EcoRenovator  

Go Back   EcoRenovator > Search Forums
Advanced Search
 


Blog Register 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


Showing results 1 to 9 of 9
Search took 0.00 seconds.
Search: Posts Made By: theoldwizard1
Forum: Appliances & Gadgets 12-27-17, 10:52 PM
Replies: 29
Views: 5,531
Posted By theoldwizard1
Sorry for being late to the party ! If...

Sorry for being late to the party !



If you are really going to buy a new computer system, then this is the best suggestion !

The typical desktop and laptop unit have just hit the market. ...
Forum: Geothermal & Heat Pumps 11-19-14, 07:53 PM
Replies: 331
Views: 81,034
Posted By theoldwizard1
Yep ! Their only issue is "accuracy" at the...

Yep ! Their only issue is "accuracy" at the extremes of their range.

Below is a "typical" thermistor "transfer function".
...
Forum: Geothermal & Heat Pumps 11-19-14, 07:37 PM
Replies: 331
Views: 81,034
Posted By theoldwizard1
Arduino Une and Mega chip (ATmega328) does not...

Arduino Une and Mega chip (ATmega328) does not have a "native" floating point processor. Floating point is done via compiler libraries, which can be very slow.

IMHO, float should be avoided at...
Forum: Geothermal & Heat Pumps 11-17-14, 10:53 PM
Replies: 331
Views: 81,034
Posted By theoldwizard1
SIDEBAR on thermistors, wiring and A-to-D inputs ...

SIDEBAR on thermistors, wiring and A-to-D inputs

A thermistor is a devices whose resistance changes with temperature. The problem with them is that they loose "accuracy" at the ends of their...
Forum: Geothermal & Heat Pumps 11-17-14, 10:24 PM
Replies: 331
Views: 81,034
Posted By theoldwizard1
Highly unlikely ! In order to "find" an...

Highly unlikely !

In order to "find" an input/output "device" means that device must have some intelligence to answer the question "Who/what are you ?" with "I am a ...". Temperature sensor are...
Forum: Geothermal & Heat Pumps 11-17-14, 07:08 AM
Replies: 37
Views: 11,124
Posted By theoldwizard1
From Wikipedia I actually worked...

From Wikipedia




I actually worked alongside some guys trying to develop a Wankel engine to run the A/C compressor in the late 1980s. The engine would run on natural gas. It was aimed at...
Forum: Conservation 11-12-14, 02:27 PM
Replies: 90
Views: 19,349
Posted By theoldwizard1
A fully charged 12V lead acid battery is NOT 12V....

A fully charged 12V lead acid battery is NOT 12V. It could easily be between 11V and 13V.

Also a lead acid battery does not start to "accept" a charge until at least 13.2V and some chargers (not...
Forum: Solar Power 10-30-14, 09:15 PM
Replies: 3
Views: 1,633
Posted By theoldwizard1
Exactly what I expected. Any "48V" rated GTI...

Exactly what I expected. Any "48V" rated GTI inverter will handle what the charge controller can put out which would like not exceed 58V,
Forum: Geothermal & Heat Pumps 10-28-14, 10:41 AM
Replies: 331
Views: 81,034
Posted By theoldwizard1
Write a "generic" delay called function. Compile...

Write a "generic" delay called function. Compile it as a separate file with the optimizer turned off (-O0 on gcc, IIRC). Link it in.

When messing with ISR, make sure you understand any...
Showing results 1 to 9 of 9

 
Forum Jump

All times are GMT -5. The time now is 03:53 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design