2016年10月27日星期四

XiaoMi Yi M1 Review: Simple to Operate Rivaling a Mobile Phone

Have you ever known about the fresh Yi M1 Mirrorless camera? Well…XiaoMi Yi M1 is called the first smart Mirrorless camera for the youth in China. This camera is equipped with 20.16 million effective pixels, M4 / 3 system, and CMOS sensor (Sony IMX269). The sensitivity range is ISO 100-25600. It not only supports up to 1/4000 second shutter speed and 5 / second continuous shooting speed but also supports 30fps 4K video recording and lossless RAW shooting. In addition, it can connect to the mobile phone via WiFi/Bluetooth, and supports other functions.
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In terms of the appearance, the body of this camera is not made of a single piece of aluminum alloy but plastic. With the dimensions of 113.5x64.3x33.6mm, it is slightly larger than the Olympus E-PM2 and Panasonic GM1. And the manufacturer provides two colors for choice, storm black (all black) and ice silver (silver black).
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The main operating area of this camera is concentrated at the top. On the middle of the top, there is a common hot shoe, user-friendly for an external flash lamp and other accessories. On the top side, the front is the shutter, and the power lever with a "built-in" design, not protruding.
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As for the interface and storage, this camera supports only two interfaces, USB 2.0 and Micro HDMI, and does not support the 3.5 Stereo Jack. Between the two interfaces, there is an SD card slot, which supports SD / SDHC / SDXC, and is compatible with UHS-I.
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In addition, XiaoMi Yi M1 is built-in with the BXM-10 rechargeable 900mAh lithium battery, which supports for taking 450 photos (CIPA standard).
Following are the pros and cons of XiaoMi Yi M1.
Pros:
  • With the 2000-megapixel sensor, it providesexcellent quality hardware foundation.
  • It supports4K 30p video capture.
  • It supportsC mode, which provides portrait templates for learning.
  • With Built-in Wi-Fi / Bluetooth, it can sharethe network through the App.
  • It comes with a light and compact body.
  • It supportspeak display for easy transfer.
  • It comes withthe M4 / 3 system and a rich lens group.
Cons:
  • Theflash sync speed is only 1/125 second.
  • The camera needs to improve the speed of response.
  • There is no flip screen.
  • The touch fluency needs to be improved.
  • Some menu settings need to be more detailed.
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Generally speaking, the overall performance of the XiaoMi Yi M1 is excellent. Especially, the smartphone-like simple operation provides quite a good user experience.
Finally, good News for you, Banggood offers presale discounts.
$409.99 for 1-15th orders
$419.99 for 16-50th orders
$439.99 for Behind 50th orders
Normal Prices: $499.00
The Yi M1 Mirrorless camera will arrive on Oct.31, 2016.
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How to Connect an Ammeter

Despite the fact that the ammeter is considered an attribute vehicles produced a long time, this equipment still occurs as early generations of machines. Therefore, replace, repair, or make any other operation should be aware of how to connect an ammeter if necessary.

You will need the connecting wires and a DIY digital ammeter. Since the ammeter into the circuit is connected in series, locate the wires that connect the generator and battery. They must be careful to separate, without losing the value of the polarity of the wires.

As a rule, the generator and the battery are connected by wires of large cross section, so choose those to connect an ammeter should be the same diameter. Accordingly, it is necessary to connect the wires in order to connect the generator and an ammeter to the battery with the same. For this purpose, place them carefully and wrap the tape to avoid closure.


If you are using the ICL7107 ammeter, by and large polarity of the wires does not matter. But in the case of an analog device, be sure to note that negative of an ammeter is connected to the battery plus. BTW, you can select the digital ammeter at Banggood. Besides, you can easily get other electrical accessories (e.g. DIY voltmeter) there with high quality and reasonable prices.

2016年10月25日星期二

What Are Needed for the Reception of Digital Terrestrial Television?

Modern TV-receivers are designed to receive digital signals, but most TVs are available to residents of the Russian Federation, are analog devices, not adapted to receive transmissions in digital mode. However, to get a modern image and sound quality possible, and on a normal TV, has served more than one year.

