This project introduces a compact sensor box that monitors both your 3D printer’s emissions and the overall air quality in your home. Powered by an ESP32 microcontroller and the user-friendly ESPHome framework, the sensor box integrates seamlessly with Home Assistant, providing a comprehensive approach to air quality management. It is customizable, affordable, and eliminates the need for expensive equipment, making it an accessible solution for monitoring air quality.
3D Printer Emission Monitor
Whether you’re an experienced DIY enthusiast or new to smart home technology, this project is designed to be both rewarding and straightforward. Its customizable design, reliance on affordable components, and easy assembly allow you to obtain reliable air quality measurements without breaking the bank. By building and tailoring this sensor box to your needs, you can create a healthier and more informed living or working environment.
TL;DR Key Takeaways :
- Monitor and improve indoor air quality by using a customizable sensor box with an ESP32 microcontroller and ESPHome framework, integrated with Home Assistant for data logging and automation.
- The sensor box tracks particles, VOCs, formaldehyde, carbon monoxide, and carbon dioxide, using cost-effective components and offering customization options for user-specific needs.
- Efficiently manage sensor data and automate responses based on air quality thresholds through seamless integration with Home Assistant, enhancing home safety and comfort.
- The hardware setup includes a custom PCB with various sensors, a display for real-time readings, and a DC-DC converter, supporting applications like FDM and resin printing, and general air quality monitoring.
- Choose appropriate sensors for different applications: AHT20 + BMP280, SGP30, and PMS5003 for FDM printing; AHT20 + BMP280, SGP30, and ZE-08 for resin printing; and AHT20 + BMP280, SGP30, PMS5003, and SCD40 for general air quality.
Comprehensive Sensor Box Features for Detailed Air Quality Analysis
The sensor box is engineered to track a wide range of air quality indicators, including:
- Particulate matter
- Volatile organic compounds (VOCs)
- Formaldehyde
- Carbon monoxide
- Carbon dioxide
Its user-friendly design incorporates cost-effective parts while maintaining high performance. A thoughtfully included button allows for screen dimming, enhancing user comfort in various lighting conditions. The customization options enable you to tailor the device to your specific monitoring needs, whether you’re focusing on FDM printing, resin printing, or general air quality assessment.
Efficient Integration and Software for Seamless Operation
The ESPHome framework serves as the backbone of the sensor box, efficiently managing and processing sensor data. By integrating with Home Assistant, the system opens up a world of smart home automation possibilities and thorough data logging capabilities. This integration allows you to set up sophisticated automation based on air quality thresholds, significantly enhancing the safety and comfort of your home environment.
Measure Emissions from Your 3D Printer
Here are more guides from our previous articles and guides related to 3D printing that you may find helpful.
Hardware and Assembly: A Closer Look
At the heart of the sensor box lies a custom printed circuit board (PCB) featuring the powerful ESP32 microcontroller. Key components include:
- Various specialized sensors for comprehensive air quality monitoring
- A display for real-time readings, providing instant feedback
- A DC-DC converter making sure stable power supply
- A user-friendly button for interaction and customization
This versatile setup supports a range of sensors, making it suitable for diverse applications such as FDM printing, resin printing, and general air quality monitoring. The modular design allows for easy upgrades or modifications as your needs evolve.
Selecting the Optimal Sensors for Your Application
For FDM printing environments, the recommended sensor combination includes the AHT20 + BMP280 for temperature and pressure, the SGP30 for VOCs, and the PMS5003 for particulate matter. Resin printing setups benefit from the AHT20 + BMP280, SGP30, and ZE-08 sensors, with the latter specifically targeting formaldehyde emissions. For comprehensive general air quality monitoring, consider using the AHT20 + BMP280, SGP30, PMS5003, and SCD40 sensors, providing a full spectrum of air quality data.
Using Home Assistant for Enhanced Monitoring and Control
Home Assistant serves as a centralized hub for monitoring and controlling your smart devices, including your air quality sensor box. It carefully logs data for in-depth analysis and visualization, empowering you to make informed decisions about your indoor environment. The platform’s robust automation features enable effective air quality management, making sure your home remains a safe and healthy space for you and your family.
Detailed Assembly Instructions for a Smooth Build Process
Follow these steps to assemble your sensor box:
1. Begin by flashing the ESP32-S2 microcontroller with the ESPHome firmware, preparing it for operation.
2. Carefully solder all components onto the PCB, making sure proper connections and alignment.
3. Install the selected sensors, making sure they are securely attached and correctly oriented.
4. Assemble the sensor box housing, verifying that all connections are secure and functional.
5. Power up the device and perform initial tests to confirm proper operation of all components.
Practical Usage and Automation for a Smarter Home
Once assembled and operational, your sensor box will provide real-time readings of various air quality parameters, offering immediate insights into your environment. To maximize its potential, consider implementing automation strategies:
- Connect smart plugs to automatically control air purifiers or ventilation systems based on air quality readings
- Set up alerts to notify you when air quality parameters exceed predefined thresholds
- Create custom dashboards in Home Assistant to visualize air quality trends over time
This project not only enhances your ability to monitor and manage air quality but also serves as an excellent platform for experimenting with Home Assistant, unlocking new possibilities for your smart home ecosystem. By actively monitoring and responding to air quality changes, you’re taking a proactive approach to creating a healthier living and working environment.
Media Credit: Made with Layers (Thomas Sanladerer)
Filed Under: DIY Projects, Guides
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