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Home built monitor/controller

The MFK's DIY section! Enjoy with a PBR ASAP.

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Post Sat Jun 15, 2019 12:32 am
baileyje User avatar
Level 4 Member
Level 4 Member

Posts: 105
Location: Eden Prairie,MN
I started a project to build an electronic monitor/controller for my tank. So far I have it monitoring temps and controlling power to pump, heater and lights. I can control it from my phone over WiFi, but will soon open to control from anywhere. So far I have spent about $50.

I will be adding water level sensor as as well. Anything else anyone can think of? Solenoid valves maybe.

D5F851A7-B09E-4F63-B23C-9ED23D9C194B.jpeg

Post Sun Jun 16, 2019 2:01 pm
Passionfish Level 20 Member
Level 20 Member

Posts: 12161
Location: apple valley, mn
What type of thermometer detects water temp?

Presume you are looking at auto water changes and possible control of CO2 injection concurrent with lighting
Like a complete unknown

Post Sun Jun 16, 2019 3:27 pm
baileyje User avatar
Level 4 Member
Level 4 Member

Posts: 105
Location: Eden Prairie,MN
Temperature uses a submersible probe which are dirt cheap these days and are rated well for accuracy.

I have manual and scheduled light management in place already. I am currently working on PID based heat control. For now just using a standard aquarium heater but the on-off cycle are controlled by the controller using relay controlled outlet. Will also allow of emergency shutoff of pump based on water level. I plan to build the auto water change, but not currently practical where my current tank sits.

I should look into CO2 injection as well.

My end goal is to be able to build something like this for <$100. I am using WiFi enabled controller so I could setup several networked into a single interface.

Post Tue Jun 18, 2019 10:31 pm
baileyje User avatar
Level 4 Member
Level 4 Member

Posts: 105
Location: Eden Prairie,MN
Current web UI for some simple functionality:

IMG_1937.jpg


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