How to Use an Android Endoscope?

An Android endoscope is one of the most useful gadgets for smartphone users. It aids in checking areas that can’t be reached easily. If you have not handled any of Android endoscope before, then this is for you.

Following is step by step guide to using Android endoscope.

Install it in your Device

This device is used in Android phones supporting OTG. Besides, an application called scan file can be used to scan the user code, followed by downloading the camera app on your phone and install it.

Launch it on your Device

The next step is going to my apps on your mobile phone to locate the USB Camera Icon. Launch then connect it to the endoscope. Alongside the, is android endoscope is a long cable reaching the most hidden places and torturous routes. It is quite flexible so that it can the folded so that it be more portable. It has a button on its control panel which you can take a snapshot or use microphone high-quality quality sound with an adjustable LED dial.

On the other hand, if you want to use the device on your laptop, you have to download software first on your computer before using it. In addition, there is an OTG cord device can connect the device to the network that links the two devices.

Other accessories that come with it are the magnet, hook and side audition.

The hook is used to retrieve objects from crevices while the side audition enables the device to observe around corners and the magnet picks up items from down to drain.

Tape the Hook to the Camera

Attach the hook into the camera end and tape it to attach firmly. This is to enable the endoscope to pick the located object. Also, you can get back to your to the device then launch again the USB camera 2.0 application then connect the camera using the Micro-USB cord. By that, the camera should see objects within its lens range and ready to be installed.

Use it to see how it Works

For example, you want to pick up a ring that accidentally fell into the tub, you will gradually start by lowering the endoscope hook into the tub and down the pipe. You can probe for any metallic material and monitor its procession through the screen on your phone. Immediately the hook picks up the object, the magnet located on the camera attracts it while the hook is picking up and you can retrieve it by gradually dragging it to the surface. This is done gently so that the object doesn’t fall off the hook.

Conclusion

The android endoscope is the most useful device that is used to reach places that cannot be reached by ordinary hand. Its additional advantage is that of a camera that can be used to track objects, and through this, you will certainly find it most helpful.  

For more Android endoscopes, please check here. 

How Does A Power Supply Work?

We need the power to run various machines and equipment for proper functionality. A power supply is a device that transmits electricity from source to a voltaic load. Its main purpose is to convert current from the origin to the output at right voltage, frequency and electric charges. Other roles of the equipment are regulating the current to loads at safe levels, breaking the charges in cases of short-circuiting and prevention of noise or surge from reaching the load. Supply gadgets have different specifications according to the voltage. There are two main types of 12v power supply, and they work differently. They are the linear and switch mode supply.

How it works

A12V power supply device will decrease the usual 240 volts from the mains to the useable twelve volts required by most appliances/gadgets.

Linear

In the linear type, the supply uses a transformer to lessen the voltage. The transformer has both primary and secondary windings. The former joins the mains while the latter connects the output. The most critical thing is the ratio between the primary and the secondary loops. The turns determine the fraction at which the voltage will reduce. The reduction ratio from 240 to 12 volts is normally 20 to 1 (20:1). Hence, when the voltage from the mains passes through the device, the windings reduce it based on Faraday's law of electromagnetic mutual induction (the electric energy will transform from one value to another).

Switch

In the switch method, the device works by swiftly putting on and off the power from the source to minimize the voltage. The spontaneous change happens so quickly. For example, it will happen at approximately ten thousand times per second. The proportion between the on and off time determines the voltage reduction ratio. When the device receives power from the mains, it rectifies and controls the alternating signal (AC) to a direct current (DC)voltage. It then switches it on and off by a field-effect transistor (FET). It then moves to a transformer for the isolation of the output and source electricity for safety purposes. It uses the results from the output to control the ratio thus enabling it to stay at permissible levels like the 12v. The transformer is smaller in this technique but experiences some noise or spikes. This method is highly efficient compared to the linear because it doesn't produce more heat and is also lighter.

Conclusion

The 12v power supply is an important device that ensures other machines receives current, frequency and voltage at safe levels by a switch or linear means. The former works by using the primary and secondary windings while the latter uses an abrupt on and off switching approach. The switch mode is better because it's cheap, small, light and efficient.  

For more power supply, please check here. 

Why We Need Walkie Talkie Headset?

