Description
The 7Semi SGP40 VOC Air Quality Sensor Breakout is a compact digital gas-sensing module designed to measure volatile organic compounds and generate a VOC Index indicating overall indoor air quality. It communicates via I²C and includes a Qwiic / STEMMA QT connector for easy plug-and-play integration with microcontroller and IoT platforms, making it suitable for smart-home, HVAC, and portable environmental monitoring applications.
Technical Specifications:
- Sensor Model: Sensirion SGP40 VOC sensor
- Interface: I²C digital communication
- Output Format: VOC Index (0–500) and raw SRAW_VOC value
- Supply Voltage: 1.7 V to 3.6 V
- Operating Current: ~2.6–3.0 mA active, ~34 µA idle
- Measurement Range: Approx. 0–1000 ppm ethanol equivalent
- Response Time: <10 seconds typical
- Operating Conditions: –20 °C to +55 °C, 0–90% RH
- I²C Address: 0x59
- Connector Type: Qwiic / STEMMA QT and header pins
- Compatibility: 3.3 V logic microcontroller systems
Features:
- Provides real-time VOC Index for indoor air-quality evaluation
- Qwiic / STEMMA QT plug-and-play connectivity
- Low power consumption for battery-powered IoT devices
- Compact breakout board design for easy integration
- Humidity-compensated sensing for improved stability]
- Breadboard-friendly header layout for rapid prototyping
Applications:
- Indoor air-quality monitoring and ventilation control
- Smart-home automation and HVAC systems
- IoT environmental monitoring and sensor networks
- Portable and wearable air-quality devices
- Air purifier and filtration system optimization
- Research, education and prototype development