Let you teach, you play games with the worst class?

"Of course, the final color will definitely be different from the serious circuit board."

"But the effect is the same."

"So, the circuit boards we have been using are also caused by corrosion?" Wang Bo threw away the hydrochloric acid in his hand.

Wang Yu nodded.

Then he pointed to the instruction manual:

"Although the circuit in the manual is only represented by a few lines, it can also show that we need to draw the circuit on the copper."

"Then try to save the line and form an effective pathway, only then the whole handle can work."

"So, the biggest problem right now is the drawing of the lines, and the retention."

Speaking of this, Wang Yu paused for a while, and sorted out his thoughts:

"There are a few points to pay attention to when drawing the circuit. One is the power supply. We just saw the presence of a battery. The other is the triggering of each point and the connection with Bluetooth."

"Finally, there are calculations of various currents and resistances, which need to be considered."

"It's not that hard."

"But the lines are reserved. To be honest, I don't have any good solution. If you use hydrochloric acid to corrode one by one, it is easy to make mistakes."

"The number of these copper plates is not enough for us to try and make mistakes a few times."

After all, Wang Yu waited for the answer from others.

In the current time, he can only sort out these things.

And just these few things need to be done by the whole Class Nine.

At least in the drawing of the circuit, he probably can only set a general direction.

As for the specific button details, he, who has never played games, really can't control it.

After he finished speaking, the minds of everyone in Class Nine began to spin rapidly.

As long as the initial goal is clarified, all that remains is to achieve this goal.

Soon, someone proposed to preserve the circuit:

"Since the circuit is corroded, don't we just need to leave a part of the copper on the copper plate as a conductor? We can even use the remaining copper as a circuit."

"Then the question is again, how can you ensure that the remaining copper is not corroded?" Li Qi asked.

"It's simple~" The student frowned: "As long as we cover the copper in advance to prevent it from contacting with hydrochloric acid, it will be fine?"

"Can't we find something that is not corroded by hydrochloric acid?"

"You mean, You Yumo?!" Li Cheng was startled, and then his eyes lit up.

"That's right!" The classmate nodded: "Is there anything more durable than this thing?"

"We corroded this thing a lot at the time!"

"This time, as long as the concentration is high enough to completely cover the copper plate and form a circuit, isn't it over?"

"In other words, we can use Yuyu ink as real ink to draw a circuit diagram on the copper plate, and then soak it in hydrochloric acid. After the other useless copper surfaces are corroded, we can take out the copper plate and remove the ink. ?”

One word awakened the dreamer, and when all the details of this method were dragged out, everyone in Class Nine felt that it was feasible.

Originally, the role of the circuit board is to form a fixed circuit, as long as they can achieve this goal.

Be rough, be rough.

Rub it by hand, do you still want to demand industrial quality? !

After thinking about all this, Class Nine immediately started to act, and a group of people ran to the place where Yuyu was stored, preparing to invite Brother Yuyu to die.

By the way, today's lunch was decided.

The remaining part immediately started to take out the paper and draw the circuit.

At the same time, start to calculate the current that can be generated in each line, and what kind of resistance needs to be used.

In an instant, Class Nine once again completed the division of labor tacitly.

Those who are familiar with the road began to deal with new issues.

......

However, circuits are fundamentally different from shipbuilding after all.

Wait until Class Jiu draws a complete circuit diagram that has been calculated and verified.

The time has come to three o'clock in the afternoon.

If it wasn't for drinking a bowl of ginger soup during lunch at noon and not going out in the restaurant.

They feel that they may have a cold by now.

But it's worth it for Class Nine.

When they successfully drew this circuit, the sense of accomplishment was stronger than before, even comparable to the sense of accomplishment of shipbuilding.

Although the difficulty of the two is not the same, the process is not the same.

But rubbing the circuit board by hand proved one thing to them.

For them now, not only can the combination of mathematics and physics be seamlessly connected, but also the combination of physics and chemistry can be easily grasped.

After having such an experience, they can clearly feel that their abilities have made another qualitative leap.

Especially in calculating individual currents and resistances.

They don't know how many difficulties they have encountered, and they don't even have an accurate understanding of how much current should be in each place.

