[time-nuts] Temp/Humidity control systems?

[Wes]

On 10/30/2016 10:18 PM, Bill Hawkins wrote:
> Think of the fun you'll have determining the heat flow model constants
> for the system. In particular, there's no air flow sensor because they
> are expensive. You'll need to determine the relation between fan speed
> and air flow.
You can buy an automotive mass airflow sensor on eBay for a few dollars.  The 
flow rates may or may not be appropriate, but they're out there.