YL Yifei Li

Software Engineer / Edge AI Builder / Embedded Systems Engineer

Bridging High-Performance Software, Edge AI & Embedded Systems.

The last major transformation of the world was the Internet. Now, it is AI. Each of us is living through this change.
I have already seen that the development of AI is moving into real-world applications, whether it is FSD, OpenClaw, or AI agents. I believe there will be even more applications in the physical world. Global productivity will increase dramatically. We may be able to eliminate poverty and hunger, and people may only need to work a small amount.
This is the future of human civilization that I hope to see, and it is also where I want to contribute my part.

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Featured Projects

Both hardware and software technical lanes.

C++17 / Nivida Jetson Orin Nano / Nvida TensorRT + FP16 / Edge AI

Real-Time Pose and Exercise Analytics Engine

Core engine live

A modular video engine that turns webcam or recorded footage into motion regions, tracked trajectories, or a fresh 18-joint OpenPose skeleton on every decoded frame. Its canonical pose schema and stage-level timing make future exercise analytics measurable by design.

  • C++17
  • OpenCV
  • Yolo11n
  • Jetson Orin Nano
3 pipelines / 17 joints / per-stage latency Explore the engine

AVR Microcontrollers / UART, SPI, I2C, GPIO / Raspberry Pi / Python

Chip validation, Testing, and bootloader programming frame work
Rice Lake Weighing Systems

An automated firmware validation platform on Raspberry Pi for AVR microcontrollers, accelerating hardware verification workflows for industrial weighing indicators.

  • AVR Microcontrollers
  • UART, SPI, I2C, GPIO
  • Raspberry Pi
  • Python

STM32 / FreeRTOS / IMU

Motion Activity Monitor

A real-time embedded monitor using a 6-axis IMU, RTOS queues, semaphores, and low-level I2C/UART/DMA communication patterns.

  • FreeRTOS
  • I2C
  • UART
  • DMA

Medical Firmware / BLE / DSP

Stryker Wireless Pulse Oximeter

C firmware for a resource-constrained pulse oximeter, including digital filtering to reduce motion artifacts and BLE GATT optimization.

  • C
  • BLE GATT
  • Digital Filters
  • MCU

NestJS 11 / WebSockets / Redis / PostgreSQL

Circle IM | Real-Time Messaging System

A high-performance IM platform with secure RTR refresh-token rotation, Dockerized deployment, GitHub Actions automation, and a 70% container size reduction.

  • NestJS
  • Redis
  • PostgreSQL
  • Docker

build

Technical Skills.

Languages

C, C++17/20, Python, Java, TypeScript, JavaScript

Edge AI & Vision

OpenCV, YOLOn11, TensorRT, CUDA, NVIDIA Jetson

Embedded & Hardware

FreeRTOS, Linux/Bash, UART, SPI, I2C, DMA, oscilloscopes, multimeters, hardware validation