Input

Potentiometers act the role of water tags, which refer to the degree of hot water used. Push-pull switch(drop shape) exchanges between 2 layers. and the other Push-pull switch(round angle rectangle) controls the motor to run backwards, lifts the liquid level back to the original level.

Output

Steppers respond to the (Hot water tag) pot controller. When turns on more hot water, the motor runs faster. The liquid level falls in a faster speed, vice versa.

Potential usage

Only measures the degree of hot water used now. For future developmnet, measures both hot and cold water as the energy used in shower. And also calculate the timing fot the shower.