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Forum Index : Microcontroller and PC projects : Humidity Calculation
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palcal Guru  Joined: 12/10/2011 Location: AustraliaPosts: 2008 |
Does any one have a formula for Humidity calculaton from wet and dry bulb temperatures. My outdoor sensor doesn't last long, the humidity here varies from over 80% early morning dropping to 65% to 70% during the day. At the moment it is 31 Deg. C and78% humidity, very uncomfortable for some but I'm used to it. I want to use a wet and dry bulb which should last indefinately. I'm thinking of topping up the wet bulb tank with a feed from my garden watering system I tried a couple of formulas I found online but they weren't very accurate when compared to a psychrometric chart. Edited 2025-11-28 14:16 by palcal "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6365 |
Try here https://www.thebackshed.com/forum/ViewTopic.php?TID=15917&PID=203964#203964#203964 Good luck finding the BOM website that I reference! Jim Edit: have you tried the HDC3022? https://www.thebackshed.com/forum/ViewTopic.php?TID=17688&PID=234524#234524#234468 You should be able to dry it out once a week or whatever. Edited 2025-11-28 17:03 by TassyJim VK7JH MMedit |
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