Siheyuan: The opening earthquake of stealing and replacing pillars

In the afternoon, the three of them came to Lingyin Temple again. He Yuzhu didn't know much about this ancient temple, but from the people coming and going, he could tell that the culture it inherited could stand firm even in turbulent times. Even though there is no incense now, the heavy vicissitudes can make people feel the history and truth it has carried for thousands of years.

Sipping on popsicles, drinking soda, chatting while walking, walking and chatting, people in this era are very talkative, whether men or women, there are always endless topics to talk about. It is not like the later generations, where everyone has a mobile phone to kill time in the day. How simple it is.

Mobile phones, computers, when he thought of this, He Yuzhu felt that he was out of place. There was no way. Even if he adapted to this era, the mechanical nature of his thinking always reminded him that he was a veteran. Veterans brought modern fungi to infect the people around them. For example, Li Zhuyun learned a lot of spoken language and movements that did not belong to this era from He Yuzhu in less than a day.

Until the sun sets, the three of them revisited Nanping Evening Bell. He Yuzhu used the last roll of film to take a selfie, and the day came to an end.

Back at the hotel, the couple fell on the bed and didn't want to move anymore. They had walked tens of thousands of steps that day, climbing mountains and wading through water, and their legs were sore from exhaustion.

"Yuzhui, can we not go to Zhonghai tomorrow?" Zhu Lin muttered while lying on the bed hugging the pillow. She really had no strength left.

He Yuzhu sat up and rubbed her legs, chuckling, "You can't stand it? You made a plan just now. If you keep going like this, you won't be able to finish it by next year!"

"Oh~" Zhu Lin was immediately unhappy when her shortcomings were exposed. She kicked her legs and started to throw a tantrum: "Plans can't keep up with changes. It's not like I won't go. I can go a day later!"

"Okay, okay, I'll just do whatever you want!"

After saying that, He Yuzhu went to take a shower. When he came out, he was naked, and his strong muscles showed his masculinity!

Zhu Lin quietly opened her eyes a little, took another look, and immediately covered her face with shame: "Can't you just put on some clothes?"

"Haha, we are already an old married couple, why would you be embarrassed?"

"Go to hell~" Zhu Lin grabbed the bed sheet and covered herself with it, hiding inside with a red face and laughing.

He Yuzhu gave a wicked grin, took a stack of toilet paper and placed it on the bedside, and patted it gently. Zhu Lin heard the noise and stuck half of her head out, but when she saw the toilet paper on the bedside, she immediately understood something. Her face turned red like a big apple, and her expression was complicated, as if she wanted to refuse but also to welcome. It was so tempting!

"Hehe~"

it is more than words……

The next day it started to drizzle outside and a cool breeze blew into the house, taking away the last bit of stuffiness from yesterday.

He Yuzhu's biological clock also woke up on time at seven o'clock. He looked at the watch and found that it was still very early. He smoothed his wife's hair, then got up quietly to wash.

When he came back after buying breakfast, his wife was still sleepy, so she sat at the table alone and started to study it. She drew it out according to the drawings in the system, and then marked various marks. Although it was just a small motor, the circuit diagram involved could fill up several pages of paper. After finishing all this, she bought some small parts from the mall, such as Hall elements, small resistors, small capacitors, circuit boards, power switches, etc., which were used to make control circuits.

After completing the preparations, He Yuzhu quickly disassembled the motor. This motor is a brushed motor, and the reason for disassembling it is to understand its principle. After all, it is his first time doing it!

Then I classified the parts and put away the useless ones. Then I bought an imported brushless motor from the mall. After comparing them, I recorded the differences between the two and started the modification. I started by winding the rotor coil, calculating as I went along. Because the wire harnesses were of different thicknesses and the power could not be too large, I had to be precise.

After winding the coil, assemble it and connect the power through the inverter. The rotor lights up immediately and can rotate, but it is not smooth when starting. This is because the control circuit is not connected. Then weld the Hall element. This thing is relatively large. After all, the technology is not mature yet, which is understandable.

After making the wires, He Yuzhu began to make the control circuit. At that time, most of the circuit boards were prefabricated. They were not the green circuit boards commonly seen in later generations, but brown ones covered with densely packed small holes. This was to facilitate the installation of electronic components. Once the corresponding electronic components were arranged, they could be tinned from the back, and the circuit was also a tin path.

In fact, there are advantages to doing this, that is, it is easy to repair. There is no after-sales service now. Take a radio for example. If it is broken, it is broken. Unless you can fix it yourself, it can only be used as a decoration. This is why people nowadays more or less know how to repair semiconductors. The smart ones can even make their own, such as a crystal radio. If you can't afford it, you can find someone to make a simple one, which can save a lot of money!

The control circuit is also very simple. Use a few capacitors to make a rectifier bridge, connect a Hall element with a transistor, and make a power switch. That's about it. But at this moment, Zhu Lin was awakened by the smell of soldering.

"What are you doing!"

Zhu Lin's voice sounded behind him, and He Yuzhu raised his head and said, "We are researching it!"

"You really did it!" Zhu Lin smiled as she lay on He Yuzhu's shoulder.

"Of course, don't look at who your husband is!"

Zhu Lin was also proud and couldn't help but give Director He a kiss on the face as a reward. Then she pointed at the circuit board and asked, "What is this? It looks like a little bug!"

"This is a diode, this is a triode, and this is a light-emitting diode..."

"What the hell? I don't understand a word of it!" Zhu Lin pouted and went to wash her face and brush her teeth.

"If you don't understand, you can learn. Hey, don't leave~"

"Not learn!"

"..."