Home | Community | Message Board

World Seed Supply
This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

PhytoExtractum Shop: Maeng Da Thai Kratom Leaf Powder

Jump to first unread post Pages: 1
OfflineBlazedForever
SerpentLord
Male


Folding@home Statistics
Registered: 12/17/05
Posts: 43
Last seen: 14 years, 10 months
electricians! Humidity switch circuit?
    #7687636 - 11/27/07 06:53 PM (16 years, 4 months ago)

Hey all , I want to put together a simple humidity switch circuit. I'm good with basic electronics and can put together simple circuits , but thats about as deep into it as I get. Just wondering if there are any electrically inclined personnel out there willing to show me the structure of a circuit such as I ask. I have oodles of parts lying around including a few RH sensors and what not , so I think I have what it takes ... well besides the schematic. ha ha well hope someone can help.

Thanks in advance.

Extras: Filter Print Post Top
Offlinecosmoline
expertcontaminationgrower
 User Gallery


Registered: 08/11/07
Posts: 200
Last seen: 5 years, 2 months
Re: electricians! Humidity switch circuit? [Re: BlazedForever]
    #7697211 - 11/29/07 11:32 PM (16 years, 3 months ago)

What kind of sensors you got? Depending on how much you know about microcontroller programming I would go that route. I'v been meaning to make a temperaure/RH switch. This could be done very cheaply and reproduced easily.

Check it out:
http://www.arduino.cc/


--------------------
Buy the ticket, take the ride.

Extras: Filter Print Post Top
Offlinesome1whoisntme
Stranger


Registered: 09/21/05
Posts: 882
Last seen: 9 years, 1 month
Re: electricians! Humidity switch circuit? [Re: BlazedForever]
    #7697284 - 11/29/07 11:59 PM (16 years, 3 months ago)

Post the part numbers of the RH sensors you have and I can come up with something simple but it'll just be on/off above/below a certain input level, nothing fancy.

Extras: Filter Print Post Top
OfflineBlazedForever
SerpentLord
Male


Folding@home Statistics
Registered: 12/17/05
Posts: 43
Last seen: 14 years, 10 months
Re: electricians! Humidity switch circuit? [Re: some1whoisntme]
    #7701361 - 11/30/07 11:34 PM (16 years, 3 months ago)

Hmm well ok i have a few sensors, all of which look like the white ones in the photo. Only one sensor i can see has a number it says 73 and looks like the middle one in the picture.




*edit

to tell you the truth i think it looks more like the ones on this page

Edited by BlazedForever (11/30/07 11:38 PM)

Extras: Filter Print Post Top
Offlinecosmoline
expertcontaminationgrower
 User Gallery


Registered: 08/11/07
Posts: 200
Last seen: 5 years, 2 months
Re: electricians! Humidity switch circuit? [Re: BlazedForever]
    #7704459 - 12/01/07 09:26 PM (16 years, 3 months ago)

That would be really simple to interface to a microcontroller. All you would need is a resistor, microcontroler and a little code. How much are these little units? PM me if you want help designing a RH/temp trigger system, I was planning on making one myself.


--------------------
Buy the ticket, take the ride.

Extras: Filter Print Post Top
OfflineD4NK
Omni-Potent
Male User Gallery


Folding@home Statistics
Registered: 04/05/05
Posts: 1,707
Loc: A Different Parallel Real...
Last seen: 11 years, 5 months
Re: electricians! Humidity switch circuit? [Re: cosmoline]
    #7704705 - 12/01/07 11:01 PM (16 years, 3 months ago)

A micro is a bit overkill isn't it?  Why not just hook up a comparator w/ a changeable POT or something instead?  Seems like it would be easier for someone to just hook up and go :shrug:


--------------------
  Moderation is key 

  "There is no god higher than truth." 


Extras: Filter Print Post Top
Offlinecosmoline
expertcontaminationgrower
 User Gallery


Registered: 08/11/07
Posts: 200
Last seen: 5 years, 2 months
Re: electricians! Humidity switch circuit? [Re: D4NK]
    #7704987 - 12/02/07 12:58 AM (16 years, 3 months ago)

Thats true but the thing about a microcontroller is that you can hook it up to a computer to log/output data very easily. Plus I have a lot more experiance with them then the simple circuits you are talking about, weird huh.


