Mrs. sole is blind who live in a four roomed flat. This lady sometimes loses her belongings as she cannot see when someone enters the house. She also wants her house to be automatically lit during the night and off during the day. you are asked to help her by designing and making a circuit that will: 1. tell her when somebody enters the house. 2. switch lights automatically on when night falls and off when sun rises.

1. INVESTIGATE 1.1 Do some research about the problem and collect facts and information about the above scenario. (5)

1.2 DESIGN BRIEF:

1.2.1 Identify the problem. (2)

1.2.2 Analyse the problem, need or want. (3)

1.3 Investigate any existing that have similar function/purpose. (5)

1.4 Evaluate the identified product on 1.3 by give 3 advantages and 3 disadvantages). (6)
- You will need to look carefully at the context and background of the problem.

1.5 Describe 3 different possible solutions to the identified problem. (9)

[ TOTAL = 30]​