As for what was happening on the director's side, they knew nothing about it.
So at this time, they are still a little confused.
Fortunately, this confusion did not last long.
While everyone was sorting and analyzing the materials, they still found a small note.
It was an instruction manual that introduced the functions of each part of the handle.
At first glance, you can tell it was hand-painted by our own teacher, and it exudes a sense of familiarity.
Moreover, the introduction and completion conditions of each function are too detailed.
So much so that even Wang Yu, a top student who is not very familiar with the handle, can understand it clearly.
With the help of this instruction manual, Class 9 immediately began analysis.
The construction at hand is divided into two steps in total.
The first step is to install the overall circuit, which includes not only resistors and buttons, but also Bluetooth connections.
The second step is to assemble the shell.
Class 9 is not very worried about this step.
The materials provided by their teacher already included a complete shell, and all they needed to do was polish it by hand.
The difficulty lies in the first step.
Because they couldn't find the circuit board for a long time.
"It seems like Teacher Ren really wants us to rub these copper coins with our hands..." Li Cheng helplessly picked up a few copper coins and shook them in his hands.
Xu Kai asked curiously:
"Are you sure that copper plates can be used to make circuit boards? Aren't those things always green?"
"But your piece is obviously the wrong color."
After that, Wang Yu took over the conversation:
"When the copper plate is corroded with hydrochloric acid, it will form a verdigris rust, which will appear green."
“Of course the final color will definitely be different from the genuine circuit board.”
“But the effect is the same.”
"So, the circuit boards we have been using are also caused by corrosion?" Wang Bo tossed the hydrochloric acid in his hand.
Wang Yu nodded.
Then he pointed to the instruction manual:
"Although the circuit in the manual is represented by only a few lines, this also shows that we need to draw the circuit on the copper."
"Then we try to preserve the circuit and form an effective pathway, so that the entire handle can operate."
“So the biggest issue right now is the drawing of the line, and its preservation.”
Wang Yu paused for a moment and sorted out his thoughts:
"When drawing a line, there are a few things to pay attention to. One is the power supply. We just saw the existence of a battery. The second is the connection between the trigger and Bluetooth at each point."
"Finally, there are calculations of various currents and resistances, which all need to be considered."
“It’s not that difficult.”
"But to be honest, I don't have any good way to preserve the lines. If I use hydrochloric acid to corrode them one by one, it will easily cause leaks."
"The number of copper coins is not enough for us to make a few attempts."
After saying that, Wang Yu waited for others' answers.
At present, these are the only things he can sort out during this period of time.
And these few things require the entire Class 9 to do it themselves.
At least when it comes to drawing circuits, he can probably only set a general direction.
As he has never played games, he has no idea about the specific details of the buttons.
After he said that, everyone in Class 9 started thinking rapidly.
As long as the initial goal is clear, all that remains is to achieve it.
Soon, someone proposed to keep the circuit:
"Since the circuit is made by corrosion, can't we just leave a part of the copper on the copper plate to act as a conductor? We can even use the copper left over from corrosion as a circuit."
"Then the question arises again, how can you ensure that the remaining copper will not be corroded?" Li Qi asked.
"It's simple~" The student raised his eyebrows: "As long as we cover the copper in advance to prevent it from coming into contact with hydrochloric acid, right?"
"We can't find something that won't be corroded by hydrochloric acid?"
"You mean, You Yumo?!" Li Cheng was shocked, and then his eyes lit up.
"That's right!" The classmate nodded: "Is there anything that can last longer than this thing?"
"We corrupted this thing a lot back then!"
"This time, as long as the concentration is high enough to completely cover the copper plate and form a circuit, won't that be enough?"
"In other words, we can use the fish ink as real ink to draw a circuit diagram on the copper plate, and then soak it in hydrochloric acid. After the useless copper surface is corroded, we can take out the copper plate and remove the ink, right?"
This statement woke people up from their dream. When all the details of this method were dragged out, everyone in Class 9 felt that it was feasible.
Originally, the function of a circuit board is to form a fixed circuit, as long as they can achieve this goal.
It's okay to be a little rough.
Rub it yourself, and you still expect industrial quality? !
After figuring all this out, Class 9 immediately took action. A group of people ran to the place where You Yu was stored, ready to invite Brother You Yu to die.
By the way, we also decided on today's lunch.
The rest immediately took out paper and started drawing routes.
At the same time, start calculating the current that can be generated in each circuit and what kind of resistance is needed.
In an instant, Class 9 once again completed the division of labor in tacit understanding.
I started to deal with the new topic with ease.
......
However, circuits are fundamentally different from shipbuilding.
Wait until Class 9 draws a complete and computationally verified circuit diagram.
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