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Week 2

The objective of the second week


During week 2, the main objective was integrating every vibration sensor on the circuit board. More specifically, through using the application developed last week on the mobile phone, the vibration of the vibration sensor on the circuit board can be controlled accurately. In addition, a portable armor made by paper, which can be installed circuit boards, is made to feel the vibration.

The second process of the second project

The first step solve the problem about which method was chosen to connect the vibration with pins. On the one hand, electrical circuit can be used as the link. On the other hand, the tin wire which can be welded on the circuit board by the welding torch is also a favourable choice.
The next step is using the welding torch to make a link between the vibration sensor with pins. At the beginning, because we have 12 vibration sensors divided into 6 parts totally, we plan to install two vibration sensors every circuit board. Unfortunately, because of the lack of the experience to weld the electrical component, three vibration sensor was broken. As a result, we decide to install one vibration sensor every circuit board. The process of the weld is shown in figure 1. 
Figure 1: The process of the weld
The achievement of the weld is presented in figure 2 as following.
Figure 2: The achievement of the weld

Conclusion of the second week

During week 2, We first improved the vibration sensor, and the team members soldered it to the board. In addition to the project we need other instruments such as welding torch, tin wire, electric board. The purpose is to facilitate the placement of the vibration sensor in various parts of the body, and once the injury is received in the game, the body can feel the vibration of each part at the same time, increasing the vibration intensity. At the same time, in order to facilitate the VR game experience, our team made a portable armor, namely breastplate, carapace, two wrist armor, two leg armor, corresponding to five vibration sensors.

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