We make a robot from a computer mouse. The secret of a computer mouse What can be done from old wireless mice

You constantly use a computer mouse (or, to put it "pretentiously" a mechanical manipulator that converts movement into a control signal), but have you ever thought about what you can do with a computer mouse? It turns out not so little. Select an object or copy it, move or delete it, open or close a file or folder, all and much more can be done with a computer mouse. That's what we'll talk about.
In this lesson, we will get acquainted with a computer mouse, learn some secrets of it, and also find out what you can do with the mouse on in the browser. You, using the mouse, can select a folder, file or some program and perform some actions, move around the desktop area, open a folder or run a program. You can copy or delete a word or an entire text.
Computer mice are ball, laser, wired, wireless. But the principle of operation is the same for everyone. When you move the mouse over the surface of your table, the cursor moves on the monitor screen, duplicating your actions. The main buttons needed to work with a computer mouse are only three. This is a left and right key and a scroll wheel (scroll English scroll). Using a computer mouse and additional keyboard buttons, you can significantly simplify and facilitate many operations on the desktop, when working in programs and in browsers. Let's get acquainted with some tricks of working with the mouse.

The simplest operation, which you probably already had to perform, is to select some text. To do this, simply put a vertical slash at the beginning of the text. It is also called in English pipe(in Russian you can safely pronounce "pipe") To do this, with the left mouse button, click at the beginning of the text and hold down the left mouse button and drag (without releasing the button) to the place where the desired text ends. But what if the length of the text exceeds the size of the page? The following combination will help you here. Put the cursor at the beginning of the text, hold down the key, on the keyboard, Shift and click the left mouse button, without releasing the key on the keyboard, go to the end of the desired text and press the left key again. All text is selected, you can perform further actions with it.

Copy and paste text.

You need to transfer part or all of the text to another location or folder. We already know how to select text. Now, on the selected text, right-click and in the context (drop-down) menu find "copy" and click on this item. All the necessary information is stored in your clipboard (Clipboard, if you don’t go into details, temporary storage where you store the files, folders, text you copied). Now find the place where you need to paste the copied, click on it with the right mouse button and in the drop-down menu, select "paste". These operations can be done in a different way. Select the one you want, then hold down the keyboard keys CTRL + C. Everything is copied. Choose the place where you want to paste the copied, put a slash (one click with the left mouse button) in the right place and press the CTRL + C keys. That's it - the text is inserted.

We change the scale.

Sometimes, when you open some site or page, you see that the font is very small. Not everyone, especially older people, have good eyesight and it is difficult for them to read such a font. It turns out that this can be fixed quite simply. To do this, hold down the CTRL key and scroll the mouse wheel forward or backward. Accordingly, the font size will increase or decrease.

Open link in a new tab.

You have already had to, while working on a page, go to another page or tab without closing the first one. In this case, you performed the following action: “Right-click on the link and in the menu that opens, select - Open page in a new window.” But the whole process can be simplified. Hold down the CTRL key and click on the link. That's it, the link will open in a new window.

Move with the right mouse button.

You already know how to move a folder or shortcut in the plane of the desktop. For those who don't know, let me know. Hold the selected object with the left mouse button and, without releasing, move it to the selected location. But it turns out that this operation can be performed with the help of the right button. The principle is the same. Right click and drag to the desired location. When you release the key, a menu will open where you will be asked about your next steps. Choose what you need.

Highlight a word or text.

If you need to select a word, then just move the mouse cursor over the desired word and double-click the left button. Is it possible to select the desired paragraph in this way? Certainly. Place the cursor again at the beginning of the text and click the left button three times. All the necessary paragraph is selected, you can perform further actions with it.

Third button.

Most users do not use the third mouse button. Few people know about its capabilities. And those nevertheless something she can. For example, when you open a browser page and click on the wheel, the cursor will change to a round one. Now it is possible, by moving the cursor in different directions, the movement of the page on the screen will also scroll in all directions, and the further the scroll pointer moves, the faster the page will scroll. Sometimes very handy when scrolling through pages with large text.

Here are some little tricks of the computer mouse. That's where we'll stop. Of course, the topic is much broader than it is stated, but throughout all subsequent lessons, we will return to this issue.

In the next lesson, we will get acquainted with the concept of keyboard shortcuts. These are combinations of two or more keys that can be pressed to perform tasks that usually require the use of a mouse or other pointing device. Keyboard shortcuts make working with your computer easier, saving you time and effort when working with Windows and other programs...

Until then, I say goodbye to you. As always, questions, feedback and of course comments from you. If you have not subscribed to my news yet, then welcome!

