minus-squareWilliamAndre@alien.topBtoHome Automation@selfhosted.forum•My smart home busted my niece.linkfedilinkEnglisharrow-up1·1 year agoMy university did some research on non invasive attendance counting by using CO2 sensors. They were able to tell relatively precisely how many people were in a room by using only those. linkfedilink
My university did some research on non invasive attendance counting by using CO2 sensors. They were able to tell relatively precisely how many people were in a room by using only those.