Monday, June 10, 2019

SARODA Solar Power Bank Review, The Solar Phone Charger I Bought

It's exactly two weeks I bought this Solar Power Bank which also works as a solar phone charger and light. I decided to write this review about the device now because I wanted to test it and confirm how it works.

The name of the solar device is actually Saroda Solar Power Kit. It is a multipurpose rechargeable device that serves as a power bank, a phone charger, camera charger, a touch light and room LED bulb controller.
Solar charger kits
This smart electrical device will be suitable for some developing countries where there is no steady power supply so we need to harness the free natural energy from the sun to charge our phones. Technology is fast exploding to something else and it's for our own benefit.

The device is different from other Solar phone charger because it supports dual charging technology. I mean, you can charge it via the sun ☀ or via electricity so if there is no sunshine, you still have the option to charge it with Power supply from PHCN or with your Generator.

Note: this device is not like the MTN Lumos solar power kit that you need to recharge every month just as you pay for PHCN bills, it's yellow in color. Once you buy this device, it's totally yours and no more payments.
SARODA solar phone charger
The device also have an 8000mAh battery backup hence, it's called a power bank. You can charge it during the day and use it at night to charge your phone. In this post, I will reveal my whole experience with it, the advantages and disadvantages of the device, the price and if it's advisable to have it or not.

This Solar Power Kit is made in China and it's well designed and light-duty. I always turn off the switch when I am not using the device either as a charger or touch light. This helps to save and prolong the power consumption and extend usage time.
SARODA Solar Power Bank carton
✔ SIZE: 160(l) X 30(w) X 110(h)mm
✔️ Lead acid battery: 4V, 8000mAh
✔️ Adapter charging: 5V 1000mAh
✔️ DC Solar input charging: 6V solar panel.
✔️ USB output discharging: DC 5V, 1000mAh
✔️ Output discharging: DC 6V
✔️ Operating Temperature: 0-50°c
✔️ Electricity Charging time: AC 110-240V, 50/60Hz: 8hrs
✔️ DC Solar Panel charging time under available sunlight: 8 - 10hrs
✔️ Operating Time:
👉 front light (high) 59hrs
👉 1 LED bulb: 65hrs
👉 2 LED bulbs: 35hrs
👉 Front light (high) + 2LED bulbs: 21hrs

There are several items you will find inside the pack when you buy this device, I have listed them below.
✔️ 6V, 5W solar panel
✔️ 5 in 1 USB charging cable
✔️ Two High intensity LED bulbs with long 5 meters of wire and individual switches
✔️ DC adapter for charging the phone from PHCN power (national grid) or from your power generator.
✔️ The power bank itself which is an 8000mAh multipurpose battery.
Solar phone charger
Before using thia device for the first time, ensure you go through this cautions for your own good and for those around you and also for optimal performance.

1. The charge indicator will be green when it's being charged, the working indicator will be green when the switch turns on, the battery indicator will turn green to red when low battery and please charge it in time in this case.

2. It is normal that the product might be heated when charging or discharging.

3. The charging time shall not exceed 24 hours

4. Don't use it while charging otherwise it may damage the components inside

5. For safety sake, please take away from children, physical disable of mentally disordered people

6. Keep it away from fire or overheat, otherwise it may cause explosion

7. Keep it away from water or moisture since it is not water-proof

8. Do not demolish or assemble it by yourself unless you are a qualified technician.

9. Avoid direct eye exposure to LED lighting when in use (children should use this product under guidance of adults).

10. Charge it once every 2 - 3 months

11. Please use it properly according to instructions. The makers say they are not responsible for any improper usage or man-made damage.

It is a great device especially if you are using a phone with battery capacity not bigger than 4000mAh. But those using phones with monster battery capacity should not expect this solar power bank to fully charge your phone to 100% with the stored energy.

For instance, it only charges my Gionee M6 which uses 5000mAh Battery from 0-67% but when i used it with other phones with lower battery, it gave it full charge.

Also for your phone to charge faster, don't operate the phone while it's charging otherwise it may take longer time to charge.

However, if you are using the lighting features of this device, wow! It will last you up to 4 days of uninterrupted lightning.

