[TriEmbed] Question: On/Off Sensor for Hot Water Heater

[Dwight Morgan]

Thanks Shane!

 

This is interesting. Right much of the article was a bit over my head right now but I can see this may be an option for me. I need to do a little more research on it – look at specs closer. I appreciate the info.

 

Dwight 

 

From: Shane Trent [mailto:shanedtrent at gmail.com] 
Sent: Wednesday, January 14, 2015 2:43 PM
To: Dwight Morgan
Cc: Triangle Embedded Computing Discussion
Subject: Re: [TriEmbed] Question: On/Off Sensor for Hot Water Heater

 

Dwight,

 

Here is pre-built board that might do what you want. It's a good read about using Hall Effect sensors for monitoring AC current.

 

http://moderndevice.com/new-products/current-sensor/

 

Shane

 

On Wed, Jan 14, 2015 at 2:15 PM, Dwight Morgan <dwight.w.morgan at gmail.com> wrote:

Hello All:

 

I want to monitor when my hot water heater is on and off using my Arduino UNO. I have done research on sensors and it looks like the best choice is the ACS712 Hall Effect Current Sensor. 

 

My water heater has two 4500 Watt elements at 240 Volts. So the calculated current draw is 18.75 amps since only one element is on at a time.

My question(s): First, is the Hall Effect sensor a good choice and second, if so, will the 20 amp rated one work okay? 

 

Also, if this is viable, I think I will try to use Cat5 cable to pick up the signal which will be about 100 feet away. I’m not sure exactly about the connectors yet.

 

All advice is appreciated. 

 

Thanks!

 

Dwight

 

 


_______________________________________________
Triangle, NC Embedded Computing mailing list
TriEmbed at triembed.org
http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
TriEmbed web site: http://TriEmbed.org

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.triembed.org/pipermail/triembed_triembed.org/attachments/20150114/05d34c19/attachment.htm>