Lab Time：9/22/2019
Partner：Andrew Xie
Components Used：
- 1 * USB A to B cable
- 1 * breadboard
- 1 * buzzer
- 1* Ultrasonic ranger
- 1* Infrared Distance Sensor
- 1 * 10K ohm Resistor
- 1 * Arduino Uno
Lab Content:
- Ultrasonic Ranger Circuit
- Infrared Distance Sensor Circuit
Detailed Description:
Infrared Distance Sensor Circuit
We used Infrared Distance Sensor to do the first project, but compared with the next ultrasound, the accuracy is not very accurate. Perhaps infrared radiation received more interference, leading to data changes.
Ultrasonic Ranger Circuit
Next, the focus of our work is on ultrasound, because we found through experiments that the accuracy of ultrasound is higher, and can measure more distances. With the change of map, we connect buzzer into the circuit. As the distance increases, the sound of buzzer becomes smaller and smaller.
It is worth mentioning that there are four ports of ultrasonic electronic components, and the two ports in the middle can not be separated for transmitting ultrasound and recovering echoes.
Question 1:
I used the Ultrasonic Ranger and Infrared Distance Sensor as assembled objects. For application in reality, I think it should mostly be used somewhere the distance need to be measured, like an automatically-controlled door or velocimeter.
Question 2:
Because just like recipe and tutorial, the code show the computer how to achieve one goal by teaching them with an understandable language. Besides, the code, as well as recipe and tutorial, highly require for strictness. Doing one step wrong could result in a fatal error or deviation.
Question 3:
Nowadays, we seems to get all kinds of information from the internet and our computers. It could even been concluded that we spend a greater amount of time on computer than anything. So the computer technology indeed plays a utterly important role in our lives and impacts us implicitly.