In summary, it's a decent device that will be useful to someone that don't usually have steady power supply but the same time want his or her mobile phone to be online 24/7.

Please pardon me for the low image quality. My camera is faulty so I used one poor camera like that for taking the pictures.

The Saroda Solar Power Bank and kits is available In China, India, Nigeria for now. These are the regions I'm sure of. It could be available somewhere else though. The official price for the original Saroda Solar Power Kit is just N10,000 and if you are interested, you can contact me on whatsapp via this number It is also available in some top online stores like Jumia, Konga, Payporte, Yudala, etc at cheaper price. Is it the best solar phone charger?

SEE ALSO: Meet World's First Solar Panel Expressway

When you get me, please go straight to the point and state your location. Thanks.

Friday, May 31, 2019

How do Travel Fare Aggregators Work?

You have very likely been using travel fare aggregators as your primary solution to cut costs of traveling. Skyscanner, Cheapflights, Kayak, Trip and many many others are usually the first places online you visit when planning a new trip - where else could you find all the airlines under one roof?

And while it is an extremely convenient service for travelers, have you ever thought about all the hurdles these websites have to overcome? Travel fare aggregators have to collect vast amounts of data from the web, so they would be able to offer you the best, real-time prices for a flight, train or bus tickets, as well as accommodation pricing , car rental services, and any other travel related expenses.

We know that all the sources have extensive security checks while trying to prevent any automated data collection, and they do block every IP that is activated and controlled by a bot. So how do these websites access that protected data? Well, I’m glad you asked because that’s exactly what we will go over here!

Travel Fare Aggregation

Web Scraping

Web scraping is a process of gathering data from various websites. There is a vast amount of reasons to implement this process into your business, no matter what you do:

     Market research - to stay competitive in the market, you have to know what your competitors are doing and base your strategy on this knowledge;
     MAP and MSRP monitoring - while the manufacturer can’t really decide on a minimum price of a product in retail, they can suggest it and set a minimum price that can be advertised. Monitoring is necessary to make sure all suggestions and advertising requirements are being followed by product retailers;
     Content aggregation - collecting huge amounts of non-copyrighted content to create a hub requires something more than what a human alone can do;
     Brand protection - making sure that your products aren’t being resold or your brand name isn’t being used as a keyword on some phishy websites is a necessity for a business to protect their business and a hard-fought market share;
     Ad verification - imagine how annoying it would be if your business expenses would be covering for ads that just won’t be seen by potential customers! That happens, when your ads are being placed behind other ads (this way making double the money for the website/app where your ads are being “displayed”) or they are just sitting aimlessly on spam-y websites;
     Pricing - to stay ahead of a competitive e-commerce market, you need to adjust to even the smallest price changes that your competitors make;
     Travel fare aggregation - the reason why we are all still reading this! These aggregators have to create an all-in-one website for traveler’s convenience.

There are many tools, both free and paid for, to optimize your data harvesting operations for you. For most of them to be effective and successful, you will additionally need to bring proxies to help out!

What is a Proxy?

To begin with, a proxy server, usually called a proxy, is a middleman that stands between you and your data source. When you are using a proxy server, your request travels through it, the proxy changes your IP address and handles the process for you. Each proxy server has its own IP address, this way granting your online actions extra security layer.

There are different kinds of proxy types:

  1. Residential proxies - IPs attached to a physical location, provided by an Internet Service Provider (ISP) to a homeowner;
  2. Data Center proxies - IPs that are not attached to any ISP, coming from cloud server providers.

Another way to categorize proxies is their privacy:

  1. Dedicated proxies (private) - proxies that belong to you only, and you have to obligation to share them with anybody;
  2. Shared proxies - proxies that you share with other users, tend to get more banned;
  3. Semi-dedicated proxies (semi-shared) - proxies that you share with a small group of people.

Residential Proxies

Residential proxy has a real IP address given to a homeowner by an ISP. It’s an IP address attached to a physical location. You have one, just google it (“what’s my IP” is one of the most popular searches ever). This kind of proxy is the least likely to be recognized as a bot because, in the eyes of online sources, it looks like human surfing the web. Residential proxies, though, are not only great for travel fare aggregation but for many other reasons too - they all can be found in Oxylabs blog post!

