HOME
STM32 Environmental Sensor Firmware with Wi-Fi Transmission - Ongoing
Project Timeline
Oct 2025 - Current
OVERVIEW
Built an embedded environmental monitoring system using an STM32 Nucleo board interfaced with a BME680 sensor over SPI. Developed modular C firmware using FreeRTOS tasks, queues, and semaphores for real-time sampling and data handling. Implemented a UART link to an ESP32 module to transmit data wirelessly over TCP. The sensor interface is currently undergoing debugging and refinement to resolve measurement issues.
HighlightS
- Developed a FreeRTOS-based firmware architecture with modular tasks for sensor sampling, data formatting, and communication.
- Interfaced the BME680 environmental sensor with the STM32 via SPI using Bosch’s sensor API for accurate real-time measurements.
- Implemented a reliable UART protocol between the STM32 and ESP32 for continuous data streaming.
- Built a TCP transmission pipeline on the ESP32 to relay live sensor data to a remote server.
- Designed a clean separation of drivers, middleware, and application layers to improve maintainability and scalability.
- Validated data integrity across SPI → STM32 → UART → ESP32 → TCP chain using debugging tools and logic analysis.
- Reduced sensor sampling latency by optimizing task priorities and queue usage in FreeRTOS.
SKILLS
CEmbedded CARMSTM32UARTSPITCPPuttySWD/JTAGSensor Drivers (BME680)
Additional Details
lowinertia
Portfolio Builder for Engineers