I'm San, live in Shanghai, China, 🌏, 🌌.

Major in Physics, now writes code for a living.

Interested in Astronomy, Physics, Computer Science & Technology, Hacking & Tinkering, Consumer Electrics, MCUs (like Arduino and related stuffs), Amateur radio/SDR, Sci-Fi🖖🏻, 3D Printing, and still adding more...

Communicates in 🇨🇳 Chinese, 🇺🇸 English, PHP, JavaScript, Python, Go, C, etc...; Learning 🇫🇷 French, 🇪🇸 Español, ...