1. Working principle of computer mouseSix groups of infrared sensors are installed around the computer mouse to sense the left, left front, front, right front and ri...

1% is unwilling to be mediocre 1% is the proportion of inspiration 1% is unique 1% is the dividing line from good to great When it comes to peripheral keyboards, many people may think of the old Razer and Logitech first. Of course, many excellent domestic peripheral brands have emerged in recent years, so if we want to buy a keyboard and mouse, we still have many choices. For many people, the frequency of daily use of the keyboard and mouse may be second only to the mobile phone. No matter work or game, a good keyboard and mouse can completely affect our mood. If you want to say which brand of keyboard is the best, and which color of the key shaft is the most convenient, I know that many friends here will have their own answers. But if you want to ask me which brand of keyboard is exquisite and looks good. I will definitely recommend the brand LOFREE to you. The first time I came into contact with this brand was their "Xiaoqiao" 68-key mechanical keyboard (left), which is almost brand new after a year of use. At 618 this year, because I often need to use two computers to work at the same time, I bought this 68-key keyboard (right) with a cement gray base "Summer Invasion Project" keycap. As a long-term user, I am very familiar with LOFREE's keyboards. My love for this brand begins with its appearance and is loyal to its quality. It is no exaggeration to say that LOFREE is a "heterogeneous" of domestic peripheral keyboard circles, because it not only puts a lot of effort into the use experience, but also creates a precedent for DIY keyboard appearance. In terms of product appearance alone, it can be said that not only domestic brands are not capable of fighting, but even other non-domestic old brands are also powerless. Among all the current keyboard products of LOFREE, the one with the highest appearance or the most expensive price is the 1% transparent mechanical keyboard. After entering my complex psychological activities as a loyal fan, I still bought it for myself on the day of Qixi Festival. In fact, I thought about buying it before, but I just suffered from a lack of stock. As for the packaging accessories, I won’t go into too much detail here, let’s look directly at the keyboard itself. The 1% transparent mechanical keyboard, as the name suggests, has no word games and no wrong version. It is indeed transparent! The reason for leaving a "1%" may be because the base part is not completely transparent. But this doesn't affect the feeling of "Fucking X" when everyone sees it for the first time. The 1% transparent mechanical keyboard uses imported high-transparency PC shells, and the keycaps are treated with pad printing + UV technology. It feels like the characters are printed on the inside of the keycap, so don't worry about the wear and tear of the characters on the keycap after using it for a long time. The touch of the entire keycap is "silky". There is a saying that this transparent keycap is definitely the only one on the keyboard ring, and the crystal clear effect is like ice cubes. Just seeing it in summer feels like typing on an "ice cube". The silky touch and translucent appearance changed our impression that the keyboard is either black or white. Different from the previous Xiao Qiao, this 1% transparent mechanical keyboard is equipped with a keyboard light. In fact, through the transparent keycap, you can already vaguely see the lamp beads below. You can compare the effect of the power keyboard light on the left and the light off on the right. When the keyboard light is on, the crystal clear effect of the transparent keycap is more obvious. I took two photos of the 1% transparent mechanical keyboard lighted up in the dark. Does it look more like sparkling crystals? 1% dual-mode mechanical keyboard with 7 different backlight effects. Press Fn+Backspace to switch the lighting effect mode, press Fn+up and down keys to adjust the brightness of the overall backlight, press Fn+left and right keys to adjust the frequency of light flashing. The bottom shell of the 1% transparent mechanical keyboard is made of high-quality ABS material, and a texture effect of aluminum alloy is created through high-gloss plating process. The high-transparency PC surface shell wraps the ABS material bottom shell, and the crystal bright effect is further upgraded. There are various well-designed texts and decorations around the base, which further fills up the 1% transparent mechanical keyboard! The two models I purchased before are powered by AAA batteries, but this time the 1% transparent mechanical keyboard is powered by a built-in battery. So you can see a Type-C charging interface. 2000 mAh built-in battery, the official data can be used for 60 days. Of course, the specific use time depends on the daily use of the keyboard, and I will actually feel its battery life later. The 1% transparent mechanical keyboard supports wired and Bluetooth dual-mode connections, and mobile phones, tablets, and computers all support connection and use. Windows, Apple, and Android systems can also be connected, and the connection operation is also very simple, just turn the switch to the corresponding mode that needs to be connected. The 1% transparent mechanical keyboard uses the Kaihua MX jellyfish switch body. I took a look at it. If you look at the price of the switch body alone, it has exceeded 600 oceans. From my actual experience, the 1% transparent mechanical keyboard’s tap feedback is not as strong as my previous two small warps. The overall feeling is more silky and soft, especially when typing at night, it will not make a loud noise. Typing for a long time will also be easier than the other two Xiaoqiao. Of course, these are just my personal subjective experience. How can the actual feedback be possible? You have to experience it yourself! In order to let everyone see the various details of the 1% transparent mechanical keyboard more carefully, I have put a lot of real pictures above. I know that this unique fully transparent design may not be everyone's favorite, some people like it and some people don't like it so much. Just like the saying in Luofei's advertising slogan: "Sometimes doing something you like is more passionate than sticking to the rules." The 1% transparent mechanical keyboard is obviously a product that does not stick to the rules. Of course, people who like it will most likely be a passionate and thoughtful person who is not so conformist. I don’t know how much you like this 1% transparent mechanical keyboard after seeing the pictures I shared. 10 points out of 10, give me your answer in the comment area!

