There are various fields of engineering, electrical and electronics engineering (EEE),
electronics and communication engineering (ECE), computer science
engineering (CSE), and so on. The project work is part of the
engineering course academics which will help the students to gain
practical knowledge and also hands on experience. If we consider EEE branch and ECE branch, then the project work may include designing electronics projects with electronics circuits.
Electronic Circuits
The connection of various electrical and electronics components using
connecting wires on a breadboard or by soldering on PCB to form
circuits which are termed as electrical and electronic circuits. In this
article, let us discuss about a few simple electronics projects for
beginners which are built with simple electronic circuits.
Simple Electronic Projects for Beginners
There are several numbers of simple electronic projects for beginners that include DIY projects (Do It Yourself), solderless projects, and so on. The solderless projects
can be considered as electronics projects for beginners as these are
very simple electronic circuits. These solderless projects can be
realized on a breadboard without any soldering, hence, termed as
solderless projects.
Simple Electronic Circuits for Beginners
Simple Electronic Circuits for Beginners
Night light sensor, overhead water tank
level indicator, LED dimmer, police siren, touch point based calling
bell, automatic toilet delay lighting, fire alarm system, police lights,
smart fan, kitchen timer, and so on are a few examples of simple electronic circuits for beginners.
Smart Fan
The fans are frequently used electronic
appliances in residential homes, offices, etc., for ventilation and for
avoiding suffocation. This project is intended for reducing wastage of electrical energy by automatic switching operation.
Smart Fan Circuit
The smart fan project is a simple
electronic circuit that gets switched ON when a person is present in the
room and a fan gets switched OFF when a person leaves the room. Thus,
the amount of electrical energy consumed can be reduced.
Smart Fan Circuit Block Diagram
The smart fan electronic circuit
consists of an IR LED and photo diode used for detecting person. A 555
timer is used to drive the fan, if any person is detected by IR LED
& photo diode pair, then the 555 timer gets actuated.
Night Sensing Light
Night Sensing Light
The night sensing light is one of the simplest electronic circuits to design and is also most powerful circuit to save electrical power
by automatic switching operation of the lights. The most commonly used
electronic appliances are lights, but it is always difficult to operate
them by remembering.
Night Sensing Light block diagram
The night sensing light circuit will
operate the light based on the light intensity falling on the sensor
used in the circuit. The light dependent resistor (LDR) is used as a light sensor in the circuit which automatically turn ON & OFF the light without any support of human.
LED Dimmer
LED Dimmer
The LED lights are preferable as they
are most efficient, long life and consumes very low power. The
dimmability feature of LEDs is used for various applications such as
intimidating, decorating, etc.,. Even though LEDs are being designed for
dimmablilty but to obtain better performance LED dimmer circuits can be
used.
LED Dimmer Block Diagram
The LED dimmers are simple electronic circuits designed using a 555 timer IC,
MOSFET, adjustable preset resistor and high power LED. The circuit is
connected as shown in the above figure and brightness can be controlled
from 10 to 100 percent.
Touch Point based Calling Bell
Touch Point based Calling Bell
In our day-to-day life, we typically use many simple electronic circuits such as calling bell, IR remote control
for TV, AC, etc., and so on. The conventional calling bell system
consists of switch to operate and which creates buzzer sound or
indicator light on.
Touch Point based Calling Bell block diagram
The touch point based calling bell is an
innovative and simple electronic circuit designed for replacing the
conventional calling bell. The circuit consists of touch sensor, 555
timer IC, transistor and buzzer. If the human body touches the touch
sensor of the circuit, then a voltage developed on touch plate is used
for triggering the timer. Thus, the 555 timer output goes high for a
fixed time interval (based on the RC time constant). This output is used
to drive transistor which in turn triggers the buzzer for that time
interval and turns OFF automatically after that.
Fire Alarm System
Fire Alarm System
The most essential electronic circuit for residence, office, every place in which there is a possibility of fire accidents
is a fire alarm system. It is always difficult even to imagine a fire
accident, so the fire alarm system helps to extinguish the fire or
escape from fire accidents to reduce human loss and property loss as
well.
Fire Alarm System block diagram
The simple electronic project built
using LED indicator, transistor and thermistor can be used as fire alarm
system. This project can be used even for indicating high temperatures
(fire causes high temperatures) such that the cooling system can be
turned ON to reduce the temperature to limited range. The thermistor (temperature sensor)
is used for identifying changes in temperature and thus alters the
transistor input. Thus, if the temperature range exceeds the limited
value, then the transistor will turn ON LED indicator to indicate high
temperature.
Similarly, there are numerous simple electronic circuits
which we use in our day-to-day life and all these can be designed by
yourself with a little guidance. Are you interested to know about latest
electronics projects
for beginners? For any technical help in developing projects, get in
touch with us by posting your ideas, views, comments, and suggestions in
the comments section below.
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