Avoiding the need to reinvent the wheel.......

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Hey all,

   I am looking for a 'gizmo' that can monitor temperature, a fan speed, possibly control the fan with PWM, and monitor a digital input.  Then output this information via RS232, and accept commands via RS232 to override the fan control if at all possible.

 

I know I could whip something up via an UNO, but I don't need the USB, and if there is already something out there that would be great.

 

The 'brains' need to be in a case not much bigger than a deck of cards.

 

Any help I would appreciate..

 

Off to Google I go

 

East Side Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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Dunno if this covers it all (no RS-232, no fan speed control, &c) but for six bucks:

 

https://www.allelectronics.com/i...

 

Have fun!   S.

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Thanks, but thats not gonna make it.  Amazon had something that could monitor a temperature and give an alarm as well as monitor/control three fans but missed the criteria as well.

 

Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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Jim, I have made a print using 2x LM35 sensors that can control 2 PWM controlled PC fans with tacho.

It is based on a Mega 168 and has a uart connected to an FTDI chip for the serial coms part.

I also have a HD44780 LCD for UI attached.

 

You would be needing to do a bit of re-coding, but that should not be a big deal as you know what you want.

 

If interested I could send you some photos, but this is not something that is commercially available( as I think you are looking for)

 

 

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When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

Last Edited: Tue. Dec 3, 2019 - 09:04 AM