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How to Install GSM Repeater

Mobile technology has opened a lot of doors for communication in places that weren’t always possible. Today, you can use your cell phone just about anywhere. For this reason, it can be even more frustrating when you experience a weak signal in your home or office. The best solution for this problem is to install a GSM repeater in the area where you are experiencing low reception. What is a GSM Repeater? A low signal can be caused by a variety of conditions, such as interference, thick walls or other obstructive structures, or the distance from the cell tower. Since cell phones operate by transmitting radio waves from one base station to the mobile unit, the GSM repeater acts as a middle receiver, in which the signal is amplified before being sent to the cell phone.

Forget about Weak Signal with Mobile Phone Signal Booster

Have you ever had the situation in the office when you desperately needed to call your client and agree on a deal, but your mobile phone kept breaking, saying that there was no connection? The Old Story of the Old World The story of people complaining that their mobile phone is always out of coverage is not new and quite typical worldwide. This very problem is rather painful for workers whose work efficiency depends on calls. Unfortunately, it can be a typical problem of many multistoried buildings, where most office plankton works.

How to manage your expenses effectively

If you are an individual, small business, or a large corporation, your success and effectiveness depend on how you manage your money flow. If you can’t tell by looks at it which part of your business is ineffective, then you can’t do anything to improve. The more people are involved in your organization, the worse it can get. So you need to manage employees, their expenses, and time sheets effectively. It is best to leave automated tasks for software. Expense On Demand (EOD) solutions have been used for several years and have proven their efficiency. Modern Expense On-Demand software solutions monitor money-based expenses and other nondirect expenses like vehicle mileage, travel bookings, timesheets, and more. For instance, you should be able to check each car’s claimed mileage. This would allow to reduce detours or simply track down nonefficient cars. An integrated time-sheet system enables tracking employees’ working hours that can be further approved for payment. As web (cloud) based system, it can be linked with card payments data.

Arduino and Matlab scope project

Oscilloscope is quite a universal instrument which I would recommend to invest first. Normal bench scope does the job pretty well. I am not a big fan of DIY scopes that are built of microcontroller and LCD or interfaced to PC via the serial interface. You will never get decent sampling and functionality with low-end parts. But in other hand, building such scope can be fun and be a good choice for student projects. prem_ranjan shares his Arduino-based scope project, where he outputs waveform to MATLAB plots. The investment into this project is minimal. O course you could capture signal directly to Arduino analog pin, but op-amp based signal conditioning could make life easier. In the end, here are few features of this scope:

Who May Seek For Spy Earpiece?

A spy earpiece is a secret gadget that came into our lives not so long ago. Still, it got trendy among various types of people because of its universal character and the ability to be used in various situations. Right now, we would like to name all types of people who may want to implement a spy earpiece in a certain way. Executives Get Immediate Help The first group of people is businesspersons. They have to talk a lot, making speeches and presentations in front of their partners, colleagues, and even clients. Every new day can bring a new speech or presentation, and it can appear too hard to remember everything, and every detail cannot be kept in mind. In this case, a spy earpiece is an excellent way to get immediate help, being prompted by the forgotten word and figure. The invisible character of the device makes it irreplaceable.

Multichannel ADC using DMA on STM32

Previously we have tried to do a single conversion of one ADC channel. We were waiting for the ADC result in a loop, which isn’t an effective way of using processor resources. It is better to trigger a conversion and wait for the conversion to complete the interrupt. This way, a processor can do other tasks rather than wait for ADC conversion to complete. This time we will go through another example to set up more than one channel and read ADC values using interrupt service routine. How does multichannel ADC conversion works? If we need to convert several channels continuously, we need to set up Sequence registers (ADC_SQRx). There are three sequence registers: ADC_SQR1, ADC_SQR2, and ADC_SQR3 where we can set up a maximum of 16 channels in any order. Conversion sequence starts with SQ1[4:0] settings in ADC_SQR3 register. Bits [4:0] hold the number of ADC channels.

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