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Search: Posts Made By: AC_Hacker
Forum: Conservation 06-09-14, 02:56 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Thanks BBP

Thanks BBP, I just edited in your useful link to the initial post of this thread.

Best,

-AC_Hacker
Forum: Conservation 06-08-14, 05:32 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Which is the whole point of my CO2 controller for...

Which is the whole point of my CO2 controller for an HRV.

No HRV is 100% efficient when it runs... there is a constant heat loss during it's operation, even with the best of them.

A CO2...
Forum: Conservation 03-25-14, 12:15 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Project Improvement...

Although the fan-control part of the program worked just fine, I had a persistent problem with the display of the CO2 values, in that values below 999 ppm were all showing properly, but once the...
Forum: Conservation 02-21-14, 05:15 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Thanks hygy, but the CO2 controller is actually...

Thanks hygy, but the CO2 controller is actually part of a "smart" HRV project that is in the works.

Be safe camping,

-AC
Forum: Conservation 02-21-14, 11:31 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
In my thread about developing a CO2 controlled...

In my thread about developing a CO2 controlled Heat Recovery Ventilator, I may not have mentioned so much about my experiences of actually having a CO2 monitor in my house. I learned that far more...
Forum: Conservation 02-20-14, 12:08 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Hello hygy, I got mine from a company in the...

Hello hygy,

I got mine from a company in the US that buys electronics inventories from failed companies that have failed, then they sell them.

That company has exhaused their supply. The sensor...
Forum: Conservation 04-09-13, 02:23 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
More Progress...

I have successfully integrated the SHT15 temp & humidity sensor into my controller.

One issue with the SHT1x family of sensors is that they use a protocol and library that is very similar to the...
Forum: Conservation 04-03-13, 03:16 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
All good advice. But the behavior is really...

All good advice.

But the behavior is really a bit different than the occasional spike. What happens is that the CO2 sensor suddenly jumps up an order of magnitude (I've watched it happen), and...
Forum: Conservation 04-03-13, 02:29 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Using the SHT-15 Temperature and Humidity Sensor

The Sensorion SHT15 breakout board arrived from Sparkfun.

http://ecorenovator.org/forum/attachment.php?attachmentid=3124&stc=1&d=1365012737

I already had a SHT10 laying about, but honestly, it...
Forum: Conservation 04-03-13, 01:01 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Forum: Conservation 04-02-13, 06:07 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Welcome back. Were you warming yourself on some...

Welcome back. Were you warming yourself on some sunny shore?

The project is going pretty good.

The CO2 sensor has occasionally exhibited some anomalous behavior, like cruising along at 700 ppm...
Forum: Conservation 03-28-13, 03:54 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Sensor For Everything...

I just came across this very useful list of sensors (http://playground.arduino.cc/Main/MQGasSensors):

List of sensors
MQ-2

Sensitive for Methane, Butane, LPG, smoke.
This sensor is sensitive...
Forum: Conservation 03-28-13, 12:32 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Oh, so you kept your house perpetually...

Oh, so you kept your house perpetually pressurized at 50 pascals? Yeah, that would dump a lot of CO2.



I'm pretty sure that before I started my insulation & infiltration Jihad...
Forum: Conservation 03-28-13, 10:55 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
CO2 Jihad & Its Consequences...

Yeah, this CO2 Jihad I'm on is becoming a real education.

I really had not anticipated the effects of CO2 concentration due to gas appliances. I've had all the classes, passed all the tests, etc....
Forum: Conservation 03-28-13, 09:40 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Nat Gas. -AC

Nat Gas.

-AC
Forum: Conservation 03-27-13, 11:26 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Ventless Heater...

It's always really chilly in my cellar in the wintertime, too cold to go down and do any interesting work on projects.

So a couple of days ago I bought a new Ventless Heater.
...
Forum: Conservation 03-23-13, 04:16 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
'CO2 Bubbles' in Still Air...

It is interesting how instrumentation can give us an awareness of previously unseen things.

My desk is set at a wall, facing out through a window. I generally do my Internet work there as well as...
Forum: Conservation 03-22-13, 02:00 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
New LCD Display (16x2)

I looked through my Geek Trove and found another LCD display that was soldered into an assemble. So, I spent a few careful hours extracting the display without wrecking it (listening to calming...
Forum: Conservation 03-19-13, 09:03 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
I'm very interested in this information! If...

I'm very interested in this information!

If you click on my AC_Hacker hyperlink that is on the upper-left of this post, it will take you to a page that will allow you to send an email to me. I...
Forum: Conservation 03-10-13, 06:37 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Replaced DHT11 sensor... Problem solved.

The DHT11 sensor I was using did not jive with a couple of other sensors I have for comparison. I can forgive a difference of a degree, or maybe even two, but 5 degrees is just too much.

When I...
Forum: Conservation 03-09-13, 11:41 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Combining CO2, Humidity & Temperature...

I spent a couple of hours messing around with the sample programs for CO2, from the Telaire 6004 and temp and humidity data from the DHT11, in an effort to combine three programs into one.

I was...
Forum: Conservation 03-08-13, 09:27 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Wow, sounds like another fabulous thread! ...

Wow, sounds like another fabulous thread!

Where are you going to find the time?

-AC
Forum: Conservation 03-08-13, 01:29 PM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Progress with LCD Display...

Before the temperature/humidity sensors came in, I was trying to get the LCD display running on the Arduino.

There's are good tutorials everywhere with libraries & sketches, and this morning I...
Forum: Conservation 03-08-13, 09:19 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
I didn't expect to like the 1-wire temperature...

I didn't expect to like the 1-wire temperature sensors, but now I do.

The fact that they are digital is a bonus, since analog sensors suffer inaccuracies form temperature changes affecting the...
Forum: Conservation 03-08-13, 01:50 AM
Replies: 105
Views: 57,559
Posted By AC_Hacker
Yeah, the one I have is for a more limited range....

Yeah, the one I have is for a more limited range. Since I want to use in inside the house, the range was not so important.

I think yours uses a different library, but everything else is pretty...
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