To adopt modern digital signal to an analog TV, you need an antenna and set-top box, called a digital HD DVB receiver or decoder. And to the antenna and to the console, there are certain requirements, observing that you can get a modern high-quality picture and sound the same.

Do not rush with the purchase of this device, if your area digital television broadcasting has not yet been organized. It is necessary to wait for the beginning of operation of digital television decoder to test in the store. The HD DVB-S receiver is a compact electronic device that receives a signal from the antenna, and then converts it and gave it to the television set. Buying the console in the first place ask about its compliance with the requirements of TSETV network; the instrument must be optimized for DVB-S2 broadcast standard, support MPEG4 video, and Multiple-PLP mode. 

But this is only a minimum set: if you want to take a pay program, it requires conditional access (in the form of a CAM module), and if you plan to record a program, the device must be USB port. It is worth taking the opportunity to set-top box channels broadcasting in HD mode, i.e., high definition. Additional features include the presence consoles display the received signal strength that helps to determine the optimal position of the antenna.

2016年10月24日星期一

Something about the Electronic Clock Kit

Just want to say that those who believe that it is cheaper to buy ready-made, more cannot read! This article is for those who have little interest in, or interested in radio electronics. And as for those who have decided to join this hobby.

Radio-electronics, I got carried away while still a schoolboy. This case comes in the form of small package. We reveal, look what's inside. Set Ingredients - Fee - Seven Segment digital displays with a point - 4 pieces - Chips - 2 pieces (resistors, capacitors, transistors, quartz, and other elements) - power cord - Details housing - Instruction manual is included in the Chinese language. To assemble DIY LCD clock kit enough (the language of circuitry common to all), but the setting had a problem. The building process we need: - the soldering iron; - solder; - side cutters; - Knife assembly decided to recite with passive components (resistors, capacitors, buttons and etc.).


The kit comes two types of resistors (510 and 4.7K), marking them color. You can use a calculator or ohmmeter. But in fact, everything was much simpler, they were signed. Then cut side cutter too much, and in one fell swoop to solder all. In this photo visible trained contact resistors and a number have already soldered. Soldered buttons Sockets for ICs, do not forget to monitor the correct position on the key (notch at one end of the panels). It requires digit control soldered onto the diode, because he does not care which side! It came to transistors, quartz, connectors for 24V 1A power supply and socket for the battery. Check the correct installation of transistors, it is also important! The blessing and the diagram on the board and it is marked all. All, all elements on that side in the place left solder digital segments. We arrange them in their places, and do not forget to turn up a single point! And also one calling soldered. All watches are assembled, drumroll, the moment of truth ... is connected to the power source.

2016年10月20日星期四

Why Does the Electric Motor Overheat?

Electric motors are widely used in the workplace and at home. The new engine, passed factory tests can regularly work a few years. But in violation of the rules of operation sometimes there are faults. One of them is the overheating of the engine, which may well lead to a complete damage it.

Why the Electric Motor Overheats
Disturbances in the motor (e.g. the 300 RPM motor) can be caused by several reasons. These often include a violation of the rules of transportation, storage and installation, and the use of unacceptable operating conditions. Sudden shocks, prolonged vibration and shock is likely to disrupt the integrity of the elements of the engine and it can lead to overheating when working. Even worse, if the motor is stored for a long time in the open air, it feels the effects of low temperatures and high humidity. These adverse factors may well cause the appearance on the outer surface of the rotor and the stator core of rust.

One of the most common faults of the motor is damaged insulation of coils, which in most cases leads to a local short circuit. During operation, the unit begins to warm up strongly, the rotor rotates unevenly, and the machine shaft is permanently deformed. Winding insulation can damage the engine careless transportation, and foreign particles from entering the body. BTW, you can select the cheap gear motor and RPM measurement tool at Banggood.

Other Causes and Possible Remedies
If the engine is turned rotor scrolls with difficulty or not at all is fixed, and at the same time there is intense heating of the body, it is possible degradation of the bearing. With such a rotor and stator faults hit against each other, it leads to a complete jamming. Typically in such a case is required to send an electric motor repair replacement bearing. Overheated motor often occurs when it is overloaded, for example due to high or low voltage. The sharp increase in the room temperature, clogging ventilation channels can also lead to such an effect.

