Another Reef Pi

Orbela

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Yes like the title says it. Another Reef Pi. Let start with

Background
I am training in Biology then decided it wasn't for me and now I am currently an Engineering student and looking to major in Aerospace Engineering. I am certified in Solidworks and I am a novice in Autocad and I am doodling in fusion360. Hopefully this will allow me to 3D print all my components cases, mounting hardware, probe holders. There is a lot of cool designs out there I can use.

Usage
  • Equipment controller
  • Temperature Controller
  • Autotop off
  • Auto Water Change
  • Ph monitor
  • Doser
  • Remote Access
Other Applications
  • Once proficient in making these controllers I plan on using Reef Pi to make a Overland Light set up for my Jeep. So I can use it as a lighting controller but will also add physical switch as a by pass in case app ever decides to take a dump on me. Lucky I think it will be easy as my Jeep has a router on board thanks to AT&T trying to sell hotspot. Hopefully it will work. This will also give me access to my aquarium when ever I go campling/hunting I will still be able to monitor my aquarium
 
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Orbela

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So far I have built the equipment controller and soldered for temperature and auto top off. I learn quiet a lot in how Raspberry Pi works.
I am still looking to see if I can add a Ph probe to this set up.
0CC105B0-D70D-47AB-988F-0F62D7D70F4F.jpeg 34293A4F-2E57-41E6-93C2-773AEB6650C6.jpeg
This is a Fusion 360 design I can up with for the controller to keep it compact. It’s 110mm squared. Still need to incorporate Ph probe but I am seeing how I can fit it into the Pronto Hat
If anybody know will this circuit work but concern with the 5v power line. Not sure if this will work.
17A61243-873C-47A8-A0AB-E06DE782B656.jpeg
Circuit picture:
Red- 5v+
Black Circle Pins
Black Line: GRD
Yellow: SDA
Green: SCL
Blue: 437k resistor

Is there anything in this circuit that doesn’t look good? I am trying to emulate this Circuit by @Ranjib from https://learn.adafruit.com/reef-pi-guide-7-ph-monitoring/circuit-construction.
want to do it all on the same Pi hat to keep the controller compact.

C556842B-5081-4E7D-9097-F3EDC6AFD87B.jpeg
1604951833181.png
 
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Orbela

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Test my layout and tolerances.
Looks good probably will shave off a bit on the right side it was a bit tight.
Had a bit of stringing but it’s normal for PETG. Can’t seem to fully get rid of it.

BD595782-3065-43C6-ACD5-92615FE30AF3.jpeg C198BE55-4E7E-40DF-95B8-27D857DB54A0.jpeg 7D5508A3-0D06-477A-982F-D0AEE7195E25.jpeg
 
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Orbela

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@Ranjib I do have a question for the circuit board, is this layout okay? I know the Ph monitor is a stand alone is it possible to add the Ph to this Pi hat so I can keep everything compact? I knew I should of paid more attention in clas

Example this circuit.

55D60345-427D-4F35-996D-32E8CD5B0E3E.jpeg
 
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Orbela

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She is alive!!!
It took 9 hours for printing and my stringing sucked but she is down printing had to do some work on the case. But I still need a lot of post work on the case on the outside. Probably paint it to smooth it out and make it sleek.
C7EB51A7-7EAD-498A-BFA3-13DB57DEA563.jpeg
I had to heated the wall with a torch so I can fit the micro sd card since I miscalculated the distance I needed. I need to revise the design to add another 5mm to adjust for the Micro SD. I accounted for it but I made the tolerances too small.
46AA1D9E-97C2-49E8-B944-E22EB63D2671.jpeg

Here are different angles of the case. I still need to add the auto top off and Ph probe. But I am a bit stuck on the Ph probe. Not sure which to choose. I may need advice on this and post on the main Reef Pi thread. I also need to reinforce the connector wall since it is a bit fragile so I make it double the thickness. I also removed the plastic height adjusters. M3 screws were a lot better to help support the pi hat.
06D64F1E-C6C6-4A2C-AEEF-C45E4D9AB4AE.jpeg BB33905A-CFF5-41E0-8007-35C1486947DB.jpeg 4CCF7F1D-E8A2-41B0-A175-1F878C80D52C.jpeg

Looking at these pictures I am thinking the Ph probe will need to have more space. Ill know when I get it. If anything I will need to put the Ph probe first then add the DB9 connector.
D49F7651-36E3-40E7-95DF-B3E97B0BF9F2.jpeg 139AD184-5F66-4206-8CE5-F40FB5A4AE11.jpeg AFF21B63-E95A-49F5-9476-98F5F1C72003.jpeg
 
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Orbela

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It is working.
I am worried that it has 5 error messaged, but might be because I am missing some sensors

1605256885589.png
 
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