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Old 06-08-14, 01:35 PM   #102
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A/C no point in double, Arduino treats it a single precision float.

Occupancy controlled ventilation (DCV) motion sensors & CO2

CPD - October 2012: Demand-controlled ventilation to reduce fan energy use | Chartered Institution of Building Services Engineers - CIBSE Journal

However, unless it goes above the recommended 1,000 ppm (compared with outdoor CO2 levels of about 400ppm) it will have a negligible affect on the occupants

Good website, lots of info on many topics

Last edited by buffalobillpatrick; 06-08-14 at 02:50 PM..
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