That's where it has a button: the terrible secrets of the "smart" button for a smartphone. MIkey - smart button Button in 3.5 socket

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Recently, a gadget called Click Quick Button has become popular. This is a physical button that can be connected to a mobile phone or tablet. The button is inserted into the headphone jack and allows you to perform certain actions, such as turning on the LED flash, launching the camera, and so on. We offer to make such a gadget with your own hands.

So, we need:
- glue gun;
- soldering iron;
- heat shrink;
- clock button;
- 3.5 mm mini-jack;
- tester;
- mobile phone.


The clock button, according to the author, can be soldered from some old and unnecessary board. With this, you should start making the gadget.




After soldering the clock button from the board, we thoroughly clean the mini-jack.


Since the tact button has four paws, it is necessary to determine which of them are working. To do this, we take a tester, switch to resistance, connect buttons to two legs and press it. If the tester shows a short when pressed, then we have selected the correct pair.

We bite off the remaining two paws with wire cutters.


Let's move on to assembly. The mini-jack has four outputs - mass, microphone output, as well as left and right channels. The clock button must be soldered to ground and the microphone output.




Since the upper channels are not needed, they can be bitten off with wire cutters in order to make room for the button.




So that individual parts of the mini-jack do not accidentally remain in the mobile phone connector, we drip a couple of drops of superglue between them.






Solder the button to the mini-jack.




Properly isolate the place of soldering with hot melt adhesive.






We put on heat shrink and fix it.

At the end of last summer, the whole world learned about " magical» button from the Pressy project. The creators of this idea announced the project on " Kickstarter", planning to raise 40 thousand dollars, and eventually collected all 695 thousand. From the idea level to the level of the model being sold, this button went pretty quickly, and now it can be purchased for $27. However, many critics felt that the price was too high. Xiaomi has caught on to this trend and has come up with its own button. Xiaomi Mikey(Xiaomi MiKey). It sells for less than $ 1 and this review will be just about it.

The essence of the work of this gadget is identical to the work of Pressy. The button itself plugs into the 3.5mm headset jack and controls the predefined functions and capabilities of your smartphone. To set these functions (and there are about 9 of them), you need to download a special branded application on Google Play or other sites. It is possible to bind not one, but several different actions to the selected number of clicks. This review will help to consider them in more detail.

Overview of Mi-buttons

For example, Xiaomi Mi Key can take a screenshot of the screen with a single press, double-click to turn on the flashlight or start the voice recorder, triple-click to take pictures from the main or front camera and send them to a given address. In addition, it is possible to launch a window with 4 different functions of the user's choice. There are a lot of options for action.

The mi-button counts the number of clicks per day and credits certain points to the owner's "balance". In the parameters, you can set the reaction speed, select focus during covert shooting, activate background work and launch the toolbar in the drop-down "shutter".

Nuances

The software that ensures the operation of this gadget is constantly updated, and this is not the limit - there is something to improve. For example, many users complain that the Mi Key button does not respond even to a single press, let alone recognize 2, 3, 4 or more clicks. There are also cases when the desired program does not start immediately, but after some time - five or ten seconds, but at the same time the program is already hanging in RAM, occupying it.

It may be worth just getting used to and calibrating the button response speed slider, however, most likely, this device will work 100% only with a Xiaomi smartphone. It is understandable - the manufacturer is one, and therefore the reaction will be predictable. In other smartphones, the principle of operation will be slightly different, and therefore it is impossible to predict how the button will behave with them.

Equipment and design

Xiaomi Mi Key went on sale in six different colors. At the same time, the device itself is of the same silver color, but the covers for it are multi-colored. If the user wants to connect headphones to the smartphone, then this same case can be attached to the wire, although it is very easy to lose the button in this way. But do not worry: the price for the device is minimal. In addition, if you regularly listen to music through a wired headset, then most likely you will not need the Mi Key button.

We hope this review was helpful to you. Share your experience Mi Kay in comments!

Today we will talk about a rather controversial accessory, namely a physical button that can be plugged into the headphone jack and assigned various actions to it. How convenient and necessary it is, let's try to understand the review.

