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Working From Taiwan
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Working From Taiwan
2 followers · 1 following
  • Yu-I Juan
  • Groningen

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Hydr0neFN/README.md

English | 繁體中文

Hey, I'm Yu-I 👋

Y1 Electrical Engineering @ Hanze University of Applied Sciences, Groningen 🇳🇱

Taiwanese maker who builds embedded systems, designs PCBs, and runs AI trading bots on a Raspberry Pi. I use AI as an ability amplifier and thinking aid, keeping up with tech and AI on a daily basis.

Thinking Loop

I use LLMs as structured thinking partners, not just code generators. My workflow chains Claude, Gemini, Copilot, and others as debaters, executors, and reviewers in a multi-model loop with checks and balances. → claude-bridges — the full breakdown + tooling.

Live Stats · updated 2026-07-22 03:41 ET · auto-generated by RPi cron

Trader (Alpaca Paper) DOWTrade (MYM Sim)
Equity $104,768.78 $1,000,665.56
Return +4.77% +0.067%
Positions 20/20 FLAT
Day P&L $+104,768.78 —
Total Trades — 12
Top MA +8.1%, BAC +6.1%, V +12.7%
Bottom HD -4.2%, AVGO -1.8%, WFC -0.6%

Equity Curve

⚡ Featured Projects

🐾 ThermaPaw Smart Pet Door

Y1 Capstone · Team Lead

ESP32-C6 + TMC2130 stepper + LD2410 radar + ToF sensor. Automated pet door with live demo featuring a real dog.

🔌 USB-C PD LED Controller PCB V2

Full KiCad design-to-bringup

CH224K + AP63205 + ESP32-C3. Control the LED strips via Smart Home ecosystem.

🤖 Multi-LLM Trading Bot

Live on RPi 4B · Paper trading

Gemini analyst → HuggingFace sentiment → Claude risk gate → Alpaca paper orders. Scans 30 large-caps every 30 min with trailing stops & AI-driven exits.

📈 DOWTrade

MYM Futures · Sim trading

3-LLM pipeline (Haiku/Gemini/DeepSeek) with hard-coded safety rails, SMA cross filter, sim-fills with pyramid scaling. FastAPI dashboard + LLM-generated daily journal.

🎮 Reaction Time Duel

Selected for Hanze Open Day

ESP32 + ESP8266 over ESP-NOW, NeoPixel, I2S audio, MPU-6050 motion sensing.

🌬️ DucoBox Silent RE

Reverse-engineered RF protocol

ESP8266 + CC1101 868 MHz → sniffed proprietary RF → Home Assistant integration for ventilation control.

🏠 Smart Home & IoT

Cross-continent Home Assistant + UniFi deployment (Taiwan ↔ Groningen), running on a single RPi 4B with Docker + Cloudflare Tunnel.

Project Stack
PCDeskCYD ESP32 CYD touchscreen — PC stats, lighting, media control
CO2 NeoPixel desk lamp + SCD41 CO₂ + BME280, HomeKit-native
Kitchen ESP8266 × 2: LD2410B presence → HomeKit + Relay
tourplan Self-hosted group trip date picker for friends
yt-subtitle-translator Real-time YouTube subtitle translator (DeepL + Google)

🛠 Tech

Embedded · ESP32 ESP8266 Arduino PlatformIO ESPHome KiCad RF 868MHz MQTT Software · C/C++ Python Flask FastAPI Docker HomeKit Design & Infra · Fusion 360 3D Printing Home Assistant UniFi Cloudflare

📍 Background

🇹🇼 Taiwan → 🇩🇪 Exchange year Germany '21–'22 → 🇳🇱 Netherlands

APCS certified · VOL-VCA (Dutch supervisor-level safety, 10yr) · IELTS 7.0/C1

Everything runs on a single Raspberry Pi 4B — because why pay for cloud when you have a $35 computer.

Pinned Loading

  1. ReactionTimeDuel ReactionTimeDuel Public archive

    Multiplayer reaction-time game with ESP32 + ESP8266 over ESP-NOW — 4 players, wireless joystick controllers, NeoPixel feedback. Showcased at Hanze Open Day.

    C

  2. smart-pet-door smart-pet-door Public archive

    Thermally sealed, motor-driven pet door with mmWave presence detection — replaces passive flap to cut HVAC loss. ESP32 + Home Assistant.

    C++

  3. trader trader Public

    Multi-LLM paper-trading system: Gemini analyst + HF sentiment + Claude risk gate -> Alpaca paper orders

    Python 1

  4. yt-subtitle-translator yt-subtitle-translator Public archive

    A realtime YT sub translator, with DeepL and Google Trans support, works in Tampermonkey or standalone.

    JavaScript 1

  5. tourplan tourplan Public

    A tiny self-hosted date-picking app for group trips — tap-to-toggle availability, no accounts, built for families (including the least tech-savvy)

    Python 1

  6. claude-bridges claude-bridges Public

    MCP bridges for cross-model consultation — lets Claude Code delegate to Copilot, Codex, and Gemini with structured role-based review

    JavaScript