we intend to make a greenhouse in a wooden box, at first, we will use
1 soil moisture sensor
1 PH sensor
1 water level sensor
1 external 12V DC power source
and 2 fans
Water pump and hose for self-watering, temperature and light sensor.
and 1 Bluetooth module
Due to the number of sensors, 150 ohm resistors, I'm afraid if the Arduino UNO is enough, I don't know if there's a way to extend the inputs.
We are starting to do it in Tinkercad, but first we are clearing up any project doubts.