Functions:

1. People don't have to touch the door to open it.

2. Able to scan body temperature.

3. Door will only open if the allowed body temperature is detected.

Limitation of our prototype:

1. Our prototype does not meet the temperature requirement because we are using the water temperature sensor instead of body temperature sensor.

2. Our prototype should be added with sound when the door opens so that blind people will know that they are allowed to enter or not.