reef-pi :: An opensource reef tank controller based on Raspberry Pi.
- Thread starter Ranjib
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I am doing some last minute testing one the pi pwm stuff.. will cut a release soon as I am done with it (tonight or at max this week)
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I think the power supply part will be complicated. If you have a single power supply (meanwell, in your case) and dividing it across different voltage inputs (5v, 3.3v, 12v, 24v) and each of them has different power consumption portfolio (LED is constant current, pumps will have high inductive load and back EMF) , they will interfere with each other. You'll need significant amount of passives (capacitors, mostly, and may be diods/resistors as well) at each junction of this custom PSU. I myself not very good at designing these, and learning, just be aware of this. I can definitely call out the things that worked for me in All in one setup (ph + kessil + outlets+temp +ato) ,, but this excluded powering LED directly or controlling pumps from the same unit.
I have tried experimenting with pico PSUs which provide different power outputs but for some reason it didnt work (i think the unit i was testing was faulty).
This is something we have to experiment and get sorted... keep us posted and start a thread if possible.
Thank you so much for taking the time to write your requirements down and giving reef-pi a try, we really appreciate your feedback
Thank for the reply your right I totally forgot about led light need a consistent current and motor power cycle. I just look into multiple voltage power supply their all too big and still need to regulate the amp. Plus way to expensive.
Guess I'll just build a separate junction box just for the power. Using AC line in and connect each individual original component power supply onto an terminal strip block.
Once I get all the parts in will start a project thread.
Guess I'll just build a separate junction box just for the power. Using AC line in and connect each individual original component power supply onto an terminal strip block.
Once I get all the parts in will start a project thread.
OP
OP
Hola reef-pi users,
I have cut a bug fix release 2.5 to address the pi pwm frequency issue. It has some other miscellaneous driver fixes and dependency packages updates. Other than this , it’s really a small release and I am primarily focused one the 3.0 ui
Installable Packages are available from github: https://github.com/reef-pi/reef-pi/releases/tag/2.5
I have cut a bug fix release 2.5 to address the pi pwm frequency issue. It has some other miscellaneous driver fixes and dependency packages updates. Other than this , it’s really a small release and I am primarily focused one the 3.0 ui
Installable Packages are available from github: https://github.com/reef-pi/reef-pi/releases/tag/2.5
brandon clow
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Does this include a bug fix for #794? If so I can run this tonight and report back. I have avoided moving to 3.0 or 2.4 due to the never off so I am glad to test if its in there.
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Nope, I am yet to fix the 100% pwm on pca9685 issue in next release
brandon clow
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Hi I would like to measure the water level in a tank using my reef pi. (That is the actual water level not just the level is low with a traditional optical sensor)
Have come across the ‘etape liquid level sensor’ (google it). It says it works the same way as a thermistor. Could I define it as a thermometer to report water level (or any other way within reef pi? Thank you
Have come across the ‘etape liquid level sensor’ (google it). It says it works the same way as a thermistor. Could I define it as a thermometer to report water level (or any other way within reef pi? Thank you
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h103, hs110, hs300
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long back (pre 1.0) reef-pi used to support etapes (reef-pi used to be called as reefer during that time). I dropped its support due to lack of usecases and the complexity in wiring (SPI involves more wire), in favor of photoelectric sensor and float switches.
Now that we have HAL (hardware abstraction layer), it wont be hard to bring back support for etapes, but I have to sort out the usecases.
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Another common technique is to measure the weight of the reservoir and calculate the level or volume from the weight. reef-pi doesn't support load cell weight sensors yet, but the driver system with v3.0 will make this much easier.
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Yess,
, apologies for the type
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I have no plan for it right now. As I was saying I want to understand how I’ll be using this to solve a specific problem related to reef keeping or any aquarium setup in general. Those bits are essential to understand what other pieces needed and if there exist alternate techniques
Some possible uses
1. Measuring how much water is let in R.O. rather than just 'Refill'
2. Using Reefpi to automate water changes in a more dynamic way e.g. 10l or 20l rather than at a set point of the infrared sensor
Hi Ranjib it is possible if you can tell know how much current does the kessil A80 0-10v draw per channel? I figure must be slow low 50ma ish per channel?
I'm calculating to see if my sinking output can handle the job or not. I'm using an automation hat there 3x 24v sinking output on board but can only handle 500ma combine. I already got one of the output slotted out to run 2x 12v fan at 150ma each. So not much amp left to share.
I'm calculating to see if my sinking output can handle the job or not. I'm using an automation hat there 3x 24v sinking output on board but can only handle 500ma combine. I already got one of the output slotted out to run 2x 12v fan at 150ma each. So not much amp left to share.
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