A little background

This great idea originally came up on kickstarter - Pressy (link). The project was quite ambitious and quickly collected the amount needed for commercial implementation (about 700 thousand dollars). At first, the idea went, and the hype was great - the accessory was mentioned in almost all major technical publications. After all, the idea is really good - a miniature button that can be connected to the headphone jack of a smartphone (Android / iOS) and programmed for various actions, for example: one press turns on the flashlight, two presses take a picture with the camera, one short - one long press launches any application - there can be a huge number of combinations.

But despite the great idea and good implementation, the excitement quickly subsided, because for a very simple device (headphone jack, inside which there is a resistor and a clock button on top), the creators ask about $ 30. And this, in my opinion, is a lot for such a simple device.

And then, as usual, Chinese manufacturers picked up the idea and made a lot of "Klick quick buttons" under different names (Klick, MiKey and others), but completely identical from the technical side. The price, of course, has dropped significantly - and varies depending on the quality of workmanship from 5 to 15 dollars, which corresponds to this simple device. Next, we will talk about just one of the Chinese buttons.

Meet - Click

In a huge number of different Chinese click quick buttons, as it seemed to me, the quality of execution (both the button itself and the application for setting it up) stands out under the unpretentious name “Click” (the manufacturer even has a website - link).

When the button arrived from China, the quality did not disappoint me: both the button itself and the packaging are all very presentable.

Upon arrival, the box was not wrinkled, but became such already with me in anticipation of a review.

click - packaging

When opened, the box unfolds, and on its inside we see a brief instruction for use.

Click - equipment

Case for Click

In addition to the button itself, the package includes a keychain ring and a small case that can be attached to a squirrel ring or to a headphone wire.

Applications for Android to work with the button

If you just connect the button to your smartphone, then it will simply be defined as headphones. Therefore, before doing this, it is worth installing applications. There are several options for Android.

Press It! Power Button Psre sy

This application can be downloaded from Google Play (link)from the makers of Psresy.The free version has enough meager functionality; there is an interesting function of a fake call (when you press the button, the smartphone starts ringing, as if it received a call). It works somehow incomprehensibly - sometimes it reacts to pressing, sometimes it doesn’t, and why it’s not clear. Against the background of other applications, I do not recommend using this.

Application pros:

  • spoof call feature.
  • unstable operation of the application;
  • it is impossible to configure which scripts work when the screen is locked and which do not.

Miclick (MiKey)

The application is from Xiaomi, it is not on Google Play (it is preinstalled on Xiaomi smartphones), you can download it from w3bsit3-dns.com, there is a translated version (link) - thanks to user malchik-solnce.

The application works stably and clearly - as it should. You can program 10 events (from one to 10 clicks in a row). There are quite convenient scenarios (in addition to the standard ones): for example, you can clear the memory of running applications, lock the screen, turn off the sound, take a screenshot.

  • stable work;
  • many convenient scripts (memory clearing, screenshot, etc.);
  • fast response at the push of a button.
  • the application does not distinguish between long / short presses;
  • it is impossible to configure which scripts work when the screen is locked and which do not;
  • not on Google Play.

Click

This application is from the manufacturer of the “Click” button, you can download it from Google Play (link). The application distinguishes between long and short clicks, which is very convenient - this significantly reduces the number of button clicks required to execute the script (for example, 4 quick clicks is not very convenient anymore, one short, one long is much more convenient). It works very stably, but, unfortunately, it has few “special” scenarios (like clearing memory and the like), there is a rather interesting opportunity to take a picture with the camera by pressing a button without launching the camera application (even if the screen is locked), but in reality nothing good comes out of such pictures, you still need to see what gets into the lens (strictly speaking, this function is also in other applications, but it worked correctly for me only with this one).

For each of the scenarios, you can choose whether it will work when the screen is locked - this is convenient, because if you carry a smartphone in your pocket, you can’t get away from accidental single clicks.

  • stable work;
  • the application distinguishes between long / short presses;
  • it is possible to configure which scripts work when the screen is locked and which do not.
  • few special scenarios.
  • there is a slight delay (~1.5 sec) from pressing the button to executing the script.

