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

[AquaRaider44]

@Ranjib Just got my ph calibration solutions at 7 and 10. What is the recommendation on how to do it. Should I wash the probe in rodi then put in 7 first or 10 first? How long should it sit there? Do I just wrote down the mv values or do I need to run some commands? Thanks! Excited!

 

[Ranjib]

Seems like that works. Seems as if the settings are confused or maybe I am lol. I assumed min was to keep it on a minimum light at all times regardless of timer and start was how you wanted it to start or something. Idk lol.

yes. The start setting is confusing and I am planning to remove it. Light UI will go through many changes, including pluggable profiles, ability to customize 1 min to 15 min interval values etc etc..

 

[Ranjib]

@Ranjib Just got my ph calibration solutions at 7 and 10. What is the recommendation on how to do it. Should I wash the probe in rodi then put in 7 first or 10 first? How long should it sit there? Do I just wrote down the mv values or do I need to run some commands? Thanks! Excited!

temperature is more important. Gentle rinse in normal salt water or ro di water is good but not necessary if you ask me. Whats most important is the calibration done at same temperature as tank and the probe is there for some time so that the readings gets settled (few minutes at least)...

 

[Ranjib]

@Ranjib Just got my ph calibration solutions at 7 and 10. What is the recommendation on how to do it. Should I wash the probe in rodi then put in 7 first or 10 first? How long should it sit there? Do I just wrote down the mv values or do I need to run some commands? Thanks! Excited!

Yes.. keep it for few minutes, poll the probe at 15s interval and just watch the readings in dashboard or log, note it down.. then run the calibration command

 

[Ranjib]

When will we see that? I'd love to see that asap!

Don't ask for timelines they imply promises, and we have only one planned release , during thanksgiving
all the beta releases will be in between but not any specific cadence, its as and when I get those done..

 

[AquaRaider44]

Don't ask for timelines they imply promises, and we have only one planned release , during thanksgiving
all the beta releases will be in between but not any specific cadence, its as and when I get those done..

Any way I could buy you a coffee or red bull to get that pushed in the next beta

 

[ummwhy]

Can someone help me troubleshoot a Temp Sensor Probe DS18b20. It was working fine, I rebooted the pi and it went missing.
Red - GPIO 1, Yellow - GPIO 4, Black - Ground GPIO 6 4.7ohm resistor. I tried resetting the database using
sudo systemctl stop reef-pi.service
sudo rm -f /var/lib/reef-pi/reef-pi.db
sudo systemctl start reef-pi.service
with no luck

 

[AquaRaider44]

Can someone help me troubleshoot a Temp Sensor Probe DS18b20. It was working fine, I rebooted the pi and it went missing.
Red - GPIO 1, Yellow - GPIO 4, Black - Ground GPIO 6 4.7ohm resistor. I tried resetting the database using
sudo systemctl stop reef-pi.service
sudo rm -f /var/lib/reef-pi/reef-pi.db
sudo systemctl start reef-pi.service
with no luck

Did you try to delete the sensor and re add it

 

[ummwhy]

Did you try to delete the sensor and re add it

Won't even show up

 

[BenB]

Try an other pin! Or an other temp sensor??

 

[ummwhy]

There wouldn't happen to be an alternative method I could try 1st? Everything is in that box

 

[BenB]

Maybe one of the temp sensor wires are broken, or are loose inside the box.

 

[ummwhy]

Maybe one of the temp sensor wires are broken, or are loose inside the box.

Glued down, looking for command line testing... If it won't show up in term I'll replace it then.

 

[AquaRaider44]

Glued down, looking for command line testing... If it won't show up in term I'll replace it then.

Best thing to do is open it up and play with it.

 

[AquaRaider44]

How do I create the calibration.json

 

[Mikeneedsahobby]

Glued down, looking for command line testing... If it won't show up in term I'll replace it then.

Most common cause is an intermittent wire touching ground in the connectors. The wires are small. The ground ring is big and it can move. Check wiring carefully.

 

[Mikeneedsahobby]

How do I create the calibration.json

Create a text file. Type your stuff in it. Save it as calibration.json

I created it in rasbian so I wouldn’t need to move the file.

 

[AquaRaider44]

Create a text file. Type your stuff in it. Save it as calibration.json

I created it in rasbian so I wouldn’t need to move the file.

Got it thanks.

Check out my build thread for a crazy update!

 

[Ryan115]

Glued down, looking for command line testing... If it won't show up in term I'll replace it then.

In your initial question you said a 4.7ohm resistor, I hope you meant 4.7k ohm...

The commands to check it out would be:

cd /sys/bus/w1/devices

ls   #this will show you the devices recognized by the system

cd 28-XXXXXXXXXXXX   #change the Xs to the number that showed in the previous step

cat w1_slave   #this should give you a raw reading from the sensor

 

[Ranjib]

There wouldn't happen to be an alternative method I could try 1st? Everything is in that box

Welcome to reef2reef