This is a prototype design for a compact fume extractor. Powered by a 90x90x30mm 12V fan that was salvaged from an old Dell PC, the fan is controlled by an ESP32 and integrates seamlessly with Apple Home. This allows you to turn the fan on or off directly from your iPhone or other HomeKit-compatible devices (no hub required).

26 December 2024

Release v1.0

Changelog:

• Enhanced Design: Redesigned for better airflow and modern aesthetics.
• USB-C port compatibility: ESP32's USB-C hole now fits more accurately.
• Dimension adjustments: Slight adjustments to the main housing for improved usability and assembly.
• Improved code (v1.1 Beta):
  • Light sleep mode implemented to save power.
  • CPU frequency reduced to 80 MHz for extended battery life.

Parts needed:

• 90x90x30mm 12V Fan
• ESP32
• Relay module (5V control)
• Activated Carbon Filter
• 12V & 5V external power source (a future design will include an internal power source)
• wires, soldering iron, hot glue, etc…

How to use:

• 3D Print the Case: Print the provided STL files.
   
• Assemble the Electronics: Follow the wiring diagram to connect the ESP32, relay module, and fan.
   

• Flash the Code: Use the provided Arduino sketch to flash your ESP32 with the HomeKit integration code. HomeSpan library is required
   
• Integrate with HomeKit: Pair the device with your iPhone using the default HomeKit pairing code: 466-37-726.

Print Settings

• Material: PLA or PETG
• Layer Height: 0.3mm
• Infill: 15%
• Supports: No
• Nozzle Size: 0.4mm

This is a work-in-progress design, so feedback and suggestions are welcome!

Disclaimer: This project is not affiliated with, endorsed by, sponsored by, or otherwise associated with Apple Inc. Any references to "HomeKit" or "Apple Home" are solely intended to describe compatibility achieved through the use of open-source software, such as the HomeSpan library. This project is not certified under the "Works with Apple Home" program or any other Apple certification programs. All trademarks, service marks, and logos, including but not limited to "Apple," "Apple Home," and "HomeKit," are the exclusive property of Apple Inc. or their respective owners. No use of such marks or logos in this project, including any visual materials, is intended to imply endorsement, sponsorship, certification, or affiliation by Apple Inc. or its affiliates.