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Summing up, I can say that I liked the last application the most. The delay when pressing, of course, slightly spoils the impression, but without the ability to choose which scenarios work when the screen is locked and which do not, using the button is not very convenient (it will still be accidentally pressed), and the ability to configure combinations of long / short presses is also very convenient.

Click button operation

We sort of figured out the application, now it's time to connect the button to the smartphone's headphone jack.

The button fits into the connector very tightly and is held there tightly - you won’t be able to accidentally lose it. Of course, it sticks out a little from the case, there is no way without it, but this does not spoil the appearance of the smartphone and does not interfere with use.

It is worth understanding one obvious thing: when the button is connected, do not connect headphones / headset to the smartphone. If you are accustomed to often use the headphone jack for its intended purpose, then it is not convenient to poke the headphone button. For me, this was a very urgent problem, since I used to use my smartphone as a player. But it so happened that now I use two smartphones, so I transferred all the music to one, and I use the second with Klick. If there was only one smartphone, then, I think, from an additional button, I would most likely refused and used the connector for its intended purpose.

Despite the fact that a fairly large number of scenarios can be configured on the button (more than five on average), it’s really not convenient to use more than three or four - if you need to press the button more than three or four times to launch, then it’s easier to just launch the desired application in traditional ways and not count a bunch of clicks.

When choosing applications for quick launch via a button, I was guided by two principles: applications that are used more often than others, and applications that may need to be launched as quickly as possible (for example, the camera). Also, when setting up, it should be borne in mind that an application configured to launch with one click will inevitably work by accident (the button will be pressed in your pocket or something else), so it makes sense to set it up so that one click only works when the screen is unlocked.

Of course, in order to get used to a new button on a smartphone, to choose applications that are really convenient to assign to it, to remember to the level of automatism how many times you need to press it for this or that scenario to work, it takes time. But after walking for a month, you already involuntarily start looking for Klick on all smartphones that fall into your hands.

A few words at the end

Despite the brilliant idea, such a button will not be convenient for every smartphone user. Therefore, if you are thinking about purchasing it, you should think about whether it will be convenient to occupy the headphone jack, and what scripts will be executed when pressed.

I've been using Klick for quite some time now to get used to it and understand that the accessory is really convenient, and for the sake of it you can put up with the fact that on one smartphone the headphone jack will be constantly busy.

Most recently, I saw the Pressy project on Kickstarter. Decided to look at the options. It turned out that there are plenty to choose from. Click, 360 smartkey and Mi key from Xiaomi. In general, I decided to buy and try in practice. I ordered a Mi key for $4 because paying $35 for the original Pressy seemed unreasonable to me, because there were doubts whether I would use it in everyday life.

I love summer, the best time for orders, they arrive quickly. In a small parcel was a small envelope in which there was a miniature button. After unpacking, I began to test on all the devices that were at hand.

I started with the native Mi key application. The program has a wide range of possibilities and offers to assign an action from 1 to 10 clicks. In the additional settings, you can flexibly change the parameters necessary for comfortable work with the button. In practice, the application with a smartphone Z te nubia z5s mini worked only on a single press, double, triple, etc., from the second or third time.

Things were a little better with the 360 ​​smartkey app. Its capabilities are limited to the assignment of commands for single and double pressing. Additional features can be activated in the settings. The smartphone quickly and accurately responded to all commands, but from the locked state it worked the second time.

After trying all the applications, I settled on Klick because it worked the most correctly even when the smartphone was locked. The application has the ability to combine short and long presses, but the Mi key button does not support them. I want to draw attention to the fact that it makes sense to try all the applications and choose the one that will work without problems with your smartphones.


After several days of operation, the Mi key was satisfied with the smart button. True, the only use that I found for her was to launch a flashlight and a camera, although sometimes taking a picture is faster in the traditional way by activating the camera from the lock screen. There were no random triggers. The button can help in an unforeseen situation when you need to urgently send an SMS, make a call or start a video recording without looking. You just need to be 100% sure that the button will work the first time. For users whose devices have diagonals of more than 5 inches, it may not be convenient to reach for the button. For those who like to listen to music from a smartphone, you will have to constantly change their places. The price of the button is small, so if you want to buy it, everyone can.