I'm Sunny Lin

Developed a high-frequency passive data acquisition system using an STM32 microcontroller combining inertial data, GPS, and real-time vehicle diagnostics via CAN BUS (OBD-II). Interrupt-driven firmware logs critical telemetry to micro SD for post-trip analysis using OpenStreetMap implemented with Python. Two iterations were built: V1 as a proof of concept to show the system works, and V2 as the more production-ready version, with new safety features and hardware improvements including a larger display with a proper UI, a custom PCB, and software additions such as ring buffers, a watchdog, error handling, a finite state machine, and additional CAN data.

3D printed 3x3 macropad with custom PCB, QMK firmware, and configurable macros. Built with a Pro Micro, KiCad PCB, and Epomaker Wisteria switches, plus an ESP32-S3 CircuitPython prototype.

Proof-of-concept hail kinetic energy sensor platform that won 1st place in ES1050. Features a self-adjusting impact platform, Arduino sensing, and Python graphing — built under a $100 budget.

ESP32-S3 plant watering system with Blynk app control, capacitive moisture sensing, safety limits, and live telemetry from a custom 3D-printed enclosure.

ESP32 media controller with LCD track display, hardware playback buttons, volume potentiometer, and a PowerShell link to the Windows Media API.