In continuous and prolonged operation of the engine, you can often observe a reduction in power. The electric machine is working at the limit mode, but cannot gain the necessary speed, at the same time starting to heat up. The reason again is becoming overloaded, you want to eliminate. In some cases it is sufficient to switch off the unit and leave it for a while in this state.

8Mm WiFi Endoscope Camera for Endoscopic Video System

As we all know, endoscopic video systems are designed to display the image on the monitor and document the test results. They are used with rigid and flexible fiber-optic endoscopes. In general, the video system consists of an optical-mechanical adapter with a video camera, the control unit, and the monitor. In some cases, the control unit may be omitted. And the monitor can be household TV or computer with an input video signal. So, you need to choose the endoscope camera. And today, I’d like to introduce a new WiFi endoscope camera to you guys.
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This is an 8mm endoscope camera, which supports wireless WiFi connection. It can work with Android and IOS mobile device. You just need to install the APP and do WiFi connection with the endoscope camera, and then you can check the image. This endoscope camera comes with 6 LED lights, of which the brightness is adjustable. With a 2M Pixel high-resolution CMOS camera, it supports HD 720P video.
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Specifications:
  • Camera head OD: 8mm
  • Lens: 2M Pixel CMOS camera, 6 LEDs
  • Resolution: 640 x 480, 1280 x 720
  • Waterproof Level: IP67
  • Frame Rate: 30 FPS
  • Viewing Angle: 70 degree
  • Transmission distance: Within 5-30m
  • Effective Focal Distance: 4-6cm (The best viewing distance)
  • Battery Capacity: 500mAh (Last for 45 minutes)
  • System Requirement: iOS / Android / Windows / Mac
  • Cable length: 1/2/3.5/5 M
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With the mini size and light weight, the 8mm endoscope camera is portable for use. And due to the IP67 waterproof design, it can be used underwater. Thanks to the sucker, it is easy to mount the WiFi box on the back of phones or other places with the flat surface. And the WiFi box was built-in with a 500mAh battery, which can work for 45 minutes, charge via 5V power. Compatible with the iOS/Android/Windows/Mac System, this camera supports photo taking and video recording on mobile phones.
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Generally speaking, this WiFi endoscope camera can be used as an underwater camera, waterproof micro-camera, motor vehicle detector, sewer pipeline detector, search and rescue detector, criminal and custom detector, or archaeological detector. In addition, it can be used for the PCB detection, aviation and space industries, care and tractors industries, the petroleum drilling industry, construction industry and so on. By the way, in the process of the endoscope camera choice, you should decide what you want before selecting the control unit and make sure that you get the best estimate of your hard-earned money.
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How to Program the DDS Function Signal Generator

In principle, you can use any of the nominal value from 8 MHz to 16 MHz - you just have to put in a program the desired frequency. Resistor in the circuit 5 ohms. (From the left edge of the 7 pieces obtained by parallel connection of resistors 10 ohm - sealed sandwich). On board there are 4 jumpers 1206 a variable resistor to adjust the contrast of the display after the measurement is replaced by two fixed resistors. Due to the relative simplicity of the circuit elements on the circuit board and the pin numbers are not signed - easy to understand. On the right side of the chip displayed three pads for analog legs - two ADC inputs - just in case.

Now about the program. For the source program of Italian colleagues, mentioned in the first part of the article about the DDS signal generator kit has been applied. I removed most of the Italian words, changing them into more understandable English counterparts, and changed the principle of data output to the display. The main body of the program (cycle DO LOOP) consists of a reference to display the sub-programs, the survey keyboard and navigation on the display). For each menu item has its own sub-program uses the destination buttons, well, and, if desired, the user can tailor them to your wishes. As a conclusion of the data used to display an array of two strings of 16 characters in length, each of which I change values - numbers, letters, etc. The current position is indicated by a blinking cursor.


