Electronics Projects

In this category posts about electronics projects will be available. In that posts, i will design some circuit and explain the working of that circuit.

IoT in home automation (Internet of things for home automation)

In this project, I will explain to you how you can use IoT in home automation. I have decided to make a home automation system. Using this automation system, you can control the appliances in your home using a web interface from anywhere in this world. This system will show us the current status of …

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Arduino calculator with LCD and keypad

Arduino calculator with LCD and keypad

Introduction In this project, you will learn to design a calculator with the help of Arduino, 4×4 calculator keypad, and i2c LCD. I have already discussed how i2c LCD works with Arduino in one of my previous articles. In this project, you will learn more advanced Arduino coding and a lot of other things. So …

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6 i2c LCD with Arduino

I2C LCD for Arduino with code and working explanation

I2C or IIC has become more popular nowadays for short-distance communication. I2C stands for the inter-integrated circuit. You can know it also as a two-wired interface (TWI) because you can communicate with various devices using just two wires. This two wires bus is used for serial communication between host and slave devices. Philips Semiconductor developed …

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16×2 LCD with Arduino: Code and circuit

Till now we were using a serial monitor to print the messages from Arduino. But now, we will use a 16×2 character LCD to print the messages. Here 16×2 means we can print 2 lines of 16 characters long. In this project, we will look at how we can interface a 16×2 LCD with Arduino …

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AC voltage drop formula and AC dropper circuit

Often in many project you need to have a mains power supply. Let’s say you are doing home automation project, you need to power the circuit using AC supply. Because battery is an appropriate option in that project since you need to fit the circuit in electric board of your home. So we have to …

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Class D amplifier explained

There are many types of amplifier. Class D amplifier is a type of them. It is very efficient amplifier (efficiency is up to 90-95%). This amplifier works on PWM technique. Audio signal applied to it first get converted into pulse width modulated signal and then it is amplified efficiently. After amplification it is converted back …

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Buck Boost converter working principle, Circuit and applications

Buck boost converter is a DC to DC converter. A DC to DC converter converts the voltage levels of DC sources. We call it DC to DC converter because it take DC voltage as input and gives also DC voltage as output. I have published two separate project articles on buck converter and boost converter …

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Arduino sine wave generator in Proteus

Arduino sine wave generator

As we know that Arduino is a digital device and doesn’t have the DAC (digital to analog converter). So, basically, it cannot generate a sine wave. But it has some PWM pins by which we take analog output by using the analogWrite function. In this project, we will discuss whether we can generate a sinewave …

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LM317 variable voltage regulator module

Linear voltage regulator and its application

To maintain steady output voltage from any power source we use linear voltage regulator. The circuits or devices which are very sensitive to voltage change uses this devices. Its resistance vary according to voltage and load attached to it. You can think it as a voltage divider circuit whose resistor can vary itself automatically according …

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boost converter module

Boost converter circuit and its application

Boost converter is a DC to DC step up converter. That means it converts any DC voltage to higher DC voltages. It doesn’t affect power much more so current will step down. Let’s say that we have 3.7 volts battery and we want to power a 5 volts device. In that case we need boost …

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