--------------------
Buy the ticket, take the ride.

Extras: Filter Print Post Top
OfflineBlazedForever
SerpentLord
Male


Folding@home Statistics
Registered: 12/17/05
Posts: 43
Last seen: 14 years, 10 months
Re: electricians! Humidity switch circuit? [Re: cosmoline]
    #7707853 - 12/02/07 06:38 PM (16 years, 3 months ago)

well it sounds cool but i have no knowledge in micro controller use. If you can give me a how to or are able to lead me through the implementation of a micro controller, that would be great. I have to admit though it sounds like a bit much trouble , and i imagine that i would have to buy the hardware interface which costs who knows how much. I have lots of little scavenged parts and i think it would probably be quicker and easier for me to just put together a simple circuit.

Extras: Filter Print Post Top
OfflineD4NK
Omni-Potent
Male User Gallery


Folding@home Statistics
Registered: 04/05/05
Posts: 1,707
Loc: A Different Parallel Real...
Last seen: 11 years, 5 months
Re: electricians! Humidity switch circuit? [Re: BlazedForever]
    #7708277 - 12/02/07 08:18 PM (16 years, 3 months ago)

From looking at the datasheet you linked, I got this "not so user friendly" schematic to convert humidity to a corresponding voltage.


I would suggest either ordering a sensor so you know what you have, or finding out what the specific part number of the sensor you have is. I'm not sure what good an RH sensor is if you don't know the exact part name.

Also, what exactly are you trying to do? Switch something on when it hits a certain RH?


--------------------
  Moderation is key 

  "There is no god higher than truth." 


Extras: Filter Print Post Top
Offlinecosmoline
expertcontaminationgrower
 User Gallery


Registered: 08/11/07
Posts: 200
Last seen: 5 years, 2 months
Re: electricians! Humidity switch circuit? [Re: D4NK]
    #7708540 - 12/02/07 09:23 PM (16 years, 3 months ago)

I'll get some temperature/RH sensors and put something together then write up a howto for everyone. Anyone thats had experience with these sensors please chime in and recommend some. Thanks.


--------------------
Buy the ticket, take the ride.

Extras: Filter Print Post Top
Invisibleplaywithguns
Sporophore

Registered: 10/20/04
Posts: 223
Re: electricians! Humidity switch circuit? [Re: cosmoline]
    #7719185 - 12/05/07 11:00 AM (16 years, 3 months ago)



--------------------
My Garden

Edited by playwithguns (12/05/07 11:03 AM)

Extras: Filter Print Post Top
Invisiblemachination
Stranger
Registered: 09/17/07
Posts: 705
Loc: Hringhorni
Re: electricians! Humidity switch circuit? [Re: BlazedForever]
    #7719192 - 12/05/07 11:03 AM (16 years, 3 months ago)

how do we ask the brains behind haarp to send heat and rain to our geo.. hrmm

Extras: Filter Print Post Top
Jump to top Pages: 1

PhytoExtractum Shop: Maeng Da Thai Kratom Leaf Powder


Similar ThreadsPosterViewsRepliesLast post
* any electricians?
( 1 2 all )
afoaf 2,590 21 07/31/05 11:53 AM
by afoaf
* any electricians around here??? farva86 1,001 11 03/31/07 10:43 PM
by farva86
* Is anybody here an electrician or do you know an electrician? RandalFlagg 931 9 09/19/05 11:48 AM
by OneMoreRobot3021
* Oxygen sensor
( 1 2 3 all )
freddurgan 3,973 47 06/29/05 04:07 PM
by vinsue
* electrician apprenitcship ninjacory 398 0 02/06/08 04:55 PM
by ninjacory
* Subwoofer Toggle Switch... FreshCaps 826 4 12/28/04 12:22 PM
by TYL3R
* Is It Humid? MyPhilosophy 506 3 12/27/06 08:16 PM
by MyPhilosophy
* My god, how I loathe "bait and switch' advertising...
( 1 2 3 all )
RonoS 2,118 55 08/31/06 05:10 PM
by TODAY

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Entire Staff
2,698 topic views. 4 members, 31 guests and 76 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.025 seconds spending 0.008 seconds on 14 queries.