Fabien Royer
FabienRoyer
Breaking Bad? Me?
Co-Founder / Chief Hacker @ [nwazet
Bio: http://nwazet.com/us
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Using the Adafruit Arduino Logger Shield on a NetduinoC9 Netduino Shield Series - Using Arduino Shields with a Netduino - Part II
Introduction
In our previous article, we examined what an Arduino shield is, how to build a simple custom shield and discussed how to quickly identify shields that are good candidates for a Netduino adaptation versus shields that...
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What Is an Arduino Shield and Why Should My Netduino Care?C9 Netduino Shield Series - Using Arduino Shield with Netduino - Part I
Photo courtesy of John BoxallIntroduction
When the Arduino Duemilanove microcontroller appeared in 2005, it featured a set of female pin headers exposing most of the pins of the ATmega168 for easy hacking and for connecting...
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Saving energy with the .NET Micro FrameworkOur home is equipped with a relatively old gas heater, built in 1996. It still works great, has been serviced regularly since it was installed and there is no good reason to replace it yet. However, it isn’t as energy efficient as more recent models.
The other aspect of this gas water heater is that...
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Saving energy with the .NET Micro Framework
Mar 11, 2011 at 11:42 AM@Silvio: Hi Silvio. I am aware of this bacteria. When the water temperature is hot, it stays hot for long enough to kill any potential Legionellosis bacteria. Also, Legionellosis is more of a concern in cooling systems. This issue has been discussed a few times on the original post: http://fabienroyer.wordpress.com/2011/02/22/saving-energy-with-a-netduino/
Cheers,
-Fabien.
Saving energy with the .NET Micro Framework
Mar 10, 2011 at 2:30 PM@barrkel: Hi Barry. Thanks for sharing your thoughts.
Unfortunately for us, the gas water heater was installed in the garage by the builder when the house was built. In the winter months, it really gets cold there and the temperature differential between the hot water and the ambient temperature of the garage leads to waste. After installing this hack, I also wrapped the gas water heater in insulation to help reduce the loss. The perceived constraint of having to stick to a strict schedule is actually not that bad since the water still remains warm for quite some time after the heat is lowered.
@Jeff Birt: the servo can only physically go from 0 to 180 degrees: the way the mechanical coupling works with the valve, calibrated to be on the HOT setting at the full extent of the servo's arm, it is impossible to get into a dangerous situation where the water would become too hot. The water never gets stone cold as the temperature is only lowered to a low heat setting, so it never takes a huge amount of energy to heat it back up.
I plan on having a follow-up article on the actual savings in a few months: the proof will be in the pudding
Cheers,
-Fabien.