Closed kapyaar closed 2 years ago
Turns out the VDDH line needs to be powered. A continuity check was beeping between VDD and VDDH but an ohm test showed 8ohms, so definitely not a short. We ran power to both, and now it is working.
Thanks for coming back to report the fix!
Hi,
I bought both the sensor module by itself (Digikey# 1649-SCD41-D-R2CT-ND), as well as the dev kit for scd41 (digikey# 1649-SEK-SCD41-SENSOR-ND) from digikey. Running the basicReadings example, All works OK with the dev kit. Sample Serial output shows
CO2(ppm):751.00 Temperature(C):20.5 Humidity(%RH):41.7
but with the sensor module (Digikey# 1649-SCD41-D-R2CT-ND), CO2 reading is coming out as zero.
CO2(ppm):0 Temperature(C):21.1 Humidity(%RH):40.8
I have two different modules, This is happening with both modules. Any Idea why?