I have 4 sensors take the information from ZIGBEE communication,
The better range soil moisture for the plants is 21% to 60% motor should start slowly running when the soil moisture at 40% ,I don’t know the analog values like the voltage or the current value. the ideal humidity for plants is around 50 to 70 percent. The motor start works when the humidity less than 60 %. When the. the ideal or optimal soil temperature for planting and growing most vegetables is 65° to 75°F (18°-24°C) for our project when the temperature high then 24°C the motor star slowly but when the temperature increase should the motor increase the speed,
And tank sensor The motor stop when the level of water less than 10% in the tank and give alarm. the speed of motor change by the condition above