over voltage protection circuit diagram
Electronics tutorial Protection Circuits

Over Voltage Protection Circuit Diagram Based on Relay

In this tutorial, you will learn how to make this over-voltage protection circuit. It requires fewer components and is very effective in overvoltage conditions. It will cost you around 3$ to 5$ depending on the quality of components. Overvoltage occurs when the voltage in a circuit is raised above its upper design limits. This condition […]

Controlling Brightness of LED using Raspberry Pi 4
Electronics tutorial IOT Raspberry Pi Raspberry Pi IOT Projects

Controlling Brightness of LED using Raspberry Pi 4

Controlling the brightness of an LED or blinking it continually by passing various delays with PWM(Pulse Width Modulation) it might be your first Raspberry Pi 4 learning experience. In this article, we perform three activities which are Turning On & Off LED. Blinking it using PWM at different frequencies. Controlling the brightness of the LED. […]

Short circuit protection using LM358 OPAMP
Electronics tutorial Protection Circuits

Over Current/Short Circuit Protection Using LM358 OPAMP

This is an adjustable over-current and Short circuit protection using LM358 OPAMP. In this article, we will see how you can make short circuit protection using LM358 OPAMP. A short circuit occurs when the current flowing in a circuit bypasses the load and flows from a path having the least or zero resistance. We can […]

Short circuit protection using relay
Electronics project Electronics tutorial Protection Circuits

Short Circuit Protection Using Relay For Batteries

In this tutorial, we will see how to make a short circuit protection using Relay. Many times accidentally terminals of batteries and other power supplies get short-circuited. Due to this, they get hot and start degrading. In the case of lithium-ion or lithium-polymer batteries, they may catch fire due to short-circuit or even get blast. […]

Google assistant based home automation system
Electronics tutorial ESP32 Internet of things IOT

Google Assistant Based Home Automation System ESP32, Blynk & IFTTT

Control your home lighting and fans using this Google Assistant based home automation system. This is very easy to set up, simple to operate, and a cost-effective system for your home residence and even offices. You can operate it via google assistant, manual buttons, and Blynk application. What are the things required for our project: […]

Optocoupler circuit
Electronic devices Electronics components Electronics tutorial Integrated circuits (ICs)

What Are Optoisolators And Optocoupler, How They Work?

Optoisolators and Optocoupler sound very similar and they are the same in terms of workings and other features lets see what are optoisolators and optocoupler. There are some differences due to which they are given different names. Photocoupler is another name of the optocoupler. An optocoupler or photocoupler and an optoisolator are semiconductor devices that […]