How would you regulate temperature in a chamber against temperature fluctuations outside?

How would you regulate temperature in a chamber against temperature fluctuations outside?

A temperature of T_c needs to be maintained in a chamber (enclosed volume of space). Outside temperatures fluctuate periodically between T_min and T_max where T_min < T_c < T_max.

Anything that can achieve this is welcome. Can you guys brainstorm any solutions?

Submitted May 31, 2016 at 05:50PM by sandowian
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How would you regulate temperature in a chamber against temperature fluctuations outside?

I taught Siri to make me coffee. I started automating my home on a budget. For about 150$, Siri can now control my lights, coffee machine, and start a party on command!

I taught Siri to make me coffee. I started automating my home on a budget. For about 150$, Siri can now control my lights, coffee machine, and start a party on command!

Hi /r/engineering!

I thought maybe some of you might like this, I recently took up an interest in home automation and was looking for affordable ways to turn your home into a smart home. Here is the video:

https://www.youtube.com/watch?v=mwCukli7p0k (coffee at 0:50)

The light bulbs I bought are less than half the price of Philipps Hue, but came without HomeKit functionality. I didn't like their App, and really wanted Siri control as well. So I used a Raspberry Pi and a software called openHAB, which can create bindings to hundreds of smart home devices. So now Siri sends commands to the Pi, which in turn controls my lights, music (for scenes like Emergency Party or Instant Romance) as well as a smart socket to which I have my coffee machine connected.

It was a really fun project and I learned a lot on the way. If you have any questions feel free to ask! 🙂

Submitted May 31, 2016 at 03:17PM by tommit
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I taught Siri to make me coffee. I started automating my home on a budget. For about 150$, Siri can now control my lights, coffee machine, and start a party on command!

[Architectural Electrical Engineering] Benefits of grounding rod inspection wells at site light poles?

[Architectural Electrical Engineering] Benefits of grounding rod inspection wells at site light poles?

Wondering what the benefits of having a test inspection well at each buried ground rod is? Just for inspection later?

Specifically, is there any benefit for having test wells at each grounded light pole, or is the benefit maxed at having a test well just at the service?

Submitted May 31, 2016 at 11:34AM by Kirjath
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[Architectural Electrical Engineering] Benefits of grounding rod inspection wells at site light poles?