Automated Irrigation / Sprinkler

schuits said:
Ye we have one in our garden.
The solenoids are very low voltage...like 24v or something.
Using 240v would not be a good idea.
Click to expand...

Please correct me if I am wrong but the solenoid is still powered from your normal power, using some sort of power supply converting it from 220-240V AC to 24V (DC /AC) or whatever the solenoid uses. You should simple be able to add the relay to the power supply between the power supply and it's power source?
 
Just got this when I asked a landscaper :

"When we install water pumps we always connect them to a 22oV outlet *ie., normal household voltage 0 single phase.

*Some pumps have built in transformers which step down the current to 12V or 24V – but they normally come with built in transformers – so we still plug them into a 22V socket"

So it appears I could use a relay
 
Dolby said:
If there's enough space, you can behind a switch. Certainly that's the most convenient as you *may* need access in the rare event it unsyncs from the app.

If not, you can install in the roof just before the base of the light.

I got this unit as well http://sonoff.itead.cc/en/products/residential/slampher-rf which may or may not work. The negatives are :

* Only E27 fitting
* The extra length means it could peak out of a lamp
Click to expand...

Easiest to buy the T1 and replace existing light switches I suppose. What is the product code for the relay that would have to dit behind the switch as per my earlier post? The link has multiple products and I need rob be sure I'm looking at correct pic :-)
 
Here are the relay models we're bringing in.

They Sonoff G1 was out of stuck from them, so we left off

They're all pretty much the same size, so they'll all fit - or not fit :)

Untitled.jpg
 
So ... Relooking, but I'm thinking of a real irrigation computer that can run an app like Rainbird or Gardena.

Any other brands?
 
As already stated, just about all sprinkler control systems make use of 24V. And BTW, It is really very stoopid for anyone to install the water control valves in underground chambers anyway.

And BTW, you should check what the SANS electrical specs and regulations have to say about sprinkler control systems.
 
Dolby said:
So ... Relooking, but I'm thinking of a real irrigation computer that can run an app like Rainbird or Gardena.

Any other brands?
Click to expand...
I'm gonna mention opensprinkler again.
I think it will be the most open automated system you can install. Can add lights, pool pump etc as well. Although these are no taken care of by sonoff.
 
rodga said:
I'm gonna mention opensprinkler again.
I think it will be the most open automated system you can install. Can add lights, pool pump etc as well. Although these are no taken care of by sonoff.
Click to expand...

I'll check them again ... phakt is also pushing me. I just preferred something off the shelf
 
It is pretty much off the shelf :p Same amount of effort as configuring a Hunter system
 
Reviving this thread...
Very keen on using a Sonoff 4CH to control an irrigation / sprinkler system. It's a fraction of the price of an opensprinkler controller.
@Dolby is correct that most sprinkler solenoid valves are low voltage. I'm wondering if it's possible to use a 220v solenoid valve from a washing machine instead of a sprinkler branded one.
I guess another alternative is to step down the voltage, but I probably need 3 or 4 zones to my sprinkler system, and that's 3 or 4 step down circuits which means lots of points of failure.
 
eehellfire said:
Reviving this thread...
Very keen on using a Sonoff 4CH to control an irrigation / sprinkler system. It's a fraction of the price of an opensprinkler controller.
@Dolby is correct that most sprinkler solenoid valves are low voltage. I'm wondering if it's possible to use a 220v solenoid valve from a washing machine instead of a sprinkler branded one.
I guess another alternative is to step down the voltage, but I probably need 3 or 4 zones to my sprinkler system, and that's 3 or 4 step down circuits which means lots of points of failure.
Click to expand...
Just cross referencing to my setup in this thread:

Sonoff for irrigation?

What solenoids are you using? How do you distribute water to the solenoids? I started with Hunter, since all my sprinklers are also Hunter, but now also have Orbit and Rain ones installed. They all work exactly the same, haven't had any issues with any of them, so you might as well go for the...
mybroadband.co.za mybroadband.co.za
 
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