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TinyML enabled Low Power Exhaust Fans for Smart Buildings

A prototype smart exhaust fan controlled by MCXN236 + WizFi360 + BME688 that adjusts fan operation based on air quality (VOC).

Lihan__

Published December 05, 2025

Original author: yamanoorsaiOriginal source (new tab)

TinyML enabled Low Power Exhaust Fans for Smart Buildings

Components

Hardware components

Project description

1. How WIZnet Products Are Used The project uses MCXN236 development board as the main MCU. For IoT connectivity, a WIZnet WizFi360 shield is used, enabling Wi‑Fi-based data upload and remote commands. This setup covers sensor data collection, control of actuators (fan), and network communication — showing WIZnet modules can support a full-stack embedded IoT solution. 2. Technical Implementation & Methods Sensor: BME688 measures VOC and other air‑quality parameters, communicating over I²C to the MCU. Fan Control: EMC2101 drives a DC fan with adjustable speed via I²C under MCU control…

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