Apart from small calculators, which can be used to perform simple arithmetic calculations, calculators also come in complex scientific outlook that can perform various mathematical and statistical operations like trigonometry, algebra, calculus, etc. But such complex scientific calculators can be very costly. In this project, we will design a simple arithmetic calculator using Arduino UNO, a 16 x 2 LCD display and 4 x 4 Matrix Keypad. Circuit Diagram Components Arduino UNO [Buy Here] 16 x 2 LCD Display [Buy Here] 4 x 4 Matrix Keypad Module or 16 Push buttons 10 KΩ Potentiometer Bread board ( Prototyping board ) Connecting wires...

These relays provide a “Time Delay” between the energizing or de-energizing of the coil and movement of the armature. Such relays are called Time Delay Relays. A Time Delay Relay consists of a normal electromechanical relay along with a control circuit to control the relay operation and timing. The main difference between a regular relay and a time delay relay is that in case of a normal relay, the contacts are close or open immediately when the coil is energized or de-energized while in case of time delay relay, the contacts are close or open only after the preset time interval....

Well, you can easily enable dark mode for Google Docs when you use it on your Android, iPhone, IPad, or Chrome. With having dark mode enabled for your docs, it will make it easy for you to use your device in dim light or at night. Many people switch to the dark mode just because they need some change. While some believe that using dark mode helps in reducing eye strain....

Although, in some cases, you may face an issue where Ethernet is not working in Windows 10. Since this can be quite frustrating because you cannot access the internet or your local network, we are here with a complete What is Ethernet not Working in Windows 10? In case you have faced the Ethernet not working in Windows 10 issue for the first time, you may want to know more about it....

Generally, the files are safe, and you can download them without any issues if you know that a trusted source shares the file. If a virus is detected, users cannot convert the infected file to a Google Doc, Sheet, or Slide, and they’ll receive a warning if they attempt these operations. The owner can download the virus-infected file, but only after acknowledging the risk of doing so. How to Scan Large Google Drive Files for Virus?...

Hence, even when the iPhone is ringing, they cannot pick up the phone as the screen is completely black. If you are facing the same issue, we will illustrate all the possible ways how to fix black screen problem on iPhone. What Causes An iPhone Screen To Go Black? Before understanding how to solve a problem, you have to understand the cause behind the problem. An iPhone screen can go black due to software as well as hardware issues....

Whatever be the reason, if you want your PC to run on Windows 10 system, we will be explaining how to do it in the simplest way possible. Hence, for those people who want to learn how to install Windows 10 on a PC using a USB bootable drive, this short and simple guide will explain every single bit of detail to you so that you can install Windows 10 on your computer without facing any complications or errors....

Need for I2C LCD The ESP8266 NodeMCU is a great development board for Wi-Fi related applications. Another advantage of this board is the GPIO Pins. After taking out all the dedicated GPIO pins (for SPI Flash IC and UART) we get around 9 GPIO Pins free to use. But what if you want to interface a 16×2 Character LCD Display with ESP8266 NodeMCU? Even in 4-bit Parallel communication mode, the 16×2 LCD will take up 6 GPIO Pins of the microcontroller (four for Data, one for RS and one for E)....

However, when you are going winter camping, the water in the pipes of the RV can freeze. A hard freeze can break down your RV. You may have to spend vast amounts of money on repairing the issue. That is why you should take some precautions to keep your RV pipes from freezing, especially when you are going winter camping. How To Prepare RV For Cold Camping? Here are the steps you need to take when you take your RV for winter camping so that there is no incident of freezing pipes and tanks....

Components Required 1-mic 1k 4.7k BC547 X2 470R 0.1uf X2 47k 100uf 330R 555 timers led 9v battery Circuit Diagram What is 555 Timer??? Basically, 555 timer is an 8-pin integrated chip which has capable of producing accurate time delays or oscillation. By connecting different values of resistor and capacitor to a 555 timer we can use it for countless applications. In simple, it was operating in 3 different modes Astable State “Here the output pulse was continuously switches the state(high – low)....

