Clothes dryer that monitors temperature

Submitted by Calvin on

Hi

I'm required to design a controller for a clothes dryer that monitors temperature, humidity and time.
The operational humidity range is 10% to 90% to ensure the clothes are dry enough.
The temperature must be adjustable for 0°C, 25°C and 50°C to allow the user to set
the desired temperature.
The timer must be adjustable for a minimum of 1 minute, and up to the maximum
amount of time that can be reached by a 4-loop nested loop delay. Determine and
report the equation and maximum time. This setting will allow the user to set the time
after which the dryer must switch off.
If any of the ranges are exceeded, the dryer must switch off.