SEN-31669 · SparkFun
Accurately measure indoor formaldehyde (CH 2 O/HCHO) levels with this low-power, Qwiic-enabled SFA40 sensor from Sensirion. (SparkFun SEN-31669)
| Part number | SEN-31669 |
|---|---|
| Manufacturer | SparkFun |
| Category | Sensors › Gas & Air Quality |
| Pins | 4 |
SparkFun Formaldehyde Sensor - SFA40 (Qwiic) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | GND | ground | |
| 2 | 3V3 | power | |
| 3 | SDA | bidirectional | |
| 4 | SCL | input |
Schematic symbol and footprint
Schematic symbol
Footprint: JST-SH 4-pin SMD right-angle (SM04B-SRSS-TB) - Qwiic / STEMMA QT — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
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