While residential proxies have many benefits, the most important ones are:

     They are perfect for scraping and harvesting data. This feature is the most important for any business, in this case, travel fare aggregators’ websites.
     They are highly anonymous, for all the reasons mentioned prior. This is really important not only for businesses.
     While using residential proxies, you experience almost no blocks - an essential feature for anyone harvesting data daily, or even hourly.

They have some cons too, well, a drawback:

     Pricing. Residential proxies are for sure more expensive than data center proxies. However, as discussed above, it is clear for one to see how much value they hold.

Data Center Proxies

Data Center proxies, as their name already states, are not affiliated with any ISPs. Instead, they come from a secondary corporation. Important to know, that acquiring free data center proxies is not the right choice for business (or in general - for security), because usually the subnets are already blacklisted by many websites.

Main benefits of data center proxies are:

     Speed. These proxies are rapid, compared to residential proxies;
     Price. They are usually much more affordable than residential ones.

Some disadvantages of data center proxies:

     Lower anonymity. These proxies can be slightly less anonymous than residential ones, usually, because the ISP does not provide them so it’s not that difficult to find their real user;
     Blocks. They can get blocked pretty quickly, especially by websites which have greater security levels(i.e. Google blocks a lot of general use data center proxies). Worth noting that a lot of providers will provide a package of proxies made explicitly for search engines.

Residential Proxies for Travel Fare Aggregation

residential proxies for travel

As mentioned before, travel fare aggregators are creating an all-in-one solution for travelers, so they would be able to get the best deals for a plane, bus, train tickets, housing, rental cars and much more. To even be eligible to participate in the fight for the throne of the market these companies have to provide real-time data, which has to be collected every couple of hours (official travel websites prices fluctuate depending on… well, everything)

Best found solution for data gathering is large scale web scraping. To manage these operations in-house, travel fare aggregators should choose dedicated residential proxies to satisfy all their data scraping needs. These proxies provide highest possible anonymity with the added benefit of forgetting getting blocked by desired sources.

Another important feature that most proxy service providers offer, and it’s necessary for a travel fare website - specific location targeting. While there is a possibility to use other kinds of proxies for cost-cutting reasons, dedicated residential proxies are hands down the ones bringing the best results.

Visas for Non-Citizens Wishing to Start a Business in the United States

Regardless of where you live starting a business is a popular choice. In fact, it’s estimated that there are in excess of 100 million startups every year.

With this in mind, you may wonder why anyone would want to start a business in the United States if they aren’t a citizen. After all, the internet makes it possible to trade around the world from virtually any location.

However, the US economy remains the largest in the world, starting a business based in the US means access to the entire world; this isn’t always possible if you’re looking to start up in somewhere like China or Russia.
USA Visa for non-citizens

Getting Started

The good news is that you don’t have to be a resident or a citizen to start a business in the US, however, there are different rules and regulations that must be complied with. It’s advisable to speak to a specialist in non-citizen startups.

For example, you can own a business in the US, be a shareholder, or even a director, without even visiting the US. But, you can’t be an officer of the company or actually work without having a business visa.

In fact, there are several different business visas, you need to choose the one most appropriate for your situation:
·         B1 – short term, up to 6 months. You can’t sign contracts or work in the US.
·         B2 – Tourist visa, also for 6 months and you can’t work. Although you can negotiate.
·         E1 – Allows you to trade between the US and your home country, providing your country has a trade treaty with the US.
·     E2 – If you are a citizen of a treaty country you can visit the US to start work. It is temporary but renewable.
·   EB-5 – Only given if you’re investing between 500,000 and 1 million US dollars and hire 10 employees within 2 years. After 5 year probation, you gain permanent residence rights.
·         L1 – Grants the right of transfer for an employee from a foreign company to a US one. It’s only valid for a year and can be extended 3 times.
·         H1B – this is given if you have specialist labor skills and is valid for 3 years.
·         O1 – If you have extraordinary abilities you can get this visa for 3 years.
·         TN – Temporary work visa for 3 years but is not usable for self-employment.