LF DDS generator currently generates 8 signals: standard - sine, square, sawtooth, triangle, and not very - pseudonoise, of cos-type function (x) * sin (5x) , damped sine wave and a square wave signal with a variable duty cycle increments ≈ 1%. The last three tables were accidentally found in the depths of the internet, and are inserted for collection - if desired, they can be changed to something more useful. The rectangular signal with variable duty cycle - a useful thing, and the subroutine was written under it. BTW, you can select the DDS signal generator kit at Banggood. Besides, you can easily get other electrical accessories (e.g. security tag hook key) there with high quality and reasonable prices.

2016年10月19日星期三

How to Make Decorations for the Christmas Tree

Today, in stores rich assortment of Christmas toys, so many families’ tradition handicrafts ornaments for the Christmas tree with his hands almost lost. Meanwhile, any, even the most expensive luxury goods, cannot compare to homemade. A variety of handy tools can come in handy for Christmas decoration.

Natural material. If before the winter you collected cones, acorns and chestnuts - just wrap them in foil and make loops of thread. "Silver" cones and balls ready! Of the more tree's acorns can make beads, strung them on a long strong thread.

Balloons and thread. With their help, you can create any shape in the form of a sphere: - Inflate three balls so that each next was more than the previous 
- Lubricate them any cream; 
- Take the empty pharmacy container of medicines made of plastic, and then make the hole with a needle on both sides;
- Fill the container stationery glue and thread it through the holes white thread;
- Dragging the thread through the hole (it is uniformly wetted with glue), tightly wrap the balls; 
- Allow the glue to dry, pierce balloons needle and pull them
- Make a snowman, sew all the components. Draw eyes and mouth gouache, red sew fabric nose-carrot and tamp it with cotton wool.

Candy wrappers. Do not throw away wrappers from the gifts that the children got on New Year's morning. Make of them Christmas decorations. Bright butterflies of them can make even a preschooler. On a butterfly leaves two candy wrappers. Fold each flap in an accordion on the diagonal, then fold them in half and tie a long thin ribbon - for it you tie floating "insect" to the electronics Christmas tree branch.

Eggshell. Carefully perform the two holes at the top and bottom of the shell and blow out the contents. Paint an empty egg in the color you want and decorate it with glitter. Pass the thread through the hole to form a loop. Downstairs unit secure with beads. You can stick to the whole egg shells ears, noses, paws, tails of colored paper - funny animals are obtained.

BTW, you can select the Christmas decorations at Banggood and the electronics (e.g. EDC gadgets) prices are reasonable.

2016年10月18日星期二

Pumps with the "Wet" Rotor for the Circulation of Hot Water

To resolve this issue between the boiler and the draw-off points is laid an additional pipeline, and the circulation pump is installed on it. The circulation of water in the hot water system (hot water) is needed for the hot water to be available at any time of the day right after the opening tap. Considering that water needs for domestic hot water is usually unprepared cold water containing hardness salts and dissolved gases, it is evident that standard pumps used to circulate the heating systems cannot provide a reliable and continuous operation. Therefore, for this purpose uses a special pump construction with a "wet" rotor. The features of this series are brass or bronze body (depending on the type), and the impeller is made of stainless steel or special food grade plastic. The main difference lies in the design of the motor, which ensures the absence of it in salt deposits.

Another problem is the formation of dead zones in the heating systems where the water cools even when the pump is running. Among the causative agents of various diseases that may be present in the water, for a man especially dangerous so-called Legionella can cause legionellosis acute infectious disease characterized by severe pneumonia. The most favorable breeding ground for this type of bacteria is warm stagnant water with a temperature of 25 to 50 ° C. In modern boilers provides the function of a thermal disinfection of the water when during the night the water is heated to a temperature of 70 ° C, which is enough to kill bacteria in the boiler tubes and the next. However, water pipelines in remote areas and does not pass the stagnant thermally disinfected, and its use after passing through the pipeline remains unsafe.