However, some carriers don’t allow you to turn off the voicemail feature that easily. But, since we are here to help, we will surely provide you with some methods that you can try out. The methods listed in the article will work on all iPhone devices, whether you are still using an iPhone 6, or have the latest iPhone 13 pro max in your hands, the methods will work for all....

However, there might be instances where you would need to turn off the defender. This is true if you are installing new software or a video game. Normally, you can disable Defender easily but it turns back on by itself after a restart. Therefore, it is better to find a way to disable it for good. In this article, we will be showing you some ways by which you can do so....

Steps to Stream Netflix on Switch There are basically two steps you have to take to stream Netflix on Switch. First, you have to set up the Nintendo Switch on your Android TV. Second, you have to install the Netflix app from Nintendo e-Shop. 1. Setup Nintendo Switch on your TV 1: Turn on Nintendo Switch Dock. 2: Connect HDMI cable from HDMI OUT point on Switch Dock to HDMI port on your TV....

The 4.5 inch display of Huawei Ascend Y530 carries 854 x 480 (FWVGA) pixels across it, which must render it fairly usable if not outright brilliant. The processor used is Snapdragon 200 dual core processor clocked at 1.2 GHz, which is quite obsolete now. RAM capacity is 512 MB and internal storage is ordinary 4 GB expandable using MicroSD card support. Imaging hardware includes 5 MP primary camera and a VGA front shooter which will be seldom used....

In this guide, I will walk you through the complete guide to Install, Setup, and Use Google Drive for Desktop to back up specific folders or all system library media files to Google Photos for Free. Google Drive for Desktop: How to Install Google Photos? Here is the Simple Guide to Install Google Photos on Old MacBook Air, MacBook Pro, and Latest Apple M1 Chip. How to Setup Google Photos for MacBook?...

Introduction Voice Recorder is a device that captures speech (or audio) in various situations like meetings, lectures, interviews, conferences, broadcasts etc. so that you can easily edit or play them back. There are different types of hardware and software dedicated to voice recording that provide several customization options. In this project, I will talk about one of the most commonly used Voice Recorder Modules in the electronics hobbyist community, the ISD 1820 Voice Recorder Module and show you how to control it with the help of Arduino....

The Intex Cloud X12 features a 3.5 inch Display with HVGA resolution and is powered by 1 GHz dual-core Spreadtrum 7710 processor. Ram capacity is 256 MB and the phone runs on Android 4.2 operating system. The battery capacity has a modest 1200 mAh capacity. The basic imaging hardware includes a 2 MP camera at the back and a VGA camera at the front. Surprisingly the phone supports 3G and Dual SIM connectivity....

The iPad Air comes with a 2048 x 1536 pixel 9.7 inch screen, a powerful Apple A7 chipset and a PowerVR G6430 graphics processor. Although the device has only 1GB of RAM, the iOS operating system uses it very efficiently and provides for a good multitasking experience. Among other highlights of the device, a major attraction is its minimal thickness, which at just 7.5mm makes it among the thinner tablets in the world....

What Are AC And DC? AC stands for alternating current, which is the streaming of electrons when they continuously alternate the direction. It was invented by Nicola Tesla and was used in the power transmission system. When it comes to DC, it stands for direct current. DC streams the electrons to a single direction. It was invented by Thomas Edison, and he used it for the first electric power transmission. Many batteries use DC power for various appliances like radios, laptops, and microwaves....

In this guide, we will see a little bit more about Snapchat Streak. We will also see what you can do about lost Snap Streak or if is there any way to get Snapchat Streak back. A Brief Note On Snapchat If you aren’t familiar with Snapchat, then it is a very popular instant messaging application, where users can send “Snaps” to their friends. Snaps can be anything from texts, photos, or videos....