Thomas Tran

4-layer GNC board for recovering scientific payloads. STM32H7 running FreeRTOS, a 7-state EKF for sensor fusion (BNO085 + NEO-M9N), XBee3 telemetry over a custom RF front-end, and heavy copper on motor rails. Landed under 5m from the target on a 75m drop test.

2.4 GHz LoRa downlink for rocket flight data from altitude. Wrote the bare-metal C driver for the Semtech SX1280, did the link budget, and recovered a 9.6 dB deficit by integrating an LNA into the ground station front end. Also built the Python/Tkinter ground UI.

A C++ engine with a Lua scripting layer, Box2D physics, and a Dear ImGui scene editor. Game Engine Architecture.

A 2-axis targeting gantry on an STM32. OpenCV for automated tracking, manual control parsed off Wii Remotes, and PS2 joysticks over SPI/I2C, because why not.

Multi-mode ACC and lane-keeping PD controller, modeled in Simulink and code-generated onto an NXP S32K144. Validated via hardware-in-the-loop with CAN bus traffic.

2-layer ESP32 board with dual VL53L1X time-of-flight sensors for directional people-counting. The interesting part was the state machine for resolving crossings when two people walked past in opposite directions at once.