It’s John Ambrose Fleming (1849-1945), a British engineer, who invented the first diode in 1904, in the form of an electron tube. Later, with the development of semiconductor technology, the diode became a dipole consisting of two substrates: one, rich in free electrons, and of type N, the other deficient in electrons, and of type […]
Working
DPDT Relay Working, Pinouts, Testing Explained
In this post we are going to understand about how this DPDT relay actually works, how we identify its pinouts, and how we can use it in our projects. We shall go step by step so that you can feel confident with every small thing about it. Introduction We know that a DPDT relay means […]
IC 555 Pin Description and Working [with Formulas]
In this post I have explained the how IC 555 works, its basic pinout working details and how to configure the IC in its standard or popular astable, bistable, and monostable circuit modes. The post also details the various formulas for calculating the IC 555 parameters. Introduction Our hobby world would be less interesting without […]
PIR Sensor Datasheet, Pinout Specifications, Working
In this post I am going to explain the datasheet of PIR or Pyroelectric Infrared Radial Sensor HC-SR501. We will understand for what purpose PIR sensor is used? Its basic trigger operations, pin connection details, technical specifications and finally we will be looking at some real life applications. We will begin by understanding the actual […]
IC 4026 Datasheet, Pinout Working, Application
IC 4026 is comprised of a 5-stage Johnson decade counter and an output decoder that transforms the Johnson code into a 7-segment decoded output to drive a single 7 segment numerical display. These devices offer significant advantages in display applications that prioritize low power dissipation and/or low package count. Both sides of IC 4026 have […]
IC 4027 Datasheet, Pinout Working, Application
The CD4027 is a dual J-K flip-flop IC with reset that can be used in a variety of digital logic applications. It has two independent flip-flops, each with a J and K input, a clock input, a reset input, and complementary Q and Q-bar outputs. The CD4027 operates on a wide range of supply voltages […]




