Recitation 3: Sensors
I.Moistrue Sensors:
components:
1.Moistrue sensor
2.Arduino board
3.wires
Process:
We connected all the wires and it works. That one is pretty easy.
II. Infrared Distance Sensor:
Components:
1.Arduino Board
2.Infrared Distance Sensor
3.Wires
Process:
This circuit is similar to last one and we just simply changed the code and the component. But actually it didn’t work and we could not figure out the reason of it. So we turned to the fellow. He told us that the sensor was broken. Hence we changed another one and made it.
III.Vibration Sensor:
Components:
1.Breadboard
2.Arduino Board
3.1 Megohm Resistor
4.LED Light
5.Wires
Process:
This is the first circuit that we built in last recitation actually. It was more complicated that the two above. We took some time to learn the circuit and decided to use breadboard because there was no more analog-in pins for us connect the sensor and resistor. But luckily, the process was quite smooth, we didn’t encounter any difficulties and problems.
Question1:
I chose to build the circuits of vibration sensor, distance sensor and moistrue sensor. I want to assemble all the real things in the real world and the program, digital technologies. For example, I want to assemble the moistrue with program so that I can transefer the air condition to number to be stored in computer so that we can use those data for other practice in different fields. For vibration sensors combination, many residences in differen community will use it for a new form of reminder which is similar to what we use for door bell. When someone knock the door, LED will be lighted up so people can see. For moistrue sensor, I think many agricultural companies will use it for detecting plants. For distance sensor, it can be used in many different way. For instance, automatic door and sensor faucet.
Question2:
This question is very interesting. Actually for me, code is a kind of guidance. Because from code, I can know which pin I need to connect and how can I connect the whole circuit. Sometimes I can also get to know the aim of the circuit so that I can directly know how to connect the circuit or even come up with a better way to connect the circuits. These above are the reasons why I think code is often compared to following a recipe or tutorial.
Question3:
I think computers change human behaviour almost in all the way. First, conputers change our way to work. In the past, we wrote and talked with others to communicate, to work. But with the development of computer, we finish almost all the work through computer. Second, computers change the way we entertain. We can watch video on Youtube or Netflix. We can listen music online and also we can also play video games on computer. That is totally different from what human had before. Besides, it changes how we exchange and how we purchase things. There are many different aspects changed by computers.