The first inventor to create a mobile radio signalling system was Donald Hings from Canada. He made it specifically for his employer of CM&S in 1937. He first called it "packet" which he later changed the name to "walkie-talkie". Hings was famous for the device which served well during the war.

The walkie-talkie is mainly used over a short distance. In early days, they opted to use hand-held devices which couldn't meet everybody's needs forcing them to use walkie talkie headset. But can all headset be used with the walkie-talkie? No, not all headsets can use with the walkie-talkie.

Normal headsets are made simply to transfer sound from the source to the speakers whereas walkie talkie headsets enable two-way communication. For instance, a Nokia headset is designed to be compatible with other Nokia devices, which means that the walkie-talkie headsets have other added few features like push-to-talk (PTT) buttons which are easily accessed. It enables the user to be always listening, and when they need to transmit something back, they just push the button to activate their recording device.

Why do we need the walkie talkie headset?

If you have ever seen or used a walkie-talkie headset, you must be able to attest their benefits. The main being that; it allows hands to operate freely giving a comparison with the regular device. The other typical devices require you to hold it when listening to another person while waiting your turn to activate the push-to=talk (PTT) button to give a response. With headsets, you need to do this when you want to talk, the other time you can do your duties and tasks normally.

The most comfortable headsets are the one that goes over the head compared to the earpiece since you don't need to put them in their place (in the ear) now and then. These designs give you a clear sound due to lack of interference which earphone have difficulties to filter.

Where should you use the walkie-talkie headsets? Simple, They're useful in many situations. For instance, it is highly recommendable in a situation which requires people to communicate often in noisy places while their hands are freely kept. It can also be used in large warehouse operation,  live music events and for nightclubs where the departmental heads communicate with the security without needing to talk face to face. Imagine how difficult it could be for them to shout over the various voices?

Now you see why you need the walkie talkie headsets? Go, get one and enjoy their services. For more walkie tallkie headsets, please go to Banggood. 

Know The Types of 18650 Rechargeable Battery

Are you looking for a good battery for your laser pointers, camera accessories like gimbal or a slider and other range of devices that use rechargeable batteries? Worry no more for we have an array that you might like and consider giving a test. Many companies today are manufacturing rechargeable batteries, and it becomes hard to identify a quality battery that may satisfy your need.

The 18650 rechargeable battery might be the battery you have been looking for.

Types of 18650 Rechargeable Battery

This battery comes with two presentable formats so that you can select the one that suits your device and your desire as well: the button top type and the flat top 18650 rechargeable battery.

What is the difference between the two types?

The two batteries carry the same amount of power, and the only difference between them is their contacts design and especially the positive contact node. The bottom, the top battery will have its positive node protruding outwards slightly. Conversely, the flat bottom type will have its positive node flush correctly.

The difference, therefore, lies majorly in the few millimetres of the positive node protrusion in the bottom, top type. I know you might be smiling in disagreement, but you can confirm this by checking at a manual after purchasing the battery. The difference might seem negligible I know, but I bet you agree with me that it is a factor worth considering before making a purchase.

If your device uses more than one battery that is to be arranged in a series, you need to consider purchasing the bottom, top 18650 rechargeable battery so that their connection becomes easy. Otherwise, you will have a challenge connecting the cells in series if you opt the flat top as their nodes will not come into a perfect contact required for the flow of current.

Also, it is prudent to consider the way the power nodes of your device are set. Are they protruding or are they flat? If they are protruding, then you can opt to procure the flat bottom type. If they are not, consider the bottom top battery. Remember we are selecting the best 18650 rechargeable battery for our devices. Therefore, after looking at the difference between the two types, I realize that the 18650 rechargeable battery is more flexible to use compared to the flat boom one.

The 18650 rechargeable battery comes in two types based on their positive power nodes, and we should first consider the nature of the power nodes and arrangement of arrays of our devices before deciding on the best type of cell to buy. However, in general, the bottom top battery is the most flexible to use. For more 18650 rechargeable battery, please check here. 

Mistakes That Not to Make As an Arduino Beginner

Arduino is an open-source hardware and software company that designs and manufactures single-board microcontrollers and micro control kits for building digital devices and interactive objects that can sense and control objects in the physical and digital world.

There are several mistakes that a beginner makes, they include;

1. DIRECT RUNNING OF COMPONENTS FROM PINS

It tends to pull more power from the Arduino, which might lead to ruining of your microcontroller. Avoid the rush and read the instruction till you understand the steps involved. Also, motors are not advised to use directly with the pins as they also drain the power. It is highly advised to use an H-bridge motor. They allow control of DC powered motor without damaging your Arduino.

