Software Testing

UI Automation using Appium and WinAppDriver

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Introduction to Appium Appium is an open source cross platform test automation framework for use with native, hybrid and mobile web apps. It drives iOS, Android, and Windows apps using the WebDriver protocol. Platforms supported are:  iOS Android Windows FirefoxOS Step 1: Installing Appium in Windows machine Install latest nodejs from https://nodejs.org/en/ Open command prompt and […]

How-To

Raspberry pi as print server

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Making Raspberry pi as print server will help you in making your printer wireless. What you need ? Raspberry pi USB wireless dongle. USB Printer I am assuming that you have already setup raspberry pi with suitable OS.  Make sure that is is updated to latest version. To do so follow the following commands. sudo […]

Electronics

How to make digital clock using Arduino and DS1302

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To make a digital clock using Arduino and DS1302 we need following materials. Arduino UNO ( you can use any arduino) 16*2 LCD display DS1302 module/chip 1.2 k resistance Variable resistance 10k Pot Make the connections as mentioned below: Connecting the LCD: VSS –> GND Arduino VDP –> 5V Arduino VO –> output potentiometer (potentiometer […]

Electronics

Top 8 Post of 2017

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Summarizing the year with top post of the year 2017 Optimize Azure cost using automation account How to Install Linux Bash shell on Windows 10 UI Automation using Appium and WinAppDriver   How to Measure DevOps Success? Home Automation using Arduino UNO How to set-up Wireless on your Raspberry Pi Web server on raspberry pi […]

Electronics

How to make a Tachometer for bicycle

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To make a tachometer for bicycle tachometer we will be using Arduino and reed switch as the main component. We will design the tachometer to Display Speed and also temperature. Following are the list of components required. Parts list: Arduino Bicycle with reed switch LCD display 16×2 thermometer DS18B20 Servo resistor 1.2k Ω , 4.7k […]

Electronics

Home Automation using Arduino UNO

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In this post we will be designing home automation using Arduino UNO and IR remote control device. Components Required Arduino UNO board TSOP 1738 IR Remote Control Receiver 1 KΩ Resistor X 4 2N2222 NPN Transistor X 4 1N4007 Diode X 4 12 V Relay X 4 – relay board Remote Control Prototyping board (Bread […]

Electronics

Time delay relay circuit

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What is a time delay relay circuit? In a time delay relay circuit, relay contacts are closed or open after the preset time interval. Whereas in a normal relay contacts are open/closed immediately when coil is energized. It prevents the damaging effect of voltage spikes or input surge current by delaying the relay on/off. Schematic […]

Electronics

1 Watt audio amplifier for Mobile device

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About LM4890 1 Watt audio amplifier for mobile device has been designed using LM4890 power amplifier. LM4890 is primarily designed for mobile phones and other portable devices. It is capable of delivering 1 watt of continuous average power to an 8 ohm load from 5v power supply. It has a distortion of less than 1%. […]