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

[Bigtrout]

Ah, gotcha. Yeah, I didn't mind it disappearing which is why I hadn't asked before. I figured that the slope would be relatively linear. Just thought I'd ask while the thread was on the topic :)

No prob...the slope is very linear...the only real diifference is the offset per probe

 

[Ranjib]

I think the pi B has different gpio drivers than recent models so it won't work. You can get pi zero w for $10. Less power more compact.

Pi b will work just fine. Instead of pi 3 build use the pi zero build. It’s based on arm6 architecture, that’s all . Let me know if it does not work , I’ll check it out. But I personally tested once and all pi zero build will work on pi b

 

[Ranjib]

What two point of calibration are people using? 4/7, 7/10, 4/10?

My thought was 7/10 since where the typical range falls for reef tanks.

7/10

 

[Ranjib]

Speaking of pH calibration, what ever happened to the 3-point option, @Ranjib ?

Seconding what @Bigtrout mentioned. After reading through some docs I felt it’s not required. If you encounter evidences that indicate otherwise, please share , I’m happy to do the right things

 

[Ranjib]

Does anybody know if reef pi works with a Raspberry pi B rev2? I can get the web GUI running but none of the IO work. Not even test LEDs.

Do you have a build thread. We’ll need details including your setup and test circuit etc. please start a thread with the details that we can read through and answer.

 

[Ranjib]

No prob...the slope is very linear...the only real diifference is the offset per probe

On this note, I’d love to assess the impact of temperature compensation .. may be sometime in future

 

[DirtDiggler2823]

Has anyone tried the Noopsyche lights to their reef-pi yet? If so, what cables did you have to build? Looking at getting some soon and I'd love to tie them into my controller.

 

[AbjectMaelstroM]

Took a peek at the ph reading this morning and looks like there was a pretty big (or at least looks big) drop, about 500-600 points on the raw reading scale. Broke out the red sea test kit and it kinda looks like 8.0 so about 0.2 drop overnight.

Interesting to see if it climbs back up throughout the day. Kinda looks like it's already starting to climb.

 

[DirtDiggler2823]

Took a peek at the ph reading this morning and looks like there was a pretty big (or at least looks big) drop, about 500-600 points on the raw reading scale. Broke out the red sea test kit and it kinda looks like 8.0 so about 0.2 drop overnight.

Interesting to see if it climbs back up throughout the day. Kinda looks like it's already starting to climb.

Looks like your pH went up

 

[Bigtrout]

Looks like your pH went up

I was going to say the same. The more negative the number the HIGHER the ph

Dont know the mechanics of a reef tank but in my FW planted my ph peaks during the day when the plants are using co2 making the water more alkaline. Then it falls to the lowest point at night when the plants quit using co2 and co2 levels rise causing the watet to get more acid.

There is definitely a small ph swing in a reef tank too. Maybe someone could chime in but that small of a swing seems normal. That graph looks pretty good. Get your calibration packets and calibrate it!

My probe has been very accurate so far.

 

[skywurz]

Pi b will work just fine. Instead of pi 3 build use the pi zero build. It’s based on arm6 architecture, that’s all . Let me know if it does not work , I’ll check it out. But I personally tested once and all pi zero build will work on pi b

I stand corrected. You rock @Ranjib !

 

[That Crusso Kid]

Has anyone tried the Noopsyche lights to their reef-pi yet? If so, what cables did you have to build? Looking at getting some soon and I'd love to tie them into my controller.

To the best of my knowledge no one has implemented using reef-pi with Noopsyche lights yet.

 

[Schreiber]

To the best of my knowledge no one has implemented using reef-pi with Noopsyche lights yet.

I talked to a guy at my LFS yesterday about them. It can't be that difficult to implement, but it would definitely require some surgery, like the Aqua Mars, so someone could figure out what control signal they use.

 

[That Crusso Kid]

I talked to a guy at my LFS yesterday about them. It can't be that difficult to implement, but it would definitely require some surgery, like the Aqua Mars, so someone could figure out what control signal they use.

I do recall that several of the users of Noopsyches were going to develop a phone app for control because they were having issues with the supplied controller. FWIW - not that it would necessarily have an effect, or not, but I seem to recall that the bluetooth architecture in the units is old technology. It made developing a functional app a moot point.

 

[AbjectMaelstroM]

It would be interesting if it can be done, if not wireless, then with an umbilical cord to the pi. From what I know about the lights, they're quite good for the price.... The only weakness being a rather janky remote.

 

[That Crusso Kid]

It would be interesting if it can be done, if not wireless, then with an umbilical cord to the pi. From what I know about the lights, they're quite good for the price.... The only weakness being a rather janky remote.

I am in complete areement.

 

[Ryan Turner]

anyone else having issues with the dashboard not showing the graphs or remembering what was there? in config it shows the rows and columns but not what was suppose to be there. I did a fresh install of everything on a sd card to make sure it wasnt something I did. any ideas?

 

[Ranjib]

Has anyone tried the Noopsyche lights to their reef-pi yet? If so, what cables did you have to build? Looking at getting some soon and I'd love to tie them into my controller.

I wanted to, but got busy with other things. Its a wifi based control system from my preliminary investigation. I like the light, but its current control system makes it least desired, so having a reef-pi integration will really help a lot of people. But i dont know when I;ll get to work on it, im currently tied up with all sorts of house purchasing work..its very involved and stress full process, to say the least :-/

 

[DirtDiggler2823]

I wanted to, but got busy with other things. Its a wifi based control system from my preliminary investigation. I like the light, but its current control system makes it least desired, so having a reef-pi integration will really help a lot of people. But i dont know when I;ll get to work on it, im currently tied up with all sorts of house purchasing work..its very involved and stress full process, to say the least :-/

No rush. Please get yourself and your family settled. We can wait.

 

[AbjectMaelstroM]

Is there a way to reset the graph scale without deleting and re-making a probe (pH) ?

I got my ph probe calibrated but it still has the raw value scale in the 1000s....makes it hard to see variations now that it's reading 8.35 lol. Now I don't want to delete the probe and make a new one because I don't have any more calibration packets....and I'm assuming once probe is deleted the calibration goes with it.