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How A Photo-acoustic CO2 Sensor Works - Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm)
This project creates a portable CO₂ detection card using the SCD41 infrared photo-acoustic sensor, replacing bulky NDIR systems with MEMS microphones to shrink optical chambers for compact design. It delivers ±(40 ppm + 5% MV) accuracy in 400-5000 ppm range, enabling lightweight monitoring while requiring minimal environmental interference (vibrations, heat).
Part List
| Abbildung | Hersteller-Teilenummer | Beschreibung | Verfügbare Menge | Preis | Details anzeigen | |
|---|---|---|---|---|---|---|
 | SEN0536 | GRAVITY: I2C SCD41 INFRARED CO2 | 24 - Sofort | $47.12 | Details anzeigen | |
 |  | DFR0868 | BEETLE ESP32-C3 VERSION 2 | 66 - Sofort | $6.32 | Details anzeigen |
 | DFR0995 | 1.47 172320 IPS LCD DISPLAY MODU | 0 - Sofort | $7.92 | Details anzeigen | |
 | FIT0750 | LED MOD RGB LINEAR STRIP | 2 - Sofort | $18.90 | Details anzeigen |
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