Project Aura Air Quality Monitor: Complete Hardware Kit

Take total control of your environmental tracking with the Project Aura Complete Kit. Engineered for makers, smart-home developers, and environmental professionals, this kit provides a rock-solid, local-first hardware foundation to monitor indoor air quality with industrial precision.

Whether you are tracking airborne particulate matter, measuring ventilation efficiency, or building a highly specialized agricultural monitor to track ambient ammonia levels, Project Aura handles the data heavy lifting.

Step 1: Choose Your Core Display & Backer Kit

Select the structural backbone of your build. Every core kit includes the specialized Project Aura custom mainboard PCB, your choice of premium display, all required system interconnect cables, and the necessary assembly hardware to securely mount your components. These kits do not include the 3D printed enclosure.  This kit is for backers of the project who print their own enclosure.

📱 The 4.3″ Compact Kit

Ideal for desktop enclosures, wall-mounted control panels, or discreet room sensors. It balances space-saving compactness with high-density data readouts.

• Includes: 4.3″ High-Resolution Display, Project Aura Mainboard, Custom Wire Harness, and Mounting Hardware.

🖥️ The 7″ Pro Kit

Designed for central command dashboards, automated workshop hubs, or headless server stations where visibility from across the room is critical.

• Includes: 7″ Expanded Touchscreen Display, Project Aura Mainboard, Premium Interface Cables, and Heavy-Duty Mounting Hardware.

Included Core Sensing: The Sensirion SEN66

Every Project Aura Kit features the state-of-the-art Sensirion SEN66 multi-sensor module as its standard baseline. This all-in-one powerhouse utilizes advanced optical and metal-oxide technology to track 6 vital air parameters out of the box:

• Particulate Matter: PM1.0, PM2.5, PM4.0, and PM10

• Volatile Organic Compounds (VOCs): Paints, finishes, and cooking emissions

• Nitrogen Oxides ($NO_x$): Combustion trace gases

• Carbon Dioxide ($CO_2$): True NDIR ventilation tracking

• Climate Dynamics: High-accuracy relative humidity and temperature

Step 2: Customize with Optional Expansion Modules

The Project Aura mainboard features dedicated breakout headers, allowing you to seamlessly stack and expand your monitoring capabilities using plug-and-play Gravity-compatible modules. Customize your kit by adding any combination of the following optional components:

🚫 DFRobot SFA40 Formaldehyde (HCHO) Sensor

• Best For: Tracking new furniture off-gassing, building materials, and manufacturing environments.

• The Tech: Laboratory-grade Sensirion SFA40 solid-state electrochemical cell featuring an ultra-low 20 ppb detection limit and less than 0.3% cross-sensitivity to household alcohols or perfumes. Zero false alarms.

🛡️ DFRobot SEN0466 Carbon Monoxide (CO) Sensor

• Best For: Crucial health and safety tracking near furnaces, workshops, attached garages, or indoor combustion sources.

• The Tech: Industrial-grade electrochemical cell that isolates and tracks “the silent killer” up to 1000 ppm. Factory-calibrated with onboard signal conditioning to eliminate electromagnetic interference.

🎛️ DFRobot DFR0971 2-Channel 0-10V DAC Module

• Best For: Bridging your air data to local infrastructure (HVAC systems, VFD motor controllers, PLC cards, or automated louvers).

• The Tech: Powered by the high-precision 15-bit GP8413 chip. It converts your air quality thresholds into dual, independent, hardware-isolated 0-5V or 0-10V analog control loops to physically drive industrial ventilation fans or air scrubbers without software delays.

Kit Box Contents & Ecosystem Specs

Standard in Every Base Kit:

• 1 x Project Aura Mainboard PCB (Supports local UI and headless/web-dashboard operating modes)

• 1 x Your Chosen Display Assembly (4.3″ or 7″ Panel)

• 1 x Sensirion SEN66 Multi-Sensor Module with custom connection harness

• 1 x Complete Fastener, Screw kit

• Optional modules added at checkout include their respective Gravity-compatible interface lines.

• Power Compatibility: 5V DC via mainboard input.

• Firmware Support: Open architecture, easily integrated with local automation platforms like Home Assistant, local MQTT brokers, or standalone headless web servers.