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

Hey all. Just a little warning - although t may be obvous to most of you out there. I hooked my Jebao RW8 Wavemaker up to one of the relay circuits and ran it as equipment. I soon noted that it was running all the time regardless of whether it was "on" or "off" according to Reef-Pi. Anyway, after a bit of experimentation, I found that it burns the relays closed.

So, anyone planning to use a RW8, be aware!

The RW8 is rated at 23W. What size relay should I look for to accomodate that?
 
So I've completed the HAT testing successfully :)

Only I2C I couldn't test (don't know what happened to my PWM module) but expect it to be ok as well. The board is relatively easy to build and fits nicely on the PI.

The files can be found at https://github.com/vandegraaf/Reef-PI_PCBs

the Reef-PI_HAT.zip file contains all the required files for ordering PCB's. There are some improvements to the PCB lay-out to have better connections for power and the dosing pumps but should have no impact on the functionality.
There is also a PDF file describing all the connectors and related GPIO signals.
 
Hey all. Just a little warning - although t may be obvous to most of you out there. I hooked my Jebao RW8 Wavemaker up to one of the relay circuits and ran it as equipment. I soon noted that it was running all the time regardless of whether it was "on" or "off" according to Reef-Pi. Anyway, after a bit of experimentation, I found that it burns the relays closed.

So, anyone planning to use a RW8, be aware!

The RW8 is rated at 23W. What size relay should I look for to accomodate that?

That will likely be an issue with the relay, not the pump. All relays can fail and unfortunately yours happened to fail in the on position. It's likely just an unlucky failure. Someone posted a video earlier about cheap relays vs expensive ones and their failures, at the end of the day the cheap relays will almost always be good enough for our purposes but there is always a chance one will fail.
 
So I've completed the HAT testing successfully :)

Only I2C I couldn't test (don't know what happened to my PWM module) but expect it to be ok as well. The board is relatively easy to build and fits nicely on the PI.

The files can be found at https://github.com/vandegraaf/Reef-PI_PCBs

the Reef-PI_HAT.zip file contains all the required files for ordering PCB's. There are some improvements to the PCB lay-out to have better connections for power and the dosing pumps but should have no impact on the functionality.
There is also a PDF file describing all the connectors and related GPIO signals.
That is great to hear! I'll look into how much it would cost to get one shipped to Aus in the next couple of days, awesome job! P.S I wanna see some more pics of it too :p
 
So I've completed the HAT testing successfully :)

Only I2C I couldn't test (don't know what happened to my PWM module) but expect it to be ok as well. The board is relatively easy to build and fits nicely on the PI.

The files can be found at https://github.com/vandegraaf/Reef-PI_PCBs

the Reef-PI_HAT.zip file contains all the required files for ordering PCB's. There are some improvements to the PCB lay-out to have better connections for power and the dosing pumps but should have no impact on the functionality.
There is also a PDF file describing all the connectors and related GPIO signals.


Great work!!!

Thanks for this!
 
Hi to all,Q to Ranjib,the temp sensor have only 60 sec interval ?Thank you
 
That is great to hear! I'll look into how much it would cost to get one shipped to Aus in the next couple of days, awesome job! P.S I wanna see some more pics of it too :p
What do you want to see? I don't have an aquarium yet :confused: , am still in the 'planning phase'. Should become a reefer 250, still reading.

ps: I love Australia, been there twice. live however in Aus(tria)
 
Thinking about getting a 7" touchscreen for my build, anybody using one, pros and cons, advice,
Thanks
 
So I've completed the HAT testing successfully :)

Only I2C I couldn't test (don't know what happened to my PWM module) but expect it to be ok as well. The board is relatively easy to build and fits nicely on the PI.

The files can be found at https://github.com/vandegraaf/Reef-PI_PCBs

the Reef-PI_HAT.zip file contains all the required files for ordering PCB's. There are some improvements to the PCB lay-out to have better connections for power and the dosing pumps but should have no impact on the functionality.
There is also a PDF file describing all the connectors and related GPIO signals.

Where do you order these from?
 
Thinking about getting a 7" touchscreen for my build, anybody using one, pros and cons, advice,
Thanks
I have two, i used one for several months and another one dedicated for makerfaire. My learning was its nice, you dont need a internet or even local network, but I dont have that usecase. I always have internet, and almost always with a internet connected device (laptop or phone) and I most time I found walking upto the tank is a lot of work :-) , when the everything is right here with me (since i have laptop or phone). I can see folks with bigger tanks have use for something like this. I would expect some improvement around turn on/off (like adding mechanical buttons) etc.
 
Where do you order these from?
I ordered from jlcpcb.com. PCB's are very cheap but shipping costs high (especially for fast delivery). Hat a quick view at allpcb.com as well, they may be cheaper for single boards (5) and fast delivery for $20. For me the advantage from jlcpb is that you can upload the gerber (zip) file and directly see the result and if it's producible. I've read some claims that sometimes for more complex boards they suddenly cancel the order without notice, just refund. Of course for professional use this is not ok, but for our purposes, if they can't make the board, we probably can't solder it.... :p
 
DSC_0436.JPG
 
Hi to all,would like to know what is your experience with DS18B20 temp sensor?Have two digital sensor what is show different temp in the tank.All 3 show different temp,what should i think which one is the right one.Just like to know your experience .Thank you
 
So I've completed the HAT testing successfully :)

Only I2C I couldn't test (don't know what happened to my PWM module) but expect it to be ok as well. The board is relatively easy to build and fits nicely on the PI.

The files can be found at https://github.com/vandegraaf/Reef-PI_PCBs

the Reef-PI_HAT.zip file contains all the required files for ordering PCB's. There are some improvements to the PCB lay-out to have better connections for power and the dosing pumps but should have no impact on the functionality.
There is also a PDF file describing all the connectors and related GPIO signals.


I was looking this over again last night. One question, and forgive me if this was already discussed. Is there a way to interface the Relay connections with a DB9 serial so I can use the SPR8 power block?

Thanks
 
Hi to all,would like to know what is your experience with DS18B20 temp sensor?Have two digital sensor what is show different temp in the tank.All 3 show different temp,what should i think which one is the right one.Just like to know your experience .Thank you
how much difference you are seeing? if its consistent and within +/- 0.5 degree Celsius then its ok.
 
Hi Ranjib the difference is 1 degree F not Celsius,i think that is not a problem.Just like to know more experience.Thank you
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%
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