- DTMF Controlled Robot: This simple DTMF based Cellphone
controlled robotic vehicle circuit is designed without using microcontroller
and is used in industries and surveillance systems.
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- Bluetooth Controlled Home Appliances: This circuit
explains you how to control the electrical appliances using an Android
device. Here, Bluetooth module is interfaced to 8051 microcontroller. This
Bluetooth receives the commands from the Android application device using
wireless communication.
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- Metal Detecting Robot: Here, we use a metal detection robot which
works on RF technology. Land mines buried under the ground causes threat to
the lives and affect the economy of the nation. Detection and removing of
these mines manually is a dangerous task.
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- Password based Circuit Breaker: This password
based circuit breaker project is built using 8051 controller and is used to
switch off the power supply to the line by entering a password.
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- Auto Intensity Control of Street Lights: This is a
simple circuit that automatically controls the intensity of street lights
which is designed using microcontroller and LEDs.
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- Line Following Robotic Circuit using Microcontroller: This line
follower robot is a basic robot that follows a specific path indicated by a
line having some particular width.
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- Contactless Digital Tachometer using 8051 Microcontroller: Here we
designed a simple non contact tachometer using microcontroller which can
measure speed with an accuracy of 1 rev/sec.
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- Density Based Traffic Signals using Microcontroller: In this
system, we use IR sensors to measure the traffic density. We have to arrange
one IR sensor for each road; these sensors always sense the traffic on that
particular road. All these sensors are interfaced to the microcontroller.
Based on these sensors, controller detects the traffic and controls the
traffic system.
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- Automatic Railway Gate Controller with High Speed Alerting System: The main aim
of this project is to operate and control the unmanned railway gate in the
proper manner in order to avoid the accidents in the unmanned railway
crossing.
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- Water Level Controller using Microcontroller: Here we are
designing the circuit which is used to detect and control the water level
automatically in overhead tank using 8051 microcontroller. It is used in
industries to control the liquid level automatically.
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- Solar Battery Charger: This is a simple circuit to charge 6V,
4.5Ah rechargeable Lead-acid battery from the solar panel. This solar charger
has current and voltage regulation and also has over voltage cut off
facilities. This circuit may also be used to charge any battery at constant
voltage because output voltage is adjustable.
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- Car Battery Charger: This article aims to describe the principle of operation,
design and working of a simple car battery charger from AC mains supply and a
feedback control section to control the battery charging.
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- Battery Level Indicator: This article explains you how design
battery level indicator. You can use this circuit to check car battery or
inverter. So by using this circuit, we can increase the lifetime of battery.
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- FM Radio Circuit: FM Radio circuit is the simple circuit that can be tuned to
the required frequency locally. This article describes the circuit of FM
radio circuit. This is a pocket sized radio circuit.
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- Speed Control of DC Motor using Pulse Width Modulation: This pulse width modulation technique is the more
efficient way to proceed to manage the speed of our DC motor manually.
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- Sun Tracking Solar Panel: This article describes about circuit that
rotates solar panel. This Sun tracking solar panel consists of two LDRs,
solar panel, stepper motor and ATMEGA8 Microcontroller.
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- Bidirectional Visitor Counter using 8051: This
Bidrectional Visitor Counter Circuit is helpful to count the number of
persons entering or leaving a room and to display it on a screen.
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- Biometric Attendance System: The main aim of this circuit is to take
the attendance using biometric method and display when requested. This can be
used in educational institutions, industries, etc.
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- LED Lamp using USB: This is a simple USB LED Light circuit which produces an
output of 5v. It may be used as emergency light and also as a reading lamp.
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- Water Level Indicator: This Water Level Indicator project employs
a simple mechanism which helps to detect and indicate the water level in an
overhead tank or any other water container. It can be used in Hotels,
Factories, Homes Apartments, Commercial Complexes, Drainage, etc.
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- Password Based Door Lock System: This system demonstrates a password based door lock
system wherein once the correct code or password is entered, the door is
opened and the concerned person is allowed access to the secured area. After
some time, the door would be closed. Read this post completely to get more information.
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- Human Detector Robot using Microcontroller: The main
principle of the circuit is to detect the human using human detection sensor.
The wireless robot is operated manually using PC. The wireless technology
used here is Radio Frequency technology. The data is transmitted to receiver
through RF.
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- GSM Controlled Robot: GSM controlled robot or SMS controlled robot is a wireless
robot which per
forms the necessary actions by receiving a set of instructions
in the form a Short Message Service (SMS).
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- Temperature Controlled DC Motor using Microcontroller: The main
principle of the circuit is to switch on the fan connected to DC motor when
the temperature is greater than a threshold value.This can be used in home
applications and in cpu to reduce heat.
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- Water Level Alarm Using 555 Timer: This is a
simple and low cost hardware project using a 555 timer circuit. The aim of
this project is to design a water level detecting alarm with simple and low
cost hardware without compromising on the performance of the device.
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