Ebay temp controller wiring?

[Mountainsax]

Has anyone used one of these temp controllers and can you tell me how to wire it for heat and cooling control? I want to use it for a ferm chamber I plan to build but it doesn't have the 4th set of connections like the STC1000.
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[day_trippr]

Obviously that's not an STC-1000.

Search the forum for MH1210. I've posted at least a couple of wiring diagrams for that controller...

Cheers!

 

[doug293cz]

Since it only has one relay output, it cannot control both cooling and heating at the same time.

Brew on

 

[Mountainsax]

Thanks day_tripper, I found one! Just realized that it will only do one or the other, not what I thought I got.

I'm going to use it for our trash can fermentation chambers to more accurately run the aquarium heaters. Waste not, want not!

 

[Mountainsax]

I got it wired and running! It's not much, and still pretty ghetto but it's one small step forward!
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Thanks again for the diagram day_tripper!
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[day_trippr]

Glad to help!

Cheers!

 

[joe_four_strings]

I just built one of these. I used that same diagram and I added an led so it looks cool.

 

[helibrewer]

Any idea if this uses the same chipset as the STC-1000? I'm wondering about the "flashability", i.e., STC-1000+

 

[day_trippr]

Almost certainly not, and in any case, it's only outfitted with a single relay, which renders nearly all of the added functionality expressed in the + firmware moot...

Cheers!

 

[augiedoggy]

There are dual relay versions of this same controller for $18 shipped on ebay.. and bare bones 12v relay versions for like $8-12 shipped now. I use both a single realy and dual control mode as well as a regular stc 1000 and I find the knock offs much easier to adjust temps and such.. they do have different menus and operation structure.
I haven't tried to flash the stc 1000+ firmware to stc yet since Im not really sure how to go about it...I know I'll likely need some sort of homemade jtag device to do it.