How to delete post revisions in WordPress blogs?
WordPress comes with a built-in feature that allows you to undo changes and go back to a previous version of a post. This feature is called Post Revisions or simply…
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
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Weather station using NodeMCU and OLED display
Introduction This weather station using NodeMCU uses open weather api from openweathermap.org. Parts required for this project NodeMCU OLED I2C display Some wires and USB data cable 5v v battery…
Square wave oscillator
What all are required? You would need following parts build the above circuit. C1 – 10 u C2 – 1u C3 – 100n C4,C7- 10n C5 – 1n C6- 100n…
Arduino clock using RTC module and 7 Segment display
Introduction In this arduino clock project we are displaying time on 7 segment tube display. Unlike other posts where I had used lcd display. Tube display board uses TM1637 chip. …
How to use OV7670 camera module with Arduino
Introduction to OV7670 camera module The OV7670 image sensor is a small size, low voltage, single-chip VGA camera and CMOS image processor for all functions. It provides full-frame, sub-sampled or…
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…
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…
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…
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…