Electronics & Telecommunications student at VNUHCM – University of Science.
Native apps and embedded hardware, built around privacy, offline-first design, and hardware–software co-design.

App	Platforms
PHTV Vietnamese input method in 100% Swift: Telex/VNI, macro engine, spell checker. Free and open source.	macOS
vTTS On-device Vietnamese & English speech, EPUB library, background music, sleep timer, audio export, and optional LAN hosting.	iOS · iPadOS · macOS · visionOS
Pad Code AI IDE that compiles and runs C, C++, Python, JavaScript, TypeScript, Ruby, PHP, Lua, and SQL on device, with an interactive terminal, Git, and an AI assistant.	iOS · iPadOS
Pad Notes AI Apple Pencil handwriting, on-device OCR, voice memos, CloudKit sync, and an AI assistant.	iOS · iPadOS · macOS · visionOS
My NAS Manager Synology DSM client: live CPU/RAM/S.M.A.R.T. monitoring, File Station, SSH terminal, HTTPS + 2FA.	iOS · iPadOS · macOS · visionOS
LunarV Vietnamese lunar calendar with timezone-aware conversion, widgets, and holiday reminders.	iOS · iPadOS · macOS · visionOS
Lunar Block SceneKit 3D block puzzle with physics-driven fracture, synthesized audio, and layered haptics.	iOS · iPadOS · macOS · visionOS

Face-recognition smart lock on an STM32F411 + ESP32-S3/OV3660 dual-MCU architecture. Sub-0.2 s unlock over a custom checksummed UART protocol, with watchdog recovery and 24/7 security lockouts.

Embedded: STM32 · ESP32-S3 · UART DMA · I2C · ARM Cortex-M
Apple: SwiftUI · WidgetKit · PencilKit · SceneKit · CloudKit · AVAudioEngine · Combine
AI/ML: Edge inference · Face recognition · Apple Intelligence · On-device OCR
Tools: Xcode · STM32CubeIDE · GitHub Actions · Sparkle · Homebrew

"Design is not just what it looks like and feels like. Design is how it works." — Steve Jobs

This website uses React, Vite and strict TypeScript in an npm workspace. See the architecture and contributing guide for setup, shared components, image optimization and deployment checks.