Case Study

Embedded Thermal Management System

Closed-loop temperature controller with FSM-based logic, PWM fan actuation, and live UART telemetry dashboard.

Designed and implemented a dual-microcontroller thermal management system using an STM32 Nucleo F030R8 as the control node and an ESP32 WROVER as the UI node. The STM32 runs a formal three-state finite state machine (MONITORING, COOLING, FAULT) with hysteresis-based bang-bang control, driving a PWM-actuated fan in response to live sensor data. System telemetry is transmitted over UART to the ESP32, which renders real-time temperature, humidity, and system state on an LCD display, with a web dashboard planned for remote visualization.

Role

Embedded Systems Engineering — firmware architecture, hardware integration, and system design

Timeline

Ongoing — started April 2026

Status

In Development

Platform

STM32 Nucleo F030R8 (ARM Cortex-M0), ESP32 WROVER

Embedded CSTM32ESP32UARTPWMI2CARM Cortex-M0

View Code

A dual-microcontroller thermal management system using an STM32 Nucleo F030R8 as the control node and an ESP32 WROVER as the UI node. The STM32 runs a formal three-state FSM (MONITORING, COOLING, FAULT) with hysteresis-based bang-bang control, driving a PWM-actuated fan based on live sensor data and transmitting structured ASCII telemetry over UART every 500ms. The ESP32 parses incoming frames and renders real-time temperature, humidity, and system state on an LCD. The system was designed to handle sensor faults gracefully with a defined FAULT state and fan shutdown, keeping the STM32 control loop fully decoupled from any UI-side latency.

In progress ...

• —In progress ...