mjholmes / nodered-preservationeval

A node-red function to mimic the calculations done by the Dew Point Calculator

nodered-preservationeval

A node-red function to mimic the calculations done by the Dew Point Calculator.

Details

The preservation evaluation code was taken from the Dew point calulator created by the Image Permanence Institute. For details of the calculations see:

• http://www.dpcalc.org/howtouse_step2.php
• http://www.dpcalc.org/dp.js

Usage

Copy the contents of the flow file into the clipboard then import into node-red. Feed in temperauture and relative humidity values (as msg.payloads with topics set to temperature and humidity) into the join block. Once both are recevied the calculated values will be sent the appropriate outputs.

• Temperature is in degrees Celsius
• Humidity is relative humidity in percent