In effect, if you’re looking to start a business as a non-US citizen, you’ll need E2 or EB5. However, you may find it useful to gain B1, B2, or E1 beforehand to help establish the company.
It’s worth noting that an E2 visa will give you the right to reside in the US but you may need to keep an address outside of the US as well.

You can’t just apply for a visa without having adequate funding. The US will expect you to demonstrate and invest enough funds to support the business and give it a reasonable possibility of success.

You may be asked to show that these funds are irrevocably committed to the business and your potential profitability.

Tuesday, May 28, 2019

How To Disable Autocorrect On Android

Autocorrect on an Android phone is a comfortable and modern feature, but at times, it can be frustrating and annoying instead of being helpful.
Depending on the way you write, the prediction of your words can be off point and that can simply prolong an easy task.
Fortunately, Autocorrect is not a must. You can just deactivate it.

What Are The Benefits Of Disabling Autocorrect?

There are advantages to turning Autocorrect off. It could be that you are always typing several names or that your preferred, latest vernacular is one that Android’s built-in dictionary knows nothing about yet. All this and more can render Autocorrect useless.
Disabling Autocorrect is also useful if you are comfortable with 2 languages and repeatedly switch between languages as you type.
keyboard autocorrect

How Can I Disable Autocorrect On Android?

Autocorrect settings are specific to every keyboard software or application you use, which includes the default Gboard. Even if the autocorrect options are deep in a keyboard’s settings, every keyboard can be used from the same sub-menu.
For the sake of this tutorial, we will use Gboard, but you should be aware of where you need to diverge if the keyboard you intend to turn off is different.
Also note that when autocorrect is disabled, the default Android keyboard (Gboard) will continue to provide correction suggestions at the top of the keyboard, but it will not swap in a predicted correction when a space is added after a word. Rather, the word will be left anyhow it is typed by you.
  1.  Launch the Settings application.
  2.  Click System > Languages & input > Virtual keyboard.
  3. You will notice a list of every installed keyboard, which includes default installations. Click Gboard, or any keyboard you intend to disable autocorrect for.
  4. Click Text correction.
  5. Swipe down to the Corrections section and click Auto-correction to ensure it is toggled off.
  6. You are done.
That's how to disable autocorrect on android.

Wednesday, May 15, 2019

Infinix Hot S4 vs Xiaomi Redmi Note 7 – Which One to Buy?

Infinix recently launched the Hot S4 smartphone as a successor to their previous Hot S3 smartphone around the same time Redmi also entered the Nigeria Market with their recently released Redmi Note 7. Now, Both devices are within the same price bracket and if you’re in the market for a new smartphone within the range of N50,000 – N70,000 then chances are, you’ve narrowed your options to these two devices right. We will be taking a look at their specifications here in order to determine which one is worth buying.

Infinix S4 vs Xiaomi Redmi Note 7 – Design & Display

Infinix Hot S4
Infinix Hot S4 has a 6.26-inch HD+ display with a water drop notch housing the front facing camera while the Xiaomi Redmi Note 7 has a slightly bigger 6.3-inch display with also a water drop notch housing the front-facing camera. The Xiaomi Redmi back is made of glass with plastic frame all around as against plastic on the Infinix S4
Xiaomi Redmi 7
Infinix S4 has a triple camera at its back with a quad-LED flash while Redmi Note 7 has a dual rear camera setup with an LED flash. Infinix S4 comes in colours Red and Blue while Redmi Note 7 has Blue, Black and Twilight Gold colours. Infinix S4 has dual SIM slot and a dedicated slot for MicroSD while Redmi Note 7 has a Hybrid SIM card which means you can either use Two SIM cards or One SIM and a microSD card.