What can you do with an old mouse? and got the best answer

Answer from User deleted[guru]
Only it is better to make the lamp LED, since incandescent lamps get very hot, and the plastic of the mouse will probably melt.
P.S. Very good LEDs can be taken from lighters with flashlights. Lighters can withstand only 2-3 refills, and the LED is almost eternal.
Source: We don't throw anything away, we don't sell, and we try not to buy. But we give and select, we repair and do it ourselves!

Answer from Yashpa[guru]
take a three-liter jar, pour sawdust, cut an apple, a carrot and put your mouse there - let it live on

Answer from Dimon XXX[expert]
You can make an interesting table lamp: attach a stand at the place where the wire is attached (it can be ready from an unnecessary lamp), instead of a ball, a light bulb. The switch can be made from the filling of the mouse itself at the touch of a button. You can also change the incandescence of the lamp with a scroller and much more.
In this case, everything depends on the imagination and knowledge of electrical engineering.

Answer from Linza[guru]
Look at what brand it is. Go to their website and offer them to buy a rarity from you! Will it be in money!?

Answer from Nikolai Davydov[guru]
hang it on the wall (cut it. glue the glass beads - let your imagination run wild)

Answer from death watch[active]
leave of course .... I have a row of mice, I take out a good old ball mouse and go ....

Answer from SHP!ON[guru]
draw eyes with a marker, cut the wire shorter and you can put it on the shelf
and you will be happy!

Answer from dirty trick[guru]
throw it away and buy a new one where is your logic?

Answer from Owl[guru]
Blimey! RARITE is real. Since 1999, so many mice have died of their own death, and here - a long-liver right. It is imperative to find a worthy use for such a veteran.

Answer from above me[master]
Disassemble to find out what's inside, I've already dismantled 3 pieces

Answer from Copperhead[guru]
Don't throw away! She still can survive three new ones!

Answer from neohuman[guru]
You can, for example, paint in a folk or other style - to make an exclusive.
You can then varnish it so that the paint does not rub off (this is how they do it)

Answer from Mark Slavin[active]
give it to the old cat

Answer from User deleted[active]
Throw it out!!

Answer from User deleted[guru]
fit her to the cat

Answer from Elena Starky[guru]
Hang in the fridge 🙂 And show guests "My mouse hanged itself" 🙂
I have been dreaming of doing this for a long time, all hands do not reach 🙂

Answer from 2 answers[guru]

The so-called "mice" is an integral part of the modern computer. With the advent of new ones, old ones, still functional, but morally obsolete, as a rule, are thrown away or gather dust idle in the pantry. However, they can be used without practically changing the electronic filling. It is quite easy to do this.

RED EYE TURNS ON THE LIGHT

You won’t surprise anyone with original light switches today, but the one below - from an optical computer mouse, in my opinion, is unusual and convenient in a city apartment for several reasons:

– firstly, the SVEN DNEPR miniature mouse fits well into the socket for the standard key switch on the wall;

- secondly, direct contact with the switch is not required - just swipe your finger (or other object) at a distance of 1.5 cm from the "red eye" of the backlight;

- thirdly, the device initially has a trigger effect: once you swipe your finger - the light comes on, swipe it a second time - it turns off;

- a response indicator is also provided - when you swipe your finger at the "backlight", it lights up three times brighter.

A simple current amplifier on a transistor with an executive relay in the collector circuit is added to the optical computer mouse so that the signals from the mouse control a lighting lamp with a power of up to 200 W (limited by the relay parameters) - more on that below. Since almost all computer optical mice are built according to the same scheme and principle of operation, let's consider one of them - Defender Optical 1330, shown in photo 1.

The main coordinate positioning device is a micro assembly with the designation U2 А2051В0323, combined with a photodetector (in one housing). From output 6 of this microassembly, pulses with a frequency of about 1 kHz are constantly received by the red LED, so even when the optical mouse is motionless on the table, a red, barely flickering "backlight" is visible. However, its value is not only to highlight the place occupied by the mouse - for beauty. The LED is a transmitter, and the microassembly itself with an electronic unit built into its body serves as a receiver. When light signals reflected from any surface reach the photodetector, the voltage level at pin 6 of U2 drops to zero, and the LED lights up in full force. It is this reaction that we see in a mouse on a computer table when we try to move it.

Full LED burning time is 1.3 s (if there are no longer mouse actions). One of the main parts of an optical mouse, oddly enough, is not electronics, but a plastic lens, curved under a certain radius (see photo 2), without it the mouse "blinds".

It is necessary to install the mouse in the wall niche under the regular switch in the assembled case, which securely fixes the optical lens from the side of the base (substrate) of the mouse.

When a signal reflected from an obstacle (your finger, palm) arrives at the photodetector, the level of the logical signal changes to the opposite on pins 15 and 16 of the microassembly U1 NT82M398A (and, accordingly, on pins 4 and 5 of the microassembly U2). Moreover, these are not inverse conclusions, but independent of each other. The signal change on them occurs depending on the vertical or horizontal movement of the mouse. The control signal for the actuator (low level changes to high, pin 15 U1 and pin 4 U2) is connected to the actuator, to point A.

