CCS811 Air Quality Sensor

Equivalent CO₂ (eCO₂) & TVOC Telemetry: Integrated metal-oxide (MOX) gas sensor calculates total volatile organic compounds (TVOC) and equivalent carbon dioxide (eCO₂) concentrations.

Onboard Microcontroller Engine: Built-in MCU manages sensor drive modes, digital calibration, and baseline compensation to offload calculation heavy-lifting from the host controller.

I²C Digital Interface: Communicates directly via standard I²C protocol with selectable slave addressing and programmable interrupt thresholds.

Low Power Modes: Features multiple power-saving drive modes (including 1s, 10s, and 60s sampling intervals) optimized for battery-powered IoT nodes.

Compact Breakout Form Factor: Built on a miniature breakout board with standard 2.54mm header pins for seamless breadboard prototyping and custom PCB integration.

Board Material: High-grade FR-4 glass-epoxy breakout PCB with gold-plated pin headers and MOX sensor element.

Technical Specifications:

Sensor Chip: AMS CCS811 Digital Gas Transducer.

Measurement Parameters: eCO₂ (400 – 8192 ppm) & TVOC (0 – 1187 ppb).

Operating Voltage: 1.8V – 3.6V DC (3.3V typical).

Communication Protocol: I²C Serial Interface.

Board Color: Purple PCB with White Silkscreen & Gold-Plated Pins.

Usage Advice: Connect VCC (3.3V), GND, SDA, and SCL pins; pull the WAK (Wake) pin to GND to enable I²C communication, and allow a 48-hour burn-in period for new modules to ensure accurate baseline stability.

Maintenance: Keep the sensor element clean and free of liquids, silicone compounds, or heavy dust accumulation; do not touch the active sensing surface directly.

Essential Digital Gas Diagnostic Sensor: Position as an advanced digital air quality transducer for smart home climate systems, indoor air quality monitors, HVAC ventilation automation, and classroom research kits.

Highlight Onboard MCU & Dual TVOC/eCO₂ Tracking: Emphasize how its internal MCU calculates both TVOC and eCO₂ values directly, delivering pre-calibrated digital telemetry via I²C without requiring heavy host processing.

Recommended Cross-Sell Add-ons: Pair with ENS160+AHT21 Carbon Dioxide, Air Quality, Temperature And Humidity Sensor CO2 eCO2 TVOC, MQ-135 Air Quality Gas Sensor, PMS5003 Dust laser Sensor Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Air Quality Sensor collection page as your standard digital I²C TVOC and eCO₂ sensor breakout board.