit | Comprehensive Project 05 - Rotating Chair

01 Overview 1.1 Introduction In this lesson, we will create a rotating chair similar to those found in amusement parks, controlled by buttons on the micro:bit to start and stop the rotation. 1.2 Course Objectives 【Scientific Knowledge】Understand the structure of the chair: seat board, backrest, chair legs; how to maintain the structural stability of the … Read more

Why Apple No Longer Produces LCD Screen Phones

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Why Apple No Longer Produces LCD Screen Phones

To adapt to market trends, flagship smartphones from various brands now predominantly use OLED screens, while LCD screens are gradually being phased out. To maintain market competitiveness and product positioning, Apple has followed this trend, with the iPhone 11 being the last generation to feature an LCD screen.The reasons for the popularity of OLED screens … Read more

Four Key Differences Between LED and LCD Screens Explained

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Four Key Differences Between LED and LCD Screens Explained

If we talk about which type of indoor large screen is used the most, it must be LED and LCD screens. Whether in outdoor settings or indoor environments, LED and LCD screens are widely used. So, what are the differences between the two? We will explain in detail below. LED screens and LCD screens have … Read more

Part 2 of Smart Home Project: Using LCD Screens

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Part 2 of Smart Home Project: Using LCD Screens

This image was generated by AI For project use, I won’t discuss the specific principles here. Let’s directly introduce the interface. BL—————-》Backlight pin CS—————-》Chip select pin DC—————-》Command pin RST—————》Reset pin SDA—————》Data pin SCL—————》Clock line VCC—————》Power pin GND—————》Ground pin BL: Backlight pin, there are two common ways to set it, one is to supply power directly … Read more

Huawei Isolation Module Priced at 28 Yuan: Output Voltage Configurable via Protocol, with PC Software Developed by Enthusiasts!

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Huawei Isolation Module Priced at 28 Yuan: Output Voltage Configurable via Protocol, with PC Software Developed by Enthusiasts!

A few days ago, I bought a Huawei isolation power supply for 28 yuan, model GDE25S12B, with an input voltage range of 36-75V and an output of 12V25A. It is quite compact, approximately 59mm in length and about 23mm in width, with exquisite workmanship. I bought this mainly because I stumbled upon this power module … Read more

Vietnam’s Dedicated Data Transmission Network for Party and Government Agencies (TSLCD) – 2019 Edition

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Vietnam's Dedicated Data Transmission Network for Party and Government Agencies (TSLCD) - 2019 Edition

“The Vietnam Dedicated Data Transmission Network for Party and Government Agencies (TSLCD) is identified as a component of the e-Government (CPĐT) and Digital Government (CPS) digital infrastructure. Building and developing digital infrastructure is key to successfully achieving digital transformation.”00IntroductionThis article is translated from: Announcement No. 12/2019/TT-BTTTT from the Ministry of Information and Communications: Amendments and … Read more