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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).

4/21/2025 4:54:25 PM

Part List

KuvaManufacturer Part NumberKuvausSaatavana oleva määrä HintaNäytä tiedot
GRAVITY: I2C SCD41 INFRARED CO2SEN0536GRAVITY: I2C SCD41 INFRARED CO219 - Immediate$50.49Näytä tiedot
BEETLE ESP32-C3 VERSION 2DFR0868BEETLE ESP32-C3 VERSION 282 - Immediate$6.77Näytä tiedot
1.47 172320 IPS LCD DISPLAY MODUDFR09951.47 172320 IPS LCD DISPLAY MODU2 - Immediate$8.49Näytä tiedot
LED MOD RGB LINEAR STRIPFIT0750LED MOD RGB LINEAR STRIP2 - Immediate$20.25Näytä tiedot

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