Infinix S4 vs Xiaomi Redmi Note 7 – Hardware & Software

Infinix Hot S4 makes use of a MediaTek Helio P22 SoC which has an octa-core processor clocked at 2.0GHz alongside a PowerVR GE8320 GPU for gaming with 3GB or 6GB of RAM and 32GB or 64GB as the available storage options. Storage can be expanded via the dedicated MicroSD card slot of up to 128GB.
Redmi Note 7, on the other hand, has a better Snapdragon 660 SoC which also has an octa-core processor clocked at 2.2GHz with an Adreno 512 GPU for graphics/gaming. It comes in three configurations which include 3GB/32GB, 4GB/64GB and 4GB/128GB with a possibility of taking up to 256GB via a MicroSD card.
Both the Infinix S4 and Xiaomi Redmi Note 7 runs Android 9.0 Pie out of the box. However, Infinix S4 will have their XOS UI on top and Xioami will also have their MIUI on top as well.

Camera, Battery & Connectivity

Infinix Hot S4 has a triple rear camera consisting of a 13MP + 8MP + 2MP camera combination with a quad-LED flash and a single 32MP camera at the front for selfies. Redmi Note 7, on the other hand, has just rear cameras; a 48MP main sensor and a secondary 5MP depth sensor camera. As for selfies, the Redmi Note 7 has a single 13MP front-facing camera.
Both the Infinix S4 and Hot 7 Pro have a 4,000mAh battery with a standard 10W fast battery charging on the Infinix S4 and an 18W (Quick Charge 4) fast battery charging on the Redmi Note 7. There is also 4G LTE connectivity here on both devices. Other features on both devices include but not limited to WiFi, WiFi hotspot, Bluetooth, GPS, a 3.5mm jack and of course, a microUSB port on the Infinix S4 and a USB Type-C on the Redmi Note 7 through which charging and file transfer are done. Redmi Note 7 also has an IR blaster which can be used to control other household appliances.

Infinix S4 vs Xiaomi Redmi Note 7 – Price

Infinix Hot S4 cost N49,900 for the 3GB/32GB configuration and can go as high as N64,500 for the biggest configuration with 6GB/64GB. Redmi Note 7, on the other hand, starts at N58,000 for the based model with 3GB of RAM and 32GB of storage. The bigger 4GB/64GB configuration goes for N66,900 while doubling the storage (4GB/128GB) will increase the price to N75,000.
Personally, I’ll opt for the Redmi note 7 as it is obviously better than the Infinix S4 but if you can’t afford to add the extra money for it then the Hot S4 will do just fine.

Saturday, May 11, 2019

How To Ensure Your PCB Project Doesn’t Go Over Budget

When you start a PCB design project and there are many designers working on it, it is really important that you set a budget that everyone needs to stick to. Sticking to the budget is often as easy as making sure that your design library is updated and maintained.

Here, we are going to give you some tips on how you can ensure your PCB project doesn’t go over budget. Keep reading if you’d like to find out more about this.
pcb project

Make Sure You Have A Single Library

Our first tip is to make sure that your PCB libraries are centralized in one single library. When you do this, you can be sure that the information is shared with your team and that they know what has been approved already. When you are setting up a single library, we suggest that you use standard life-cycle schemes and define a clear organisational structure.

Use a Starter Library

When you first start making your own components, you will find that it is very time consuming and this can lead to issues with going over the budget. For this reason, we suggest that you use a starter library of components that will allow you to use approved parts without too much hassle. This way, you’ll save some time and money along the way.

Use Online Integration

One of the most important ways that you can make sure that your project doesn’t go over budget is by making use of online integration and having up to date information on parts. You’ll need to be in regular contact with suppliers to ensure that your parts are within budget and that you can access them when you need to. Try to stay connected and this will help you to avoid going over budget.

Utilize Footprint Creation

Our final tip for those who want to make sure that they stay within their project budget is to utilize footprint creation tools on the PCB design software. You’ll find that it can take a long time to create an accurate library of footprints that include all of the important details that you’ll need. For this reason, we suggest using a wizard that can do this for you and you won’t need to waste time or money finding the information from third-parties.

Final Verdict

There are many ways that you can save some cash on your PCB design project including making sure that you have a component library that can do its job correctly. Make sure that you have one centralized library that all of your designers and your librarian can access in order to reduce time spent on the project and stick within your budget.

Make sure to take on board all of the tips that we have given you in this article and you should be able to stick within your budget and still get your PCB design project completed on time.

