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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.

How to use 16×2 LCD with Raspberry Pi using Python

In this post we will connect the LCD to GPIO (General Purpose Input Output) pins of PI to display characters on it. We will write a program in PYTHON to…

  • July 28, 2021
  • Electronics, How-To
Read MoreHow to use 16×2 LCD with Raspberry Pi using Python

How to setup 3.5 inch touch screen on Raspberry Pi

Introduction In this post I will help you in installing and configuring the LCD touch screen on Raspberry Pi. Most LCD touch screens come with an OS image that you…

  • September 16, 2022
  • Electronics, How-To, Raspberry Pi
  • 6 Comments
Read MoreHow to setup 3.5 inch touch screen on Raspberry Pi

Hack ATX Power supply into a DC Power Power supply

In this post we will HACK ATX power supply to use it as a bench top power supply which can be used for different electronics projects. Parts needed An ATX…

  • January 13, 2026
  • Electronics, How-To, Project
Read MoreHack ATX Power supply into a DC Power Power supply

How to make your own relay module

What is a relay? A relay in an electromagnetic device that is activated by a low voltage ranging from 3-12 v. When the electromagnet is activated it pulls a contact…

  • September 2, 2018
  • Electronics, How-To
Read MoreHow to make your own relay module

How to save money using Recurring deposit

In this post I will explain you on how you can save money using recurring deposit. Most of you might have some or the other Insurance for which you pay…

  • March 30, 2025
  • How-To, Misc
Read MoreHow to save money using Recurring deposit

How to use Azure IOTHub – Part 2

Introduction In the previous part we have seen how to configure Azure for IOTHub. In this post we will cover setting up the Raspberry Pi and connecting it to the…

  • January 13, 2026
  • Electronics, IOT, Project
  • 6 Comments
Read MoreHow to use Azure IOTHub – Part 2

How to use Azure IOT Hub – Part 1

Introduction In this part we will cover how to configure Azure IOT hub and make it ready for using it with Raspberry Pi or ESP8266 boards. Things that you Need…

  • January 13, 2026
  • How-To, IOT, Project, Tutorials
Read MoreHow to use Azure IOT Hub – Part 1

How to measure Humidity and Temperature using DHT22 and Arduino

In this project we will learn to measure Humidity and temperature using DHT22 and Arduino. There are 2 version of the sensor DHT11 and DHT22. DHT22 sensor is more expensive…

  • January 13, 2026
  • Electronics, How-To, Project
Read MoreHow to measure Humidity and Temperature using DHT22 and Arduino

Pocket size FM receiver

Below is the circuit idea for pocket size FM receiver using RF transistors. The circuit works off a small 4.5 volt battery or 5v USB. The heart of the circuit…

  • July 4, 2025
  • Electronics
Read MorePocket size FM receiver
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