Open Source Code and instructions for making your own grow box using off-the-shelf components
you need: ESP32 WiFi Smart plug (Tasmota firmware!!!) CO2 Sensor (MHZ19B) Temp/Humidity Sensor (DHT22) 1.8" TFT Screen (SPI) 3 Buttons 5V Power Supply
Skill to make Basic electrical connections (solder or crimping)
you also need: A fridge, small 12V heater in the fridge, powered by any PSU you can trigger through connecting a PIN to ground (like any ATX-PSU) Electric CO2 Valve (Optional, but required if you're goal is to make the BEST) DOCUMENTATION IN PROGRESS, CODE WORKS.
Current version is 1.0 Everything works, and the logic is ROCK SOLID. I even included safety precautions, for example, if the heater or the CO2 runs for longer than 120seconds (2minutes) it will turn them off once. They will get turned back on if they need to. This is just so that if they are turned on, and a sensor fails/disconnects, the system will turn them off eventually.
###TL:DR The code is definitely not perfect, but it works.###
IMPORTANT NOTES:
Update: you probably don't need to use my edited library, it was a different issue and I fixed it, the problem was: you can't use esp32wifi library together with the normal wifi library. so I just kicked the esp32wifi library out, libraries are bloat anyways.
Why this license? I chose the GNU License because I like Open Source, and I don't have a problem with people making money from my work. BUT, your product will also need to be Open Source.