Friday, May 3, 2019

Compare Infinix Hot 7 Vs Hot 7 Pro – Price and Specs Differences

Infinix Hot 7 was released not long ago with a pro version packing some little extra features. However, on the outside, both devices look somewhat identical in terms of design and can often be mistaken for one another. Here, we will be detailing their similarities as well as their differences. Without further ado, let’s get started.

Key upgrades on the Hot 7 Pro

  • 4G LTE
  • Android 9.0 Pie with XOS 5.0 Cheetah
  • Upgraded Octa-core MediaTek MT6757 Helio P20 / MT6762 Helio P22
  • Dual Front camera
  • Up to 3GB RAM/32GB ROM

Infinix Hot 7 Vs Hot 7 Pro – Design & Display

Infinix Hot 7 and Hot 7 Pro have the same design and display. Both devices are sporting a 6.2-inch IPS LCD display with screen resolution of 720 x 1440 pixels on the Hot 7 and 720 x 1520 pixels on the Hot 7 Pro. Both of which uses a 19:9 aspect ratio with a notch that houses the front-facing cameras. Both devices are made of plastic and have the usuals; Volume buttons, Power button, a micro USB port in between the speaker grill and 3.5mm jack.
Infinix Hot 7 Pro specs
Infinix Hot 7 weighs 155grams, measures 8.4mm in thickness and comes in Black, Purple and Gold. Hot 7 Pro, on the other hand, weighs 174grams, measures 8mm in thickness and has Grey, Black and Gold as its colour options. Both devices have a dual SIM card slot with a dedicated MicroSD card slot for additional storage.

Infinix Hot 7 Vs Hot 7 Pro – Hardware & Software

Infinix Hot 7 uses a MediaTek MT6580P SoC which has a quad-core processor clocked at 1.3GHz paired with a Mali GPU for gaming. This is connected to either 1GB or 2GB of RAM, depending on the configuration you go for, and will have 16GB of internal storage which can be expanded further via the MicroSD card slot onboard. The 1GB Variant runs Android 8.1 Oreo Go Edition. Regardless of the OS, both device will be covered with Infinix XOS 4.0 Honeybee UI.
Hot 7 Pro, on the other hand, has two different models. The first one has an octa-core MediaTek MT6757 Helio P20 SoC with a clocking speed of up to 2.3GHz paired with 2GB of RAM and 32GB of storage. The second one has a MediaTek MT6762 Helio P22 SoC which also has 8 cores but clocks lower at 2.0GHz with 3GB of RAM and 32GB of storage. Storage is expandable on both models of up to 128GB. They also run the latest Infinix XOS Skin; XOS 5.0 Cheetah which is based on Android 9.0 Pie.


This is another area where the Hot 7 Pro is differentiated from the base model. while there are three cameras on the Hot 7, the Hot 7 Pro has a total of four cameras.
The Hot 7 has a dual rear camera consisting of a 13MP main sensor with an f/1.8 aperture, a dual-LED flash and a secondary 2MP depth sensor. For selfies, there is a front-facing 8MP camera with an f/2.2 aperture.
Hot 7 Pro on the other hand also has a dual rear camera consisting of a 13MP main sensor with an f/1.8 aperture and a secondary 2MP depth sensor camera for portrait shots. It also has a dual-LED flash for low light shots.
For selfies, there is a dual camera at the front as well. This is made of up a 13MP main sensor and a secondary 2MP wide angle lens.

Battery & Connectivity

Both the Infinix Hot 7 and Hot 7 Pro have a 4,000mAh battery with no fast charging so refilling might take some time. There is also no 4G LTE connectivity on the regular Hot 7 while the Hot 7 Pro is equipped with 4G LTE capability.
There is WiFi, WiFi hotspot, Bluetooth, GPS, a 3.5mm jack and of course, a microUSB port through which charging and file transfer are done.

Infinix Hot 7 Vs Hot 7 Pro – Price

Infinix Hot 7 is priced between N35,000 – N40,000 depending on the configuration you’re going for while the Hot 7 Pro costs within N45,000 – N50,000 and also depends on the configuration.