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Digital Lab

A home to software testing, electronics circuits & projects, tips and tricks and digital diary.

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Digital Lab

A home to software testing, electronics circuits & projects, tips and tricks and digital diary.

Home Automation using Arduino UNO

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…

  • November 19, 2017
  • Electronics, How-To
Read MoreHome Automation using Arduino UNO

Optimize Azure cost using automation account

Azure VM cost whenever it is up and running. There are times when you are not using the VMs and can be taken down to reduce the cost. This step can be automated and eventually optimize Azure cost buy shutting…

  • May 2, 2018
  • Misc, Software Testing, Tutorials
Read MoreOptimize Azure cost using automation account

How to set-up Wireless on your Raspberry Pi

Step 1: Configuring WLAN Connection Connect you USB Wifi adapter to your Raspberry Pi. Also, ensure that you are already connected to Ethernet cable. Boot your Pi int GUI and open the terminal window. Either directly on the Pi or…

  • September 16, 2022
  • How-To, Linux, Raspberry Pi
Read MoreHow to set-up Wireless on your Raspberry Pi

Time delay relay circuit

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…

  • August 19, 2017
  • Electronics
  • 1 Comment
Read MoreTime delay relay circuit

1 Watt audio amplifier for Mobile device

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…

  • August 9, 2017
  • Electronics
  • 1 Comment
Read More1 Watt audio amplifier for Mobile device

Real time clock with DS1302

Real time clock with DS1302 is designed using Arduino Uno. About DS1302 The DS1302 is a trickle-charge timekeeping chip containing a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple serial interface. The…

  • July 23, 2021
  • Electronics
Read MoreReal time clock with DS1302

How to Install Linux Bash shell on Windows 10

Latest windows update allows you to have a full Ubuntu-based Bash shell. This allows you to run the Bash shell and the exact same binaries that you would normally run on Ubuntu Linux. To get started with bash make sure…

  • April 24, 2021
  • How-To, Linux
Read MoreHow to Install Linux Bash shell on Windows 10

Seven segment display counter

A seven segment display is typically used to display numbers from 0-9. It consists of 7 bar segments and a dot( 8 Segments). They are numbered A to F and DP for the dot or decimal place. There are 2 types…

  • June 26, 2017
  • Electronics
Read MoreSeven segment display counter

Web server on raspberry pi – how to setup?

Introduction In this post I will let you know how to set up web server on raspberry pi. There are many web servers for raspberry pi. In out example we will be setting up apache web server. Apache is a…

  • September 16, 2022
  • How-To, Raspberry Pi
Read MoreWeb server on raspberry pi – how to setup?

Plus/minus supply using LMC7660

LM 7660 is a CMOS voltage convertor capable of converting a positive voltage in the range of +1.5 v – 10 v to the corresponding negative voltage of -1.5v to -10v using very few external components. Below is the schematic…

  • May 25, 2017
  • Electronics
Read MorePlus/minus supply using LMC7660
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  • Electronics
  • How-To
  • IOT
  • Linux
  • Misc
  • Photography
  • Raspberry Pi
  • Software Testing
  • Tutorials
  • Youtube Video

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