🛠️ Developer Tools12
- 🎯STARCRAFT MINIMAP RADARC#, .NETDownload→
- ⏰SCHEDULED WINDOWS APP LAUNCHER + TELEGRAM REMOTEPythonDownload→
- 📌SNAPLAUNCH — Right-Click Menu Launcher for WindowsRust (egui)Download→
- 📟CNTERMINAL — Free Portable Serial TerminalRust (egui)Download→
- 🎙️VOXSAVE — Free Text-to-Speech Converter (KO·EN·ZH·JA)Rust, PythonDownload→
- 🔳Free QR Code Generator — WiFi·vCard·Logo QRJavaScriptOpen→
- 🖼️Free Image Format Converter — PNG·JPEG·WebPJavaScriptOpen→
- ✂️Free Audio Cutter — Trim to Lossless WAVNEWJavaScriptOpen→
- { }Free JSON Formatter & ValidatorNEWJavaScriptOpen→
- 🧰Mini Tools — Calculator(age·salary·char·D-day)·Game(ladder·lotto)NEWJavaScriptOpen→
- 🕹️RETRO ARCADEJavaScriptPlay→
- 🎵CELEB TVJavaScriptWatch→
📚 Lecture Blog11
- 🌐Homepage Building — HTML·CSS·JS·React·Node·DB64 lessonsEnter→
- 🐍Python — Basics·Intermediate·Advanced·Projects46 lessonsEnter→
- 🧱C — Setup·Basics·Intermediate·Advanced14 lessonsEnter→
- 🔀Git & GitHub — Branch·Remote·Rebase·Actions8 lessonsEnter→
- 🧮Python Algorithms·Data Structures·DP·Graph27 lessonsEnter→
- ⚡JavaScript — Basics·Async·DOM·Node.js25 lessonsEnter→
- ☕Java — Basics·OOP·Collections·Spring Boot26 lessonsEnter→
- 🟣C# — Basics·OOP·LINQ·async (.NET 8)22 lessonsEnter→
- 🦀Rust — Basics·Ownership·Types·async22 lessonsEnter→
- 🔌Embedded C — 8051·STM32 register-levelNEW24 lessonsEnter→
- 🤖Industrial Robot Communication — I/O·TCP/IP·RS-232·MODBUSNEW9 lessonsEnter→
Windows Apps (Download)5
STARCRAFT MINIMAP RADAR
Stack : C#, .NET
SCHEDULED WINDOWS APP LAUNCHER + TELEGRAM REMOTE
Stack : Python
SNAPLAUNCH — Right-Click Menu Launcher for Windows
Stack : Rust (egui)
CNTERMINAL — Free Portable Serial Terminal
Stack : Rust (egui)
VOXSAVE — Free Text-to-Speech Converter (KO·EN·ZH·JA)
A free converter that turns text & subtitles into MP3 speech — Korean, English, Chinese, Japanese
Stack : Rust, Python
Web Tools (In-Browser)5
Free QR Code Generator — WiFi·vCard·Logo QR
Stack : JavaScript
Free Image Format Converter — PNG·JPEG·WebP
Stack : JavaScript
Free Audio Cutter — Trim to Lossless WAV
Stack : JavaScript
Free JSON Formatter & Validator
Stack : JavaScript
Mini Tools
Calculators (age·salary·char·D-day) · Games (ladder·lotto)
Stack : JavaScript
Games & Media2
Programming Languages7
Python — Basic · Intermediate · Advanced · Practice
10 weeks Basic + 10 weeks Intermediate + 10 weeks Advanced + 16 hands-on console projects.
C — Getting Started · Basic · Intermediate · Advanced · Deep
From gcc setup to pointers, structs, file I/O and dynamic memory — all in the CLI, step by step.
JavaScript + Node.js intro
25 lessons from basics through async, DOM, fetch and modules to Node and npm.
Java + Spring Boot intro
26 lessons from basics through OOP, collections, exceptions and modern Java to Spring Boot and JPA.
C# (.NET 8 LTS) intro
22 lessons on .NET 8 LTS: basics, OOP, collections/LINQ, exceptions/IO, and modern C# (async, NRT, patterns, records).
Rust — ownership to async
22 lessons covering basics, ownership, the type system, error handling, and concurrency / async-await in Rust.
Embedded C — 8051 to STM32
24 lessons of register-level embedded C across basics·8051·STM32·applied: GPIO·timer·interrupt·UART·ADC·PWM·debouncing·ring buffer·HAL.
Web · Git · Algorithms4
Build Your Homepage — 64 lessons
5-stage full-stack series: HTML · CSS · JS · Node · DB · TypeScript · React · Git · a11y · security.
Git & GitHub Deep Dive
8 chapters: install, daily flow, branches, remotes, collaboration, undo, rebase, GitHub Actions.
Python Algorithms & Data Structures
12-week coding-test prep. From type complexity to advanced graphs and competitive patterns.
Industrial Robot Communication — I/O to MODBUS
9 hands-on lessons of robot communication on a single PC, no real robot needed: I/O handshake·Ethernet TCP/IP·RS-232·MODBUS Server/Client·monitoring·vision·robot·gripper automation cell.
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