reef-pi :: An opensource reef tank controller based on Raspberry Pi.

[Jean-Pierre Renaud]

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[Diamond1]

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I like that idea. I'm planning something like it with an old 12v HP cooling fan. With the same kind of fin design.

 

[theatrus]

Such a deal I have for you, well maybe :)

I have a bunch of fans, these are not a normal computer fan but were used in a thin client, 5v .15A hydraulic bearing (really quiet), they seem to move some air and I was going to mount them on a board and possible use them for my summer time cooling for my nano tanks. I thought someone else may be interested in a few, just shoot me a PM and we can discuss further.
:)

This is what I was thinking of making something similar - https://www.bulkreefsupply.com/tunze-aquawind-twin-aquarium-fan-7028-900.html

How loud do those get? Blowers are great at pressure but usually suck at acoustics for the same volume of air.

 

[Reefology1]

Hi, can someone please give me the command to update to 2.2? thanks

 

[Ryan115]

When the dashboard is open, it will constantly pull reef-pi server to get latest data. This should caused some cpu utilization but should not impact memory ...

Then I am confused. Running for ~ 2 days now with no excess memory usage. The only thing that I have changed is not leaving the window open in my browser...

 

[Reefology1]

*pi zero

Download it
wget -c https://github.com/reef-pi/reef-pi/releases/download/2.1/reef-pi-2.1-pi0.deb
sudo dpkg -i reef-pi-2.1-pi0.deb

then install it
sudo dpkg -i reef-pi-2.1-pi0.deb

Thanks,

actually its a pi 3b+ but I think I downloaded the zero version initially. should I delete and reinstall? or reformat sd and start from scratch?

 

[Reefology1]

thanks everyone for all your help, have it all installed, tested and ready to go. have ordered a bunch of components and will start a build thread soon. wish me luck :)

 

[bishoptf]

How loud do those get? Blowers are great at pressure but usually suck at acoustics for the same volume of air.

Depends on how fast you push them, at stock voltage they are nearly silent, they don't push a ton of air but 2-3 of them should do fine for a nano tank. I have gobs of them from a long ago project, trying to clean things out and just hate tossing things that I think could be used for a good purpose.

 

[Ranjib]

@Ranjib
A nice feature request may be to be able to choose which feeds get sent to adafruit io. A free account gets 10 feeds, it would make sense to be able to choose which feeds the user wants to send

Yes.i don’t know when I’ll get time to work on this. But this is definitely gonna come

 

[Ranjib]

thanks everyone for all your help, have it all installed, tested and ready to go. have ordered a bunch of components and will start a build thread soon. wish me luck :)

Awesome :-) and best of luck

 

[daveCB]

I disabled Adafruit IO and my memory leak stoped. My memory is very stable on 2.2 with this disabled.

 

[dmolavi]

Anyone use these? https://www.amazon.com/gp/product/B018KFX5X0/ref=ox_sc_act_title_1?smid=AYI27JSX7SHMW&psc=1

Price per unit can't be beat, if they work. If folks haven't used these particular ones, which can you recommend, and how are you sealing them? I can't find clear PVC shrink tube anywhere...

 

[That Crusso Kid]

Anyone use these? https://www.amazon.com/gp/product/B018KFX5X0/ref=ox_sc_act_title_1?smid=AYI27JSX7SHMW&psc=1

Price per unit can't be beat, if they work. If folks haven't used these particular ones, which can you recommend, and how are you sealing them? I can't find clear PVC shrink tube anywhere...

@dmolavi - some people have uses those with some success. Most have had not-so-good results. Overall, there are various probes being used and @theatrus was running some tests on different methods for sealing. I am not sure if/what his findings were. Also, some are testing putting a thermistor in a test tube and sealing it.

Some folks have had very good results with this model.

https://www.sparkfun.com/products/11050

And I believe @Bigtrout has seen very good results with this one.

https://www.amazon.com/dp/B01MY8U394/ref=cm_sw_r_cp_apa_i_PZXtCbDPWAFFG

 

[dmolavi]

@dmolavi - some people have uses those with some success. Most have had not-so-good results. Overall, there are various probes being used and @theatrus

Some folks have had very good results with this model.

https://www.sparkfun.com/products/11050

And I believe @Bigtrout has seen very good results with this one.

https://www.amazon.com/dp/B01MY8U394/ref=cm_sw_r_cp_apa_i_PZXtCbDPWAFFG

Thanks, yeah I didn't see any followup from @theatrus on his tests.

The big question is the sealing of the probes. Ranco just used heat shrink on the one they sold to me for the temp controller I use, and it's been just fine, reliability-wise. They specifically call out PVC shrink tube on their site...I guess because it probably doesn't leech like the normal PO shrink tubing, and has thinner walls which makes for better thermal conductivity.

 

[dmolavi]

This is the same one that @Ranjib has been using successfully for a few years now and recommends. I realize one can pick up the other sensors on eBay for like $2 each. However, why create more work and worry about something when it's not necessary?

@Ranjib - is this reef safe out of the box, or does it need a coating or dip?

 

[Ranjib]

@Ranjib - is this reef safe out of the box, or does it need a coating or dip?

I am assuming so. It’s not explicitly stated.

 

[DirtDiggler2823]

@Ranjib - is this reef safe out of the box, or does it need a coating or dip?

You should strip off the shrink wrap, and add your own coating. Mine failed in less than a day when used fresh out of the box. Others have tried silicone, but those failed eventually as well. In my opinion, the juice isn't worth the squeeze to improve those. These have been good though

DROK 2pcs -55℃ to 125℃/-67℉ to... https://www.amazon.com/dp/B01MY8U394?ref=ppx_pop_mob_ap_share

 

[dmolavi]

I am assuming so. It’s not explicitly stated.

sorry.. thought the original would quote...these are what i was asking about:
https://www.sparkfun.com/products/11050

@DirtDiggler2823 - The sparkfun ones failed on you? How did you seal the DROK sensors?

 

[DirtDiggler2823]

sorry.. thought the original would quote...these are what i was asking about:
https://www.sparkfun.com/products/11050

@DirtDiggler2823 - The sparkfun ones failed on you? How did you seal the DROK sensors?

I didn't have to seal the DROK sensor. It's got an amazing silicon insulation, and it is double crimped. I'm also using a sparkfun probe that comes already fully sealed in plastic. I don't have the link for that one handy. Both are working well right now, and neither required any additional work other than tipping them. The DROK ones do have a thicker cable, so you'll want to take that into account when you begin tipping them.

 

[dmolavi]

"Tipping" them?