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DIY Countdown Timer

EFY Bureau
Sometimes there is a need to switch on or off electrical appliances or gadgets after a predetermined time. The circuit presented here can switch...

Learning Corner: Arduino Timers

EFY Bureau
In this video, the presenter will show you how to use the timer of a microcontroller (Arduino Uno -- ATmega328P) to not only create...

Arduino Based Digital Capacitance Meter: An Interrupt Based Approach

EFY Bureau
Capacitive sensors are widely used to measure various physical and chemical process parameters such as displacement, acceleration, thickness, force, pressure, stress, level and humidity....

Auto-reversible DC Motor with Speed and Rotation Control

EFY Bureau
DC motors are widely used in different machines, mechanisms and motion controls in manufacturing and processing industries. In these machines, it is often required...

Ethernet Interface for Automation Systems

EFY Bureau
Communication with remotely located automation systems is possible via the Internet. A physical communication port with a network is required for this communication. An...

Secured Room Access System

EFY Bureau
Security is a prime concern in our day-to-day life. And access control system forms a vital link in a security chain. The microcontroller based...

Cellphone Operated Land Rover

EFY Bureau
Conventionally, wireless-controlled robots use RF circuits,which have the drawbacks of limited working range, limited frequency range and limited control. Use of a mobile phone...

Arduino-based Line Frequency Meter Based on Reciprocal Counting

EFY Bureau
Precise measurement of line signal frequency is very important in many applications, especially in the management of power grid systems. Tasks like calibration of...

Weight Machine

EFY Bureau
Eight years back I purchased a small bathroom scale from @Home ,Mumbai