Question 1:
We intended to build a device with an Infrared Distance Sensor and a LED Light which act together to realize the function that when the distance between the thing and the sensor is over 20 cm, the LED will lighten up.
During the steps we built, we followed the instruction on the website to build the circuit and copy the code from the website. The circuit can be seen as followed.
This device can be installed in the handcuff of the criminal and be used to warn the police that the criminal may get away from the handcuff and threaten the policeman.
Attached is our device.
Question 2:
I think we cannot do things without others’ help, and of course, we couldn’t build all the code just by ourselves. Firstly, there is no need to do the work that other people had done and what we need to do is just understand the code. Secondly, coding is just like building Legos: we can combine others’ work together to realize our own purpose. In conclusion, comparing coding to recipe is a good example.
Question 3:
The computer will influence in the way we search for the information. Before the appearance of computer and Internet, when it comes to Information,People will go to the library immediately for it. But now people will look for it on the Internet. Moreover, since the information on the internet is so massive and easy to find, we tend to feel that we know or we can know almost everything and connected to the world every minute. However, this phenomenon also has its disadvantage: such as nowadays people cannot stay away for eletronic devices and are not willing to think out of things of themselves，which is also needed to be seriously considered.