Date: April 9, 2016
The blue thingy is the card. There are two sensors here, one is the proximity sensor, to sense the card, and the colour sensor to sense it is the correct card (“Colour Card”). Once it is correct, the door/gate will open. A message will be displayed “Welcome Home!”
A kid’s childhood should not be only education, school work, tuitions. It should be this sort of things that inspire them. Make them feel proud producing it. Make them to be creativity. It is this sort of different experience that make up a person. 🙂
