My reef-pi build

[Fishyj]

I don't have access to one, just a cheep 3d pen.

 

[Fishyj]

Even though everything with the temp probe was removed but my error would not go away. I ended up deleting the database which solved my problem.

 

[Diamond1]

Hey guys, sorry been away learning CAD :confused:! I designed a temp probe potting tube and hanging arm for it. I'll post it on Thingiverse if you want and have access to a 3D printer?

Please post a link to your probe holder.

 

[Fishyj]

I was playing around with the temp probe and mine seems to only work with a 10k resistor. I did try the 4.7k resistor but I can't seem to get it to work. Has anyone else have this problem?

 

[Andrewalex11]

Sometimes wire length is a factor in what resistance works best, I've heard of people using very long cables with only 2.2k ohm resistors.

 

[Fishyj]

If I understand this right, I will have to figure out what temp probe length I need then figure out what resistor to use?

 

[Andrewalex11]

theres no real calculation that anybody has come up with, if it works fine with a 10k resistor then just use that.

 

[Ranjib]

If I understand this right, I will have to figure out what temp probe length I need then figure out what resistor to use?

Theres a lengthy documentation on this. @Erica-Renee had went through this at length for her builds. I just find playing with 4.7K/10K resistor and 3.3V or 5V power supply easier :-)

 

[Erica-Renee]

Theres a lengthy documentation on this. @Erica-Renee had went through this at length for her builds. I just find playing with 4.7K/10K resistor and 3.3V or 5V power supply easier :)

Wire type and voltage also plays a big roll. I am using what i think is 32g CAT3 .

there is a link in this thread somewhere about a cave scientist who went 10,000 m or more with the same temp sensor we use putting a sensor ever 10 m to see how temp changes deeper down.. I built mine off his research .

 

[Fishyj]

I have been working on my box waiting for my temp probe and optical sensor for the ato to come in. I have a question reguarding the ato. If I wanted to use floats how would I wire them in?

 

[Diamond1]

I have been working on my box waiting for my temp probe and optical sensor for the ato to come in. I have a question reguarding the ato. If I wanted to use floats how would I wire them in?

Something like this works for mechanical switches.

 

[Fishyj]

Thanks, just need a resistor now.

 

[Fishyj]

Even though I have been working on my own board, I could not pass up on Mike Lanes board. I will keep working on mine but I will be eventually switching over to his board.

 

[Diamond1]

Keep us posted. The Mike Lane boards look nice. @Bigtrout used one for his build and really likes it.

 

[Bigtrout]

Keep us posted. The Mike Lane boards look nice. @Bigtrout used one for his build and really likes it.

Yes so far so good with the Mike Lane board, it has performed flawlessly! There is a header or connector for everything you could want, its only weakness is it only uses 9 channels of the PCA9685, but thats easily solved by adding another PCA adafruit board if you need more.

 

[Fishyj]

I have been at a stand still waiting for the board so I decided to play around with a case. Which one do you like better? The plastic case only needed a couple of holes cut for ato and temp sensor where the metal case would rquire more work. The pi hat only has the ato and temp circuits. I have not put in the outlet controls as of yet.

 

[Bigtrout]

I went with plastic because if u put the raspberry pi in a full metal case the wifi wont work well.

 

[Ranjib]

I have been at a stand still waiting for the board so I decided to play around with a case. Which one do you like better? The plastic case only needed a couple of holes cut for ato and temp sensor where the metal case would rquire more work. The pi hat only has the ato and temp circuits. I have not put in the outlet controls as of yet.

I like the clear case. I just find it amusing to see the internals :-)

 

[Fishyj]

I received my board from Mike Lane and first impression is WOW! I really do like the board a lot. I have been playing around with it for a few days now and I hope to have it up and running within a week. I have a relay on order due to 1 of mine quitting. I am also trying to figure out actually how many outlets I need controlled by reef-pi. This has been a long process but I was not looking for quick results.

 

[Bigtrout]

Slow and steady, learn as you go.
Mike designed a nice hat for an all around build, was the same price as buying a pca board, a perma proto board and jumpers, to me it was a no brainer!