2.SHORT-CIRCUITING

It occurs when Arduino pins are connected to wrong places. It causes power currents to flow in unintended places thus causing short-circuiting. To avoid such occurrences, it's better to read the manual thoroughly and understand it. You should familiarise yourself with the rail working. For example, the outer rails work horizontally and the inner rails vertically. Always give it a last thought before powering your device as you might identify are the wrong connection and change it.

3.WRONG WIRING

Microcontrollers working is all about pins. They are supposed to be attached to a protoboard. Mixing of Gate, drain and source might lead to power mislead which latter affect your Arduino appliance understanding the importance of each pin is advantageous as there is no way you will ever connect the pins wrongly causing them to backfire on you.

4.CODE ERRORS

Typical errors such as the wrong placing of the lower/upper case or semicolons are what most beginners experience. They tend to alter your program thus not working normally. To avoid this reference from another program as you type as all programs are the same.

5.PIN VOLTAGE

Pin voltage causes an unstable reading of information from the Arduino Nano. When trying to reference something from your Arduino, it might lead to unwanted happenings which are brought about by other unwanted devices close to your Arduino nano. To avoid this ensure the voltage pin is not reducing.

6.BACKWARD POWERING OF THE BOARD

Beginners mostly tend to confuse the V+ and the GND pin. If you want to power your Arduino the V+that is connected to the VIN pin, while the Ground wire goes to the GND pin. If one confuses the two, then you are likely to affect your device. Kindly check your power setup before turning it on.

7.SERIAL PROBLEMS

The serial enables one to display data from the Arduino pins. Problem faced at this point is trying to set up a microcontroller to display at the serial monitor and being at the disappointed at the end. Luckily there is an easy way out, when loading the serial monitor you should also set its baud rate using a drop-down menu at the serial monitor bottom too.

For discounts to buy arduino nano, please check here. 

Anet A8: The Top-not 3D Printer

3D printing has gained momentum in the recent past, which is the process of making a three-dimensional solid object from a given digital file. Today in the market there are numerous 3 D printers, but only the best carry the day. Anet A8 so far stands out as the best 3d printer in 2018. The printer is loaded with the top not features that not only guarantees you high-quality printing but also it comes at a low price.

Needless to say, this exceedingly excellent 3D printer kit is compatible with numerous other devices. This property has increased the lover of the printer. You can build your 3d printing kit in a few steps with the help of a manual. This gives two options; fully custom printer and the printer in a box.

The Anet A8 3d printer kit is a breeze when it comes to printing. This quality makes it the best printer for 3d printing beginners. Among its outstanding features are; the data input technology (memory card and USB), LCD monitor screen, layer resolution of 0.1 mm and a print precision of 0.1 - 0.4 MM. When you purchase the printer kit, it comes with an instruction manual as well as installation video.

The Anet A8 printer has a gross weight of 9.5kg and dimension of 510 x 410 x 415 mm, while the printing size is 220 x 220 x 240 mm, an ideal size for most printing. Moreover, this 3d printing kit has a higher printing speed of up to 100mm/s. Such speed will ensure you have your required copies within the specified time.

The 2004 LCD screen has five keys that make it easy to control the printing process. Also, the smart board is easy to manage and allows for pausing anytime. The extruder is mk8 customized allowing stable print and a high precision visual experience, thanks to the metal nozzle sophisticated technology.

The 3d printer kit can work up a 1000 hrs without interruptions, and at the same time not interfering with the quality of the printing. This property majorly due to its top-quality step motor and high stability due to the brass nuts, lead screw and the lead rod. Besides, the high precision is due to the main board that is updated to support more functions.

The high-quality power supply components moderate the power supply to this 3d printer kit. These components allow for continuous printing without the fear of electrical faults. The power supply is 180 watts and a voltage of between 110 and 240 V.

With the ability to support some operating systems - XP, WIN7, VISTA, WIN8, WIN 10, LINUX and Mac, it gives the user a wide array of tools to use. This implies, as a user you are not limited only to one OS while using this printing kit.

If you wish to enjoy 3D printing, Anet A 8 printers are the way to go. It is fun and it will give you values for your money. For more details about the product, please check here.