Alvin Li
After the schematic leaves the page原理图离开纸面以后
My route into this work is grounded in telecommunications engineering and connects STM32 embedded systems, embedded-controller work at Cirro Tech, a GaN-versus-silicon ESC final-year project, and the XJTLU Hardware Studio I helped co-found. Across them, the recurring engineering problem is whole-system behaviour—what happens when power, sensing, communication, firmware, and a physical load meet.这条路线扎根于通信工程训练，也连接着 STM32 嵌入式系统、Cirro Tech 的嵌入式控制板工作、GaN 与硅基 ESC 的本科毕业设计，以及我参与创立的 XJTLU Hardware Studio。贯穿这些经历的共同问题，是整套系统的实际表现——当电源、采样、通信、固件和真实负载接在一起，会发生什么。
I am now pursuing the Master of Science (Robotics and Intelligent Systems) at NTU. This portfolio follows the same engineering chain from assumptions in a schematic, through board bring-up, to measurements, debugging records, and handoff material another engineer can inspect. It keeps what worked, the revisions that failed, and the validation still in progress.现在我在 NTU 攻读机器人与智能系统理学硕士。这个作品档案沿着同一条工程链展开：从原理图里的设计假设，到板级 bring-up，再到可复查的测量、调试记录和交付材料。它会同时留下做成的部分、失败的版本，以及仍在推进的验证。
The engineering load path工程载荷路径
One connected practice, not four separate skill scores.一条连续的实践路径，而不是四项技能评分。
- 01System framing系统定义Power · sensing · interfaces电源 · 采样 · 接口
- 02Firmware & protocols固件与协议STM32 · ESP32 · communicationSTM32 · ESP32 · 通信
- 03Bring-up & measurement上电与测量Waveforms · thermal runs · faults波形 · 热测试 · 故障
- 04Handoff & iteration交接与迭代Pin maps · notes · next revisions引脚表 · 记录 · 下一版本
Where the chain took shape这条工程链在哪里形成
Three contexts show the method at work: making decisions, testing them, and leaving records—not a proficiency scale, but a traceable route through the practice.三个场景展示这套方法如何落到工作里：做出判断、通过测试复核，并留下记录。它们不是熟练度等级，而是一条可追溯的实践路径。
From components to bring-up从器件走到 bring-up
Cirro Tech · 2025–2026Controller-board work crossed component selection, 2-, 4-, and 6-layer PCB design, assembly, STM32 and ESP32 firmware, communication protocols, board bring-up, and handoff notes.控制板工作横跨器件选型、2/4/6 层 PCB、焊接装配、STM32 与 ESP32 固件、通信协议、板级 bring-up，以及交接记录。
Across the hardware–software boundary跨过硬件与软件的边界
Nanjing Turing + Tianjin Jintie · 2025At Nanjing Turing, Qt/C++ client modules, HTTP and TCP flows, and cross-platform builds sat on the client side of connected systems. At Tianjin Jintie, STM32 state machines, interrupts, and time-sliced polling stayed close to device behaviour.在 Nanjing Turing，Qt/C++ 客户端、HTTP 与 TCP 交互和跨平台构建位于连接系统的软件一侧；在 Tianjin Jintie，STM32 状态机、中断与时间片轮询则贴近设备行为。
Measurement changes the next revision测量决定下一次迭代
FYP + XJTLU Hardware Studio · 2024–2026The GaN-versus-silicon ESC project added repeated electrical, waveform, and thermal tests. Hardware Studio work added revision discipline from prototypes toward small-batch builds.GaN 与硅基 ESC 对比项目加入了重复的电气、波形与热测试；Hardware Studio 的工作则建立了从原型走向小批量制作的版本迭代习惯。
Current coordinates现在的位置
The work now connects motor drives, power electronics, sensing, and control as parts of one measurable system. The master's degree expands the academic context; project evidence still comes from bench work, measurements, and records.现在的实践把电机驱动、电力电子、采样与控制放进同一个可测量的系统里。硕士阶段扩展了学术背景；项目证据仍然来自台架工作、测量和记录。
- Nanyang Technological University, Singapore南洋理工大学 · 新加坡
- MSc Robotics and Intelligent Systems · 2026–present机器人与智能系统理学硕士 · 2026–至今
- Xi'an Jiaotong-Liverpool University / University of Liverpool西交利物浦大学 / 利物浦大学
- Telecommunications Engineering · First Class Honours通信工程 · 一等荣誉学位