The transistor opens and the relay turns on at a high logic level at point A. Diode VD1 protects the relay winding from reverse current surges. Resistor R1 limits the current in the base of the transistor. The relay can control not only a lighting lamp, but also any load with a current up to 3 A. The power supply is stabilized, with a voltage of 5 V ± 20%. The transistor can be replaced with KT603, KT940, KT972 with any letter index, and the K1 executive relay can be replaced with RMK-11105, TRU-5VDC-SB-SL or similar for an actuation voltage of 4-5 V.

The four-wire cable is partially soldered from the board at the junction with the standard connector and two wires are soldered (green and white to terminals 15 and 16 of the U1 microassembly from the side of the elements (not printed wiring), otherwise the wires will interfere with the installation of the board in the mouse case.

The initial wiring of the connector on the mouse board: the 1st output is a common wire, the 2nd output is the “+5 V” power supply, the 3rd and 4th output pulses.

If the circuit and printed circuit board of your mouse do not correspond to the one shown in the Defender Optical 1330 example, it is enough to take any oscilloscope or logic probe (indicating at least two main states - high and low) and experimentally find points with a control signal on the board.

Any optical mouse for a PC will do, so it doesn't matter which connector is at the end of the connecting cable of a computer mouse, you still have to remove it. You can also use wireless mice (with signal transmission over a radio channel, for example, from the A4 TECH kit - mouse adapter RX-9 5 V 180 mA), in terms of positioning coordinates, they have the same principle of operation as wired ones.

MOUSE GUARD

Now a new wave of generational change of the common computer manipulator is coming: “tailed” (with wires) optical mice are giving way to their wireless counterparts. For example, the RP-650Z wireless optical mouse manilulators, complete with a wireless keyboard (with an ergonomic arrangement of the main keys and 19 additional reprogrammable buttons), are relevant. The Agilent Technologies sensor used in the RP-650Z mouse is the market leader in this sector.

The optical resolution of the mouse is 800 dpi - this is quite enough for good work. A radio signal transceiver and an AA battery charger with a switch for fast charging are located in one housing (photo 3). This unit connects to a USB port.

A4Tech marks its manipulators with an individual electronic code, thanks to which up to 256 manipulators or keyboards can coexist on one receiving channel. Such a technical solution narrows the data transmission bandwidth, but with a maximum reliable reception radius of 2 meters, this is not critical.

An unusual option for using a wireless mouse - as a signaling device for opening a safe, the operation of a washing machine and even ... a refrigerator is presented below. All of these options are based on the micro-displacement of the subject and even on the detonation effect. When you install the mouse on a metal door, you get a signaling device for its opening or impact (another use case).

I should note that a no less effective signaling device can be obtained if an automobile shock sensor is installed on the controlled surface as a mouse; it is also triggered by detonation or mechanical impact on the controlled surface, and its modern models even have several levels of sensitivity adjustment. In a computer mouse, this option is not, by definition, its first and main purpose, but this is not important; because we are considering its unusual application.

I have had the idea for a long time to draw on a PC, and indulge in Photoshop and illustrator.
Yes, there are tablets for this, but I consider it an inappropriate decision to buy, ala, “try and forget”))

Therefore, it was decided to make from what is at hand ... And what do we have? That's right - a mouse)

And we also have a marker in which you can try to stick her insides.

As it turned out, not everything is so simple, in mice there are usually more details than fit into the marker.
However, if you search you can find a SINGLE-CHIP mouse, inside the body kit - 2 electrolytes of 47 microfarads / 10V each (one on the power supply, and the second on the button) + a 100nf ceramic capacitor.
It connects directly from the PC, all buttons also go directly.
This chip already carries a sensor + controller.
By size - DIP chip.

1) How does the mouse work?

This is the CAMERA that "photographs" the surface. Information enters the chip, it compares this “picture” with the previous one and determines the movement.

She just shoots at high speed.
In order for the “camera” to see what it is shooting - it is illuminated by an LED (usually red), you CAN put any (of a different color / size). And ask for anything.
Light-emitting diode out of sync, and changing the brightness is done to save energy, protect the matrix (camera) and aesthetics.
Important point - optics. The meaning is simple - you need the “picture” of the surface to be sharp (otherwise you can’t compare), in general, as in your favorite soap dish.

2) What do we need in order to repeat?

Mouse with one chip(which one is above). The price is 3 dollars. From it we will take the chip, body kit and lens.
Marker (also above). It's 50 cents
Hot glue.
LED 3mm (any color)
Button without fixation (there is a photo below). It will be analogous to the left mouse button.
Something for decor (design pen should be with design;))