Thach Thanh Nguyen

• Designed and brought up a 4-layer KiCad PCB with jumper-selectable TPS62840 buck / STLQ020 LDO branches powering an STM32L432 + BME280 node, and wrote the bare-metal firmware for the 5 s BME280–Stop2 duty cycle (race-to-sleep).
• Built an INA228 input-side energy rig (~10k samples/s) and ran 286 verified experiments across 3.30–4.20 V — each run as a statistical unit, with confidence intervals plus ABBA and marker verification campaigns.

• Raspberry Pi greenhouse system: a REST API driving 4 active-low relay channels (pump, two fans, grow light), with sensor data streaming to the team's server and control app.
• Brought up the hardware and sensor layer on two buses — RS485/Modbus RTU (ES-Soil7 soil, DFRobot environmental sensor) and UART (SEN0220 CO₂, SEN0501) — plus relay GPIO mapping, with Python unit tests covering the GPIO, UART/Modbus and API layers.

• ESP32-S3 dual-core FreeRTOS firmware: 100 Hz MPU6050 sensing task with a filtered, speed/road-adaptive threshold fall-detection state machine (3.5 g final threshold, staged alerts, physical cancel button).
• Automatic SMS alert via GSM module (single send per crash, 10 s cancel window) and an OLED HUD fed by BLE navigation data from the phone.

Efficient FPGA-Based Hardware Noise Filtering and Real-Time Motion Detection Using RE200B Sensor on Trion T8 BGA81

Computational Intelligence in Engineering Science — Springer CCIS, 2026

Toward a Hybrid Efficient Edge-Host Smart Helmet System for Drowsiness Detection and Accident Verification using ESP32-S3

The 5th International Conference on Sustainable Development in Civil, Urban and Transportation Engineering (CUTE 2026)

DG-GhostESP-96: dark-guided low-light image enhancement on STM32H750VBT6

The 7th International Conference on Engineering, Physics, MEMS-Biosensors and Applications (ICEBA 2026)