In recent years, cells and batteries—especially cells—have become available in many different sizes and shapes besides the old cylindrical cells, transistor batteries and lantern batteries. In this article, you will learn about three types of miniature cells and batteries. … [Read more...] about Miniature cells and Batteries – Silver Oxide, Mercury and Lithium Cells
Microcontroller
Arduino DC Digital Voltmeter
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of … [Read more...] about Arduino DC Digital Voltmeter
What is Ladder Diagram and How to Draw a Ladder Diagram?
This is a continuation of the previous article (Introduction to PLC Ladder Programming) in PLC Programming series. Please go through an introduction to Ladder Programming before reading this post. In this post, we will about the what is a ladder diagram and how to draw a ladder … [Read more...] about What is Ladder Diagram and How to Draw a Ladder Diagram?
Introduction to PLC Ladder Programming
We have already discussed the introduction to programmable logic controllers. Please go through it before reading this. In this article, we will give you a brief introduction to programming PLC using the ladder diagram. Programs for microprocessor-based systems have to be loaded … [Read more...] about Introduction to PLC Ladder Programming
Types of ROM | PROM, EPROM, EEPROM, Flash EPROM & Mask ROM
What is ROM? ROM stands for Read-only Memory. It is a type of memory that does not lose its contents when the power is turned off. For this reason, ROM is also called non-volatile memory. Because ROMs are deployed in such a wide variety of applications, there are … [Read more...] about Types of ROM | PROM, EPROM, EEPROM, Flash EPROM & Mask ROM
Controlling a Servo Motor with Arduino
A servomotor is also defined as a rotary actuator that allows for very fine control of angular positions. This article explains controlling a servo motor with Arduino in detail. Many servos are widely available and quite cheap. Servos can drive a great amount of current. This … [Read more...] about Controlling a Servo Motor with Arduino
Electric Potential, Potential Difference and EMF
In this article, you will study what are electric potential, the potential difference (PD) and electromotive force (emf) and the difference between them. Just as a body raised above the ground has gravitational potential energy, similarly, a charged body has electric potential … [Read more...] about Electric Potential, Potential Difference and EMF
Arduino based Automatic Light Controller
The automatic light controller offers energy saving and convenience in the areas with a photosensor (LDR). LDR senses the ambient light conditions in the surrounding area and switches ON-OFF the lighting load. The darkness level in the surrounding is settable. It is in-built … [Read more...] about Arduino based Automatic Light Controller