To solve this problem helps to pump, the circulation pump with hot water motor supports automatic mode boiler thermal disinfection. With built in determining the start time of thermal disinfection procedures, it provides extra protection against Legionella. Since this procedure is carried out at night, when the circulation pump is switched off, it is necessary that the temperature rise and the inclusion of the pump monitored even when you turn off the automatic timer. Thus, the use of the pump this model allows the first stage to automatically determine the time during which the disinfection of the boiler, while the second - turn on the pump at the right time, ensuring the circulation of very hot water over the DHW system and disinfect pipelines simultaneously with disinfection boiler.

BTW, you can select the Pumps with the "Wet" Rotor at Banggood. Besides, you can easily get other electrical accessories (e.g. lock pick set credit card) there with high quality and reasonable prices.

2016年10月17日星期一

How to Connect an Electric Guitar

The sound quality electric guitar is almost entirely dependent on the audio equipment. It can be connected to an amplifier or a computer, and attach it to various devices, which provide the desired effects artist. First of all, you need to properly connect the instrument to the amp, amplifier or computer.

You will need
- Guitar;
- Amp;
- Power;
- A computer;
- Effects pedal;
- Guitar processor;

Amp is the number of devices installed in one box. It has a pre-amplifier and power amplifier, audio processing blocks and effects, tone-unit, control panel, sound system. It is very convenient, and the executor can only connect a miracle device with his instrument. As a general rule, wire assembly "AUX to Jack 'is sold with a guitar. It can be purchased separately or solder. Find the guitar output jack Output, and amp - Input. Connect the wires and connect them to power amp. If you are going to use a processor or guitar effects pedals, connect them between a guitar and a guitar combo. Input and output jacks should always be labeled. Output jack to connect a guitar to the Input pedal or processor, and their Output - to the input of amp. For home rehearsals enough amp power of 15 - 20 watts.

To connect a line amplifier can be used as a computer or speaker. The connection is the same as in the first case. The main thing - do not mix up the nest. When connecting to the line just attach the pedal or processor. It is possible between the guitar and the amplifier to connect the mixer. It allows you to adjust the power and timbre of different instruments. Guitar output is connected to the mixer input, the output of the mixer - to the input of the amplifier.


When you connect an electric guitar to the computer plays the role of the main amplifier sound card. It is possible that you need an adapter as guitar jack likely 2.5mm female jack and the computer can be 6 mm. When you connect an electric guitar does not matter which one to use adapter - mono or stereo. 

2016年10月13日星期四

How to Replace the Chuck for Drills

The drill is equipped with a keyless chuck, which is inserted in the drill. If you frequently use a drill, the cartridge may be broken, and if you do not drill for a long time, it can rust. In both cases, you need to know how to change drill chuck.

Steps
  1. Loosen the chuck to drill bits without a key. Turn it to the right or clockwise. If there is no screw in the cartridge, you will be able at this stage to remove the cartridge.
  2. Insert a screwdriver into the chuck, if indeed there inside the screw.
  3. Turn the screwdriver to the right - clockwise to loosen the screw.
  4. Remove the screw from the cartridge. Choose the right size screwdriver to prevent cross threading.
  5. Try different size hex keys and insert the largest, which will be able to stick in the socket.
  6. Tighten the chuck with an Allen key by turning it to the right.
  7. Remove the Allen key and move it to the left side as a "handle".
  8. Knock a wooden mallet, striking downward, pushing the Allen wrench in a counterclockwise direction. Knock up until the cartridge is loose. Loosen it with an Allen key is enough for you to hand to remove the remainder of the cartridge.
  9. Fasten new impact drill chuck, performing these steps in reverse order.


Advice

In order to unscrew the screw, it is necessary to turn the screwdriver to the right, clockwise movement. After unscrewing the screws to remove the cartridge, attach the hex key to the left and turn it counterclockwise. Most drill chuck thread of 1 cm or 1.3 cm. Check the thread pitch before buying a new cartridge.

How to Make a Peristaltic Pump with Your Hands?

The first step is to choose the correct tube. Although if the purity special value of the pumped liquid is not for you, then there is not all that bad. But do not forget that the performance depends on the internal diameter of the hose. Hoses can be made continuously or fixtures that allow them to capture still.

