LAYOUT / STM32F407
Environmental IoT mainboard
Power rails, sensor interfaces and gateway connectivity for dual temperature-humidity monitoring, 4G telemetry and alarm logic.
PCB HARDWARE LAB
Boards that carry the system.
A focused record of the custom boards I designed, assembled, powered up and integrated across robots and thermal-control hardware.
09board-level evidence sets
03project families
04MCU and control domains
READ THE BOARDS
Layout shows ownership. Assembly shows bring-up. The system path explains why each interface exists.
Explore board families01 · GRADUATION DESIGN
Environmental IoT + voice multimodal boards
Two custom boards split sensing, gateway and voice interaction responsibilities across the inspection robot.
ASSEMBLED / ESP32-S3
AI voice multimodal board
Audio capture, display and long-lived edge interaction in one board: dual microphones, ES7210 ADC and QSPI touch display.
Layout and assembled evidence together show the path from interface definition to powered hardware.
02 · 智境·随驭
A modular control stack for indoor climate
Three boards separate sensing, power conversion and actuator drive so each subsystem can be tested and tuned independently.
01 / SENSOR BOARD
Multi-sensor acquisition
I2C sensing for temperature, humidity and air-quality features feeding the forecast model.
02 / POWER BOARD
Power and noise boundaries
A dedicated power board keeps conversion and switching noise away from the sampled signals.
03 / ACTUATOR BOARD
Fan / humidifier drive
PWM and relay outputs turn the LSTM+CNN forecast into physical environmental regulation.
03 · BEIJING INTERNSHIP
TEC control hardware for wearable thermal systems
The thermal-control board sits at the boundary between multiphysics simulation, TEC interfaces, sensing and prototype validation.
LAYOUT / TEC CONTROL
Thermal-control PCB
A hardware handoff point for TEC, NTC and fan interfaces, with power and control paths aligned to the thermal design.
