Ubizone / yet-another-smart-vent

Yet Another Smart Vent

This project contains most everything needed to 3D print, assemble, and flash an MQTT Smart Vent.

Here is a short video demonstration on YouTube. (Consider subscribing for future updates)

Getting Started

1. Electronics
   • Components
     • D1 Mini ESP8266
     • D1 Mini DC Power Shield
     • Batan B2122
     • Power Source Options
       • AC Adapter
       • Centralized 24V Power Supply
       • Battery Pack (needs development for power saving mode).
   • Assembly Instructions
2. 3D Printing
   • STLs
     • 2x10 Vent
     • 2x12 Vent (needs testing)
     • 3x10 Vent (needs testing)
     • 4x10 Vent
     • 4x12 Vent (needs testing)
     • 6x10 Vent
     • 6x12 Vent (needs testing)
     • ESP D1 Mini Shield Solder Spacer
   • Printing Advice
   • Assembly Instructions
3. Compile and Upload Instructions
4. MQTT Broker
   • Everything Smart Home has a good MQTT Broker Setup Video.
5. Setup
6. Testing
7. Implementation Options

Other Notes

• It is recommended to have a Static Pressure Regulating Damper installed between the main return and the main plenum. This will even out the static pressure that changes in the ducting, from opening or closing vents.
• If the previous recommendation is not possible, it may be possible to partially mitigate the static pressure issue by only closing vents (that are in a closed state) to 80% closed, when the number of closed vents is greater than 75%. This will be a feature implemented in mqtt-hvac-vent-control in the future.

Future Features

• Experiment with designing/printing 2x12, 4x12, and 6x12 vent shells as two snap-together parts.
• Add the ability to move the vent to a specific position between 0% and 100%.
• Test vents when furnace is heating. (I'm currently printing with 3DFuel Pro PLA+ which should work just fine.)
• Make open/close calibration slightly less sensitive.
• Integrate a lever to manually open/close vent louvers.
• Investigate power saving options for battery pack use.
• Investigate ESPHome as a potential option to decrease this project's complexity.
• Subscribe to an MQTT topic to clear the configuration.
• Subscribe to an MQTT topic to rerun the initial open/close calibration.
• Subscribe to an MQTT topic published by the central vent system to open the vent when that system is offline.
• Publish automatic configuration. example
• Publish debug information to an MQTT topic for easier troubleshooting.
• Add retain as an option to initial WiFi/MQTT setup.
• Implement ArduinoOTA.
• Update repo to use latest dependencies.
• Use PlatformIO for dependencies.
• Publish a distributable to Releases.

Philosophy

• Local Control
• External Integration
• Easy of Use (this will improve over time)
• Community Feedback
• Community Contributions
• Agile, Lean, and Extreme Programming Practices
• Test Driven Development (hopefully in the future)
• Mostly Decentralized Manufacturing.

Pull Requests

Pull Requests are always welcome. I would recommend starting with an issue, so that we can discuss viability and implementation.

Issues

Feel free to open an issue and I will respond as I have time. The hope is to create a system that gives consumers what they want, your feedback is important.

References

This repo is a modifcation of Hypfer's Midea Dehumidifier.