If it wasn't for the manual provided by Mr. Ren, there is a detailed description of this aspect.

They are afraid that they are still struggling.

No way, the necessary conditions are really not sufficient.

But fortunately, their teacher has obviously taken this into consideration.

This allows them to draw the circuit board in a kind of problem-solving nature.

But it is different from doing the questions, because it involves practical problems, after making mistakes, they can always verify through calculations, and clearly know which step is wrong.

After such a long time, some physical and chemical formulas that I thought were unfamiliar have been completely consolidated.

It makes them feel amazing.

At first, I hated my teacher's way of changing the soup without changing the medicine.

In the end, the sense of accomplishment still made them laugh out loud.

"Aren't you cheap... we..." Wang Bo laughed at himself silently.

It caused the people around to roll their eyes: "What are you talking about, we are clearly doing our duty as a student, how can we talk?!"

"So, our duty is ultimately to play games?" Xia Yue covered her mouth and smirked.

Class Nine rolled their eyes again.

This pair is hopeless!

"Okay, okay, don't bb, we have finished drawing the circuit now, and we still need to print it on the copper plate and corrode it." Ah Wei said at the right time: "After corroding, we need to install and debug, how can it be so simple? ~"

After talking, Awei took the drawn circuit diagram, made some backups, pasted it on the copper plate, and soaked it in hydrochloric acid.

After about ten minutes, the entire copper plate showed a green color.

Ah Wei pinched it out with clips and dried it.

Afterwards, the paper and ink stains were cleaned up, and the yellow line was still underneath.

After seeing these complete routes, the members of class nine let out a long sigh of relief.

The most critical step is completed.

"Okay, the rest of the work is steady, let's weld the resistance!"

"Which one of you can do it?"

After a while, Zheng Chen raised his hand and took over the job.

As a player who can draw in the waves, Class Nine really couldn't find a more suitable candidate.

But not long after getting started, Zheng Chen began to regret it.

It's not that electric welding is so difficult, as long as you have a steady hand and a little care, there won't be any problems with this thing.

The main reason is that my classmates are too good at bb.

"Hey hey, you're on the wrong side! Go a little to the left!"

"Aren't your solder joints a little too big? It looks asymmetrical!"

"No, no, no, your craftsmanship is too rough, and you haven't shown the meticulousness of our ninth class."

"Brother, don't say you're from Class Nine when you go out, we can't afford to lose this guy~"

Words like these kept appearing in Zheng Chen's work.

To put it bluntly, the students have a sense of participation.

But actually?

Isn't it just standing and talking without back pain? !

In the end, Zheng Chen raised his head, held the welding torch in his hand, glanced coldly at the surrounding students, and said a deafening sentence:

"You can do it, come on!"

"It's bb~"

In the end, in front of Zheng Chen's presenting the facts and reasoning, everyone in Class Nine sensibly gave up.

After another hour or so passed, the circuit board was finally soldered and the cables were connected.

Although a few pieces were used for practice during the period, the result was good.

The moment when everyone connects this hard-won controller to ps5 with bluetooth.

There was another exclamation on the deck.

Then there was the sound of scrambling.

Although the handle still lacks many parts, there is no gravity sensor or vibration feedback.

But anyway, it can play!

I wasted a lot of energy, isn't it just for this moment!

On the side, Zhang Ting, who had been watching Class Nine, decided to give Class Nine a day off.

Let them have a good experience of the joy of success, and let them recover their bodies by the way.

Anyway, there is no rush for this day.

After deciding on this point, Zhang Ting also joined in the activity of scrambling for the controller.

And immediately formed a superior suppression and took the lead.

......

And the captain's room.

Hearing the shouts from the deck, Ren Yan smiled calmly.

I feel more or less relieved in my heart.

After such a long time, Class Nine can finally read most of the subjects.

Only foreign languages ​​are left.

Thinking about this, Ren Yan decided to cover her with a quilt and fall asleep to the noise of Class Nine playing...

......

In the next few days, Class Nine calmed down for a rare moment...

It also returned to a relatively stable daily life.

Except for daily routine checks, they basically just play games in the activity area inside the hull.