REEF2REEF Saltwater and Reef Aquarium Forum

    75 Gallons of No Excuses, Mar 20, 2019
  1. kapnkush608

    #reefpi coming soon to a tank near me.
  2. reef-pi :: An opensource reef tank controller based on Raspberry Pi., Mar 1, 2019
  3. Ranjib

    We talked about this in past. We are not confident if the volume of posts justify a sub forum , we are certainly not sure if we’ll have such volume consistently over time in future . If we see this is the case then we can ask the mods , currently I don’t see the need. You can use #reefpi to cluster related things , and reef-pi website now links a handful of useful links(including build threads) that we can use as stop gap measure
  4. A Reef-Pi that can run up to 8 dosing pumps, Feb 28, 2019
  5. Ranjib

    Very nice.. this is awesome. This is pretty much the dosing tab, but implemented via relay's and timers. I like this. What the dosing tab allows (variable voltage) can be achieved here as well by adjusting the lm2586 (assuming the relays are controlling dc pumps)

    Thank you for sharing #reefpi
  6. Geeks reef-pi "possible" build., Feb 16, 2019
  7. Ranjib

    Exciting :) , tagging along #reefpi
  8. 5 WINNERS!! Make Testing Easy in 2019! A New GIVEAWAY from Marine Depot and Hanna Instruments!, Feb 13, 2019
  9. Young_Reefer

    And I donor test phosphates (I would love to withthe ultra low range checker!), I use a cheapo refractometer for salinity, and multiple temperature probes accompanied by a #reefpi for temperature.
  10. Pickupman66 Reef-pi Build, Jan 16, 2019
  11. Ranjib

    Thank you for sharing :) #reefpi
  12. ATO, Reef-Pi Noob Question, Dec 12, 2018
  13. Ranjib

    Let me check out the details and get back to you
  14. JUST ANOTHER reef-Pi BUILD, Dec 10, 2018
  15. Ranjib

    Yesss :) . Thank you :) . Now we can have all the details of your build in one place. Do you have reef-pi running ? #reefpi
  16. Another reef-pi build., Nov 23, 2018
  17. Ranjib

    Wow, I am finding this thread right now. #reefpi
    Awesome :0-) . So you have not connected any relay/powerstrip yet. Will wait for the scratch built relay updates.
    Very clean build . I like the driver choice for the dosers. Keep us posted.
  18. Low pH issues, Nov 17, 2018
  19. Ranjib

    Ok, I am revisiting this as I have learned a lot since I reported this, and I think others would find it useful,
    After @Randy Holmes-Farley pointed out this can not be correct, I went read some of his prior write ups and also some technical documentation about pH probes. I was not using a voltage isolator along with the pH sensor circuit, without this the sensor reading are prone to aberrations from stray voltage, from tank or from controller's internal circuit. I didn't panic after the initial findings as my corals were OK and there was ample advice in this forum to not chase pH without understanding whats going on.

    Couple of days before I have added the recommended voltage isolator in pH sensor circuit and that address this issue. There were two noticeable difference, first, my tank pH suddenly jumped by 1, earlier it used to vary from 6.6 to 7.7 and now it varies from 7.6 to 8.2 . Second , the ph readings do not show a jittery curve any more, they are smooth contiguous readings. Here is a chart showing the changes from past two days

    I have orderd a separate pH testing kit as well, to validate the readings independently. But I think I have dialed it now. #reefpi