Howto: Use a Linksys Router as Wireless Reef Controller - WRRC

[lakee911]

Ah, yes I did see that circuit. I even have the sensors, just didn't realize that was you that posted it. I'm gonna build one at some point.

Thanks

 

[lakee911]

duplicate sorry

 

[djmx2002]

Where can i find a firmware that will work with WRT54G V6 ? everything i try to use tell me that it can't install it and that the upgrade failed

 

[lakee911]

I think you answered your own question there, DJ.

everything i try to use tell me that it can't install it

 

[BeanAnimal]

I think I like those pressure sensors... I only ordered 3 of them, but now think I may want more. I have visions of using them to dtermine the output head on the return and CL pumps to monitor their flow status (not so much GPM, but that they are working)

 

[pista01]

Bean, where did you get the sensors?

 

[lakee911]

You'd like to use them as a proof of flow switch? Remember they can only do I think 10in of water column, even less with saltwater. Your pump could destroy them if too much pressure.

Various companies make flow switches that are like the following: http://www.gemssensors.com/content.aspx?id=1178

You trim them and insert them into a tee and they swing when you have flow and make or break a dry contact. They're pretty good if sized properly. I understand that the brass is a bad idea, but maybe a plastic one is made?

You can get those DIY low range pressure transmitter on eBay.

 

[aka_BigRed]

Though I'd think you'd have to find them for a chemical resistant application (PTFE, etc) since a standard copper/steel is very bad with salt water.

 

[lakee911]

Though I'd think you'd have to find them for a chemical resistant application (PTFE, etc) since a standard copper/steel is very bad with salt water

That's what I said

I understand that the brass is a bad idea, but maybe a plastic one is made?

:lol:

We don't have any idea what those press xmit'rs diaphragms are made of, do we?

 

[aka_BigRed]

Oops. I missed the last line

Maybe we are better off coming up with a way to monitor the power supplied to the pump instead of the actual pumping itself (IE assume if the AC circuit is closed then it's on)? Then there's no invasion into the water. The only thing is you'd only be able to tell if the pump is drawing power, and not necessarily pumping (it could be running dry)

 

[lakee911]

That's commonly done, BigRed. You can tell a lot about wattage drawn. Dead head, run dry, etc. Need a good cheap reliable watt meter though.

Jason

 

[pista01]

What about watching pump RPM? Some external pumps have a shaft driven fan. Shouldn't be too hard to determine the RPM.

 

[BeanAnimal]

<a href=showthread.php?s=&postid=9373927#post9373927 target=_blank>Originally posted</a> by lakee911
You'd like to use them as a proof of flow switch? Remember they can only do I think 10in of water column, even less with saltwater. Your pump could destroy them if too much pressure.

Various companies make flow switches that are like the following: http://www.gemssensors.com/content.aspx?id=1178

You trim them and insert them into a tee and they swing when you have flow and make or break a dry contact. They're pretty good if sized properly. I understand that the brass is a bad idea, but maybe a plastic one is made?

You can get those DIY low range pressure transmitter on eBay.

I have messed with a few DIY designs that use an LED transmitter set and a flag.

The pressure sensors come in a wide range of values. But yes, I want to use it as proof of flow.

 

[BeanAnimal]

<a href=showthread.php?s=&postid=9375191#post9375191 target=_blank>Originally posted</a> by lakee911
That's commonly done, BigRed. You can tell a lot about wattage drawn. Dead head, run dry, etc. Need a good cheap reliable watt meter though.

Jason

I have designed (not yet built) digital wattage sensing for each output of my controlelr (all 24) they are based on small current rtansformers, an OP-AMP for scalling and the analog inputs of a PIC for each channel....

I still wanted to use the sensors on the output for proof of flow. I will use a sensor in each output branch of hte OM for example. That way I can ensure that the OM is not stuck on a single port.

 

[lakee911]

Bang 'em out, Bean. If you could make a small handy dodad that would make it easy to monitor many of our small loads, the world would swim a path to your door

 

[aka_BigRed]

Or if you are interested in sharing the design, I could post it on the WRRC site.

 

[BeanAnimal]

now if I could just learn to type.

The design is not that complicated really. It is just a CT with an AP-AMP for positive scaling. The PIC will do the A/D and a rough RMS calculation. I am not getting too fancy and trying to do true RMS, I just want an idea of what is going on, not a billable usage rate.

 

[djmx2002]

ok i managed to install DD-WRT finally

now that has a telnet access.
what other programs do i need to install on it?

 

[djmx2002]

how to i upload files to the WRT54G?

 

[aka_BigRed]

I *FINALLY* got a chance to make another prototype of my 1-wire temp board, and it works!! I had several un-needed wires all grounded together, as well as connecting the NC pin to the ground. Something didn't like that, so after only taping the lines that I need (+5v, 5V-GND, OW-DATA) the sensor shows up in OWFS.

I'm hoping to etch another board this weekend and solder up the epoxy covered version to drop into my tank. Then I'm starting to get somewhere since I'll be able to monitor water temperature instead of just the air.