SparkFun Air Quality Sensor – SGP40 (Qwiic)

Description

• SparkFun Air Quality Sensor – SGP40 (Qwiic)
• Provides a measurement of the quality of the air
• Based on Sensirions CMOSens technology
• Qwiic compatible
• Uses I2C interface
• Operating voltage range: 1.7 – 3.6 V

The SparkFun Air Quality Sensor – SGP40 (Qwiic) is a digital gas sensor designed for easy integration into air purifiers or demand-controlled ventilation systems.

Sensirions CMOSens technology offers a complete, easy-to-use sensor system on a single chip featuring a digital I2C interface and a temperature-controlled micro hotplate, providing a humidity compensated VOC-based indoor air quality signal.

View moreWhat’s Included

• 1x SparkFun Air Quality Sensor – SGP40 (Qwiic)

Dimensions

Size

• 1 x 1 inch (L x W)

Links

PDF Files

• SparkFun Air Quality Sensor – SGP40 (Qwiic) – Datasheet
• SparkFun Air Quality Sensor – SGP40 (Qwiic) – Schematics

Specifications

Uses I2C interface (Qwiic-enabled)

• I2C Address: 0x59
• 2x Qwiic connectors

Operating voltage range

• 1.7 – 3.6 V (Typ. 3.3 V)
• The Qwiic interface provides 3.3 V

Typical current consumption

• 2.6 mA during continuous operation (at 3.3 V)
• 34A when idle (heater off)

Output signal

• Digital raw value (SRAW): 0 – 65535 ticks
• Digital processed value (VOC Index): 0 – 500 VOC Index points

Switch-on behavior

• Time until reliably detecting VOC events: <60s
• Time until specifications are met: <1h

Recommended sampling interval

• VOC Index: 1s
• SRAW: 0.5s – 10s (Typ. 1s)