hydromisc VS Mycodo

If RO isn't an option or you are committed to using tap water, you can look at this for some ideas: https://github.com/hydromisc/hydromisc/blob/master/doc/nutrient-design.md

For controlling everything, the plan is to use a Raspberry Pi running Mycodo, which will connect to the the temperature/humidity sensors, and also control the LED lights, the misting sprayers, and the heating coil.

As others have pointed out, there are quite a few alternatives already on the market, including open source ones. If you are attempting to turn this into a marketable product, you might be disappointed.

I'd also take a look at mycodo (here is the repo) which I personally found much more powerful than BrewPi and has an okay API I think if you want to set up your own frontend

Update: Found out about: MyCodo - https://github.com/kizniche/Mycodo (opensource Environmental Regulation System for rasbery pi) https://www.youtube.com/watch?v=nyqykZK2Ev4

Mycodo is great for the software side, but I don't think they have libraries for any wireless sensors.

There's tons of land unused in the US. But I also agree with you. I haven't played with this one yet, but it looks very nice

https://github.com/kizniche/Mycodo

Inkbird has a good reputation at a relatively low cost. Personally, I like to build my own systems using the Mycodo system running on Raspberry Pi W's.

Here's my quick intro to hydroponics.

If you want bridge your grow with automation and coding I recommend everyone take a look at

https://github.com/kizniche/Mycodo

If you're looking for instrumentation/controllers for your grow (CO2, PH, TDS, EC) I recommend:

https://atlas-scientific.com/

If you're indoor and need lighting, build your own LED based lighting. Use the Samsung LM301B or LM301H led. I shopped https://atreumlighting.com/ for my last DIY kit and my light fixture came out perfect.

If you're buying nutrients or supplements, always try to get them in powered formula. Liquid based formulas are typically more expensive because you're paying to ship the water around and water is heavy. Most nutrient lines provide a feed schedule and dosing. When doing nutrients, less is more, never give them too much fertilizer, you will damage your grow and burn your plants.

Yes, I'm growing cannabis, you can see some of the fun we've had over the years at:

https://www.instagram.com/fantasygrowtent/?hl=en

Check out this environmental monitoring and control software I’m using on a raspberry pi with my grows, it’s amazing: Mycodo