Then you can collect a peristaltic pump with your hands. We use the required diameter rollers, which have to buy in the store. Are driven by their best with the help of an electric motor via a shaft or belt drive. Around the rollers stretch the tubing and assemble the whole thing in the case. One end of the hose is placed in a container from which the liquid is drawn, and the second - at the destination. Note that while the rollers are evenly dosed liquid, of course, if it's important. In principle, nothing complicated. The main thing to build a high-quality aquarium peristaltic pump that will meet their performance. The electric motor can be used as a low-power motor. Here it is essential to take into account the diameter of the tube.

Like any other pumps, this kit comes. Usually, there is a special passport, which indicated grade. There are specified and specifications. If you are going to buy a 12V DC peristaltic pump, then pay attention to parameters such as the type of impeller and the number of rollers. We've already figured out that the more clips the better, but the equipment is expensive because of its complexity.


What matters is the type and diameter of the hose. Scope of material depends on the diameter and - performance. After all, there is such parameter as power. It is in many cases the main and determines the effectiveness of the equipment as a whole. To ensure a more comfortable use of these pumps you can buy additional components. If you are going to pump in his studio, set the control of the rotor speed. This will control the speed of rotation of the rollers, and hence the productivity.

2016年10月11日星期二

LED Ocean Night Light Projector Review

Ocean reflection in your room - an excellent tool for complete relaxation, stress relief and improved mood. This lamp will help you feel like a lie (s) in the crust of the basin is highlighted. Nice blue iridescent light creates the illusion of movement of water.

Also in this ocean night light projector, there is built-in an audio player, so you can attach them to your player with your favorite music or simply reproduce the noise of splashing water to completely immerse yourself in relaxation and relaxed state. Perfect for stress relief or create a romantic atmosphere.

Transform your bathroom with a new ocean projector LED projector that creates miracles just as soon as you turn it on you will forget about stress and its fatigue. This is also the perfect way to create a peaceful and soothing atmosphere after a long day's work or a great way to add a little romance to your night life! BTW, you can order this ocean night light at Banggood. Besides, you can easily get other electrical accessories (e.g. locksmith picks) there with high quality and reasonable prices.

Specifications:
Buttons / Ports:
-Power the ON / the OFF
-Tom-UP / DOWN
-Built in speaker
-3.5 mm audio jack
-USB-port Power
Power Source: USB-adapter or 4 AA batteries
Dimensions: 127 * 135(mm) Diameter


2016年10月9日星期日

What is the Best USB Microscope?

Scope digital USB-microscope is extremely wide. These devices are collectors, jewelers, watchmakers and scientists. Apply them in everyday life. All USB-microscopes have a small size. They can be connected to a computer, laptop or tablet to transmit and store data. The feature set varies from instrument to instrument, and the choice of the microscope must be guided by the purposes for which it is acquired: explore collectible coins and stamps, perform minor repairs or to interest the child study of biology.

Technical specifications
The main technical parameters should be considered when choosing a microscope. This zoom range, the sensor resolution and frame rate of the younger schoolboy enough device with a 100-fold increase - this is quite enough to treat an enlarged view of a grain of sand, insects or leaves of plants. Children of secondary school age is interesting to experiment with the use of a digital microscope, it would require the instrument with a magnification of 400 times. If the microscope is necessary for an adult to work, the multiplicity must be at least 500, for example, the USB 500X microscope

Resolution determines the level of detail in the image, so it should be high in any case. The best option is 1600x1200 pixels. The rate must not exceed 25 frames per second, if the work will consist in the study of fine details. If you plan to record video, you need the frequency of at least 30 frames per second.

Equipment
In completing the USB-microscope must include camera is equipped with an adapter and a CD with appropriate software. In addition to these compulsory subjects in the box may also include other devices - such as an arm. Microscope mounted on a bracket, will not tremble, twitch, hence the quality of the staff would be much higher, to neglect this detail is not necessary. The USB-microscopes for special purposes are often equipped with additional components. In particular, if the microscope is intended for the repair of electronic circuit boards, the kit may include special latches for them. BTW, you can select the USB Microscope at Banggood. Besides, you can easily get other compare electronics there with high quality and reasonable prices.