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

[Ranjib]

Any value in salinity monitoring? Would this work?

DFRobot Analog Electrical Conductivity Meter (With Temperature Compensation) - DIY Maker Open Source BOOOLE https://www.amazon.com/dp/B01B0K1D9K/ref=cm_sw_r_cp_apa_aW0UBbKD9QW2Z

We have debated salinity (also called as EC or electrical conductivity), ORP and DO probes multiple times here. And I have punt on their support till now, they may come next in 3.0 (if theres enough excitement for this from the users) or later. Following are some details:
- In terms of reef keeping chores, these are not as important as temperature or even ph. With ATO , salinity should be same unless its being impacted by water change. ORP on the other hand has very little practical use, other than validating some already known case that can be detectable by other means.
- These are costly probes required thorough calibration and still can give anomolous reading if users are not setting up them correctly.
- It will not be a lot of work to support this in reef-pi since they are same as pH probe (we'll lean on atlas scientific/tentacle shields), but unless we have users we can't ensure proper field testing.

 

[DirtDiggler2823]

We have debated salinity (also called as EC or electrical conductivity), ORP and DO probes multiple times here. And I have punt on their support till now, they may come next in 3.0 (if theres enough excitement for this from the users) or later. Following are some details:
- In terms of reef keeping chores, these are not as important as temperature or even ph. With ATO , salinity should be same unless its being impacted by water change. ORP on the other hand has very little practical use, other than validating some already known case that can be detectable by other means.
- These are costly probes required thorough calibration and still can give anomolous reading if users are not setting up them correctly.
- It will not be a lot of work to support this in reef-pi since they are same as pH probe (we'll lean on atlas scientific/tentacle shields), but unless we have users we can't ensure proper field testing.

Makes sense.

 

[Soulreefer]

maybe this page is interesting to visit
http://www.ispindel.de/

 

[Ranjib]

maybe this page is interesting to visit
http://www.ispindel.de/

interesting.

 

[Des Westcott]

A quick question. And please excuse me if this isn't the best place to post it given that this thread is supposed to be for the development of Reef-Pi.

How do people set up automated water changes using Reef-Pi. That's my next project I'd like to set up. I've got a few ideas, but they become quite complicated quite quickly. I'm wondering if there is a simple method I'm overlooking

 

[Chris Oldale]

Hi, Could anyone help with an installation problem please?

Chaeto 1

• GuntertCorals
• Oct 9, 2018

I have been trying to get Reef pi installed for 2 days with no luck. I have followed the guides & videos but all to no avail....

I am running a Pi 3 B V2, I have tried clean installs via ssh with both the 0 release and the 3.

I can boot into the GUI

I can SSH into the Pi

I can VNC into the Pi


When I try to load Reef Pi via 192.168.1.65:80 I get the following:

This site can’t be reached

192.168.1.65 refused to connect.


sudo systemctl status reef-pi.service returns

 

[LionHeart2017]

I've been reading a long a bit, notice quite a few instances of not getting to the reef-pi page, could a shortcut be placed on the desktop when installing reef-pi?

 

[janos]

Look like am not the only one

Hi, Could anyone help with an installation problem please?

Chaeto 1

• GuntertCorals
• Oct 9, 2018

I have been trying to get Reef pi installed for 2 days with no luck. I have followed the guides & videos but all to no avail....

I am running a Pi 3 B V2, I have tried clean installs via ssh with both the 0 release and the 3.

I can boot into the GUI

I can SSH into the Pi

I can VNC into the Pi


When I try to load Reef Pi via 192.168.1.65:80 I get the following:

This site can’t be reached

192.168.1.65 refused to connect.


sudo systemctl status reef-pi.service returns

 

[LionHeart2017]

Try typing, localhost/80 into the browser

 

[speedstar]

The fourth guide on reef-pi, water level controller is published now, check it out: https://learn.adafruit.com/reef-pi-water-level-controller

The dfrobot board is just two resistors? is it essentially this

Do you need to current limit the signal out wire?

 

[b4tn]

So, I ordered and sourced a bunch of parts to start building this weekend. Unfortunately my raspberry was hijacked by a 13 year old!! There is a good chance I am going to have to buy another one lol. But I got the box I am going to use, the perma proto hat, buck converters, jumpers, wire, headers, I found a 12 volt 3 amp power supply and barrel connectors in my basement, and I have some heatsinks and fans that I may play around with. Since I already have a working controller deployed this is a side project to build over time. I was thinking though... I read some article of users complaining that the raspberry locks up often. Those that have been running it for awhile do you do scheduled reboots? Any issues with crashes, locking up, or erroneous behavior?

 

[DirtDiggler2823]

So, I ordered and sourced a bunch of parts to start building this weekend. Unfortunately my raspberry was hijacked by a 13 year old!! There is a good chance I am going to have to buy another one lol. But I got the box I am going to use, the perma proto hat, buck converters, jumpers, wire, headers, I found a 12 volt 3 amp power supply and barrel connectors in my basement, and I have some heatsinks and fans that I may play around with. Since I already have a working controller deployed this is a side project to build over time. I was thinking though... I read some article of users complaining that the raspberry locks up often. Those that have been running it for awhile do you do scheduled reboots? Any issues with crashes, locking up, or erroneous behavior?

Nice. Mine is a repurposed retropie as well.

 

[Ranjib]

I've been reading a long a bit, notice quite a few instances of not getting to the reef-pi page, could a shortcut be placed on the desktop when installing reef-pi?

we could, but that would assume that all reef-pi installation have GUI/desktop enabled. If you are accessing reef-pi from the same host (i.e from the browser running on the same Pi), just type: http://localhost on your browser,

 

[DirtDiggler2823]

maybe this page is interesting to visit
http://www.ispindel.de/

This is for salinity of TDS? This might be a good side project to work on.

 

[Ranjib]

Hi, Could anyone help with an installation problem please?

Chaeto 1

• GuntertCorals
• Oct 9, 2018

I have been trying to get Reef pi installed for 2 days with no luck. I have followed the guides & videos but all to no avail....

I am running a Pi 3 B V2, I have tried clean installs via ssh with both the 0 release and the 3.

I can boot into the GUI

I can SSH into the Pi

I can VNC into the Pi


When I try to load Reef Pi via 192.168.1.65:80 I get the following:

This site can’t be reached

192.168.1.65 refused to connect.


sudo systemctl status reef-pi.service returns

Welcome to reef2reed. You'll love it here.

I dont understand the significance of that Chaeoto image, I am assuming thats just accidental. Regarding your trouble, can you try again posting the log output. Also, share some details around your reef-pi setup, particularly how you are accessing it?

 

[Ranjib]

This is for salinity of TDS? This might be a good side project to work on.

Its for salinity, not TDS

 

[DirtDiggler2823]

Its for salinity, not TDS

I'll have to find the US components for this, and since it doesn't look too expensive, i should be able to build one this year. Thanks for clearing that up.

 

[Ranjib]

So, I ordered and sourced a bunch of parts to start building this weekend. Unfortunately my raspberry was hijacked by a 13 year old!! There is a good chance I am going to have to buy another one lol. But I got the box I am going to use, the perma proto hat, buck converters, jumpers, wire, headers, I found a 12 volt 3 amp power supply and barrel connectors in my basement, and I have some heatsinks and fans that I may play around with. Since I already have a working controller deployed this is a side project to build over time. I was thinking though... I read some article of users complaining that the raspberry locks up often. Those that have been running it for awhile do you do scheduled reboots? Any issues with crashes, locking up, or erroneous behavior?

You know you can always have couple of extra sd cards, and swap them when your kid is not playing with it and use for testing/building.
The LM2596 buck converter modules that i recomend is rated for 3A. Most of the perf board (including perma proto i think) are rated for 4A, something to remember.
I have never experienced Raspberry Pi locked up, unless by lock up you mean wifi connectivity lost. I did experience some network connectivity lost, and the way I fixed it, is by dropping a systemd timer unit that will restart networking service every day at midnight, so even if my wifi router acts up and Pi lost internet connectivity, its reinstated every midnight, without any impact to reef-pi

 

[Ranjib]

A quick question. And please excuse me if this isn't the best place to post it given that this thread is supposed to be for the development of Reef-Pi.

How do people set up automated water changes using Reef-Pi. That's my next project I'd like to set up. I've got a few ideas, but they become quite complicated quite quickly. I'm wondering if there is a simple method I'm overlooking

I have actually not tested reef-pi for a full automatic water change, we are releasing the macro feature to assist with these kinds of workflow. I am planning to use the doser module for continuous water change in one of my pico, while for the nano i want to use one of more macros for semi automatic water changes (i.e. they'll be triggered manually, but once triggered they'll invoke a sequence of actions). This is something I expect to evolve over time, as reef-pi matures,

 

[Ranjib]

The dfrobot board is just two resistors? is it essentially this

Do you need to current limit the signal out wire?

It has a few capacitors in addition,