Foreword: The keyboard I am currently using is the mechanical keyboard of Pennefather. I am satisfied with the shaft body of Pennefather, but I don’t like its original keycaps. I recently saw that Lofree Luofei’s new theme keycaps. I plan to replace the original Rapoo keycaps, and take a look at this new Lofree 131-key OEM themed keycap. ’ and ‘Alice in Wonderland. The new theme keycap launched by Luofei this time is equipped with a total of 131 keys, which can satisfy most keyboards on the market, whether it is a small size of 61 keys or a full size of 108 keys, it can be better compatible, such as My Rapoo keyboard has 104 keys, and you can see that the two keycaps are installed perfectly. This Alice in Wonderland theme belongs to a more dreamy style. Its design inspiration comes from the fact that there is a curious girl living in everyone's heart. You can see that the symbols and painting styles on the keycaps are biased towards fairy tale themes, while This dreamy purple color also looks more mysterious, and the table top placed in front of the computer desk is also eye-catching. The theme of the shipboard panda is biased towards people who like military themes. After all, most boys are military fans. This theme was actually born in 2019. The content on the keycaps is combined with pandas, aircraft carriers, and flight terms. Together, it feels very cool, and it is an indispensable tableware. The keycaps of some keyboards on the market will become greasy after a period of use, and need to be cleaned frequently. The main reason is the material problem of ABS, and the theme keycaps launched by Lofree are made of high-quality materials. PBT material, this material not only feels good, but also resists oil stains very well. I don’t know if you have ever encountered your keyboard’s characters fade after using it for a period of time. Anyway, I have encountered it. Lofree Luofei has adopted a five-sided heat-up process, and you can see the color of the pattern on its keycap. It is very clear, and this process also achieves durable and wear-resistant characteristics. In addition to the difference in the material of the keycap, the height design of the keycap is also particular. Lofree also has many kinds of keycaps. It has many types of keycaps. In fact, the difference is the difference in the height and inclination of the keycaps. , the one launched this time belongs to the OEM type, and the characteristic of this type is that it feels more comfortable. Summarize: The Lofree 131-key OEM theme keycap launched this time is a kind of high compatibility. It is also a general-purpose keycap. Whether it is Lofree's own keyboard or other brand keyboards, this keycap can It has very good compatibility. If you are not satisfied with your own keycap design, then I suggest you change to a set of Lofree 131-key OEM theme keycaps.

A few days ago, I saw news on the website that the single template of Jingzao JZ990 is priced at 199 yuan. Friends who are familiar with mechanical keyboards should all know that the foundation of this keyboard is the well-received cheap donkey RS2, and the daily price is 399 yuan. The price of this single-mode version is only 199 yuan, and the shell and structure are the same, so what is the difference between this half-price keyboard and the standard three-mode version JZ990, which is the cheap ass RS2? So I bought one, and I will share my experience with you. List a table, should be able to more clearly see the similarities and differences between the two. To put it simply, the exposed parts are almost the same, except that the volume knob part of the rs2 will have a metal texture ring, while the single-mode 990 is a rhubarb, and the rest are basically the same in appearance. Then the interior is almost different except for the PCB. The shaft part will be mentioned later, and the disassembly of the filling part will be mentioned later. It is clear that hot-swapping and three-mode are not supported. At the beginning of the cheap donkey rs2, the positioning board was made of PC material, and now it seems that it has been fully upgraded to a gold-plated Fr-4 glass fiber positioning board, so JZ990 has also become the cheapest glass fiber positioning board. The keyboard is produced, but the surface is not paved with gold. Before dismantling, let me say that like all keychron and cheap donkey keyboards, the front height of rs2 is very high. The purpose of this is that there is enough space inside to arrange the structure. At the same time, because the lines are relatively simple, it will look more obvious. The solution is to add a hand rest or open the foot support to the second stage. I just use the foot support and I don’t feel any discomfort. In addition, the 2.4G receiver storage compartment at the bottom is even left. In terms of internal structure, it looks like this when disassembled. The bottom shell is densely covered with reinforcing ribs. The rs2 also has no backing cotton, and the single-mode JZ990 naturally does not have it. The solder joints are handled well, and it should be done by machines. Suddenly, I remembered the keyboard evaluation in the early days. There is nothing to say. There is also a special chip at the U port, and there is actually a Chinese label: KB603-2 wired switch. Nine such PE foam strips are placed on the upper and lower covers to form a cushioning structure. The foam strips at the bottom are easy to fall out after being removed. The hardness of the foam is low and it feels too soft. The fiberglass version is not covered with gold, and the sandwich cotton and under-shaft pads for noise reduction are also directly omitted. But it can be noticed that the distance between the lower PCB and the positioning board is very small. The standard switch of this keyboard is the Moon Shadow Yellow Switch. Note that some of the keychron series keyboards made in Beijing also have Phantom Yellow Switches, which are basically at the level of Jiadalong G Yellow Pro, and this Moon Shadow Huang is another type of shaft. The two have similar names but different qualities. Don't confuse them. The lowest price of Xianyu’s Yueyinghuang dismantling shaft last year was 30 yuan and 80 pieces, so it’s probably more than 4 cents. But in fact, I think more than 4 cents is still a little bit expensive. First of all, let’s talk about the advantages. The smoothness of this switch is good. Indeed, the switches of many keyboards with the same price will have obvious astringent feeling, which is not the case with Moon Shadow Yellow. But I also obviously feel that this shaft is very cheap, the shaft is relatively wobbly, and it feels very light when pressed, a bit like the earlier Jiadalong red shaft or the Huannuo shaft more than a year ago, and the rebound feeling is average. The performance of the large keys is actually good, there is no obvious steel wire sound, and there is no sensuality. The performance of each large key is not bad, but it seems to lack a little bit of neat feeling when tapping. After a closer look, it should be a little bit of lubricating oil (note that oil is not grease, and has stronger fluidity), which is not obvious, so the quality of the satellite shaft itself is not bad, but the lubrication is not enough, resulting in a slight texture of the big key. Worse. The damping of the knob is good, but the card is relatively loose, and it will come off with a light pull, so be careful not to lose it. First of all, I have recommended the cheap donkey rs2 keyboard many times before. One is because it has a more reasonable arrangement and has a complete number area with 2U size 0 keys. The other reason is that its Gasket structure is very good. This keyboard has also been reflected. After pressing, the sinking is very obvious. The keycap is relatively thin, and the plastic of the shaft body feels thicker than it is. In addition, there is no sound-absorbing structure, so although the cavity sound is not obvious when typing, the sound performance after the shaft body hits the glass fiber positioning plate is also very sharp. , it doesn't sound good. But the overall input experience is still okay. After all, the smoothness of the shaft body is still there, so it is definitely not impossible to use it. If you haven't touched a good mechanical keyboard before, then it is absolutely acceptable. I've been using it for a while, and it seems to work fine. Compared with the cheap donkey rs2, Jingzao JZ990 can be said to be a simple configuration with only one body left. Although there are excellent Gasket structure and FR-4 fiberglass positioning board inside, the last stubbornness, but other materials are all Save if you can. As a 199 yuan single-mode keyboard, if it is just used, I think there is no problem. The arrangement and knobs are very practical. The retro appearance and wear-resistant PBT keycaps are also its advantages. However, I actually think it would be better to use a PC positioning board. The FR-4 itself is a bit harder. In the absence of cushioning and noise reduction configuration at the bottom, the PC can give a better feedback experience. Of course, another worry is the lifespan of Moon Shadow Yellow as a low-priced shaft body, but considering JD.com’s self-operated after-sales service for one year, it can be rest assured.

Keychron recently announced that it will bring a new member of the K Pro series low-axis mechanical keyboard-K1 Pro. It adopts 80% layout, TKL arrangement, has an ultra-thin body, and has customer-customized attributes. It is now officially on sale, providing three configuration options, and the initial price starts at 458 yuan. If you are interested, you can pay attention. K1 Pro supports Bluetooth 5.1, wired connection, white light/RGB version is optional, the body is made of anodized aluminum, built-in steel plate satellite switch, equipped with Jiadalong short switch 2.0, optional hot-swappable switch body, PBT keycap, Support QMK/VIA open source key change, and each component can be assembled by itself. In addition, it is compatible with Mac/Win dual systems, and can adapt to 3 devices at the same time to quickly switch through shortcut keys. It has a built-in 1550mAh capacity battery, and the specific battery life is not detailed. The specific specifications are as follows: Xiao Bian said : Low shaft design Users who have used Mac will get started faster, and because of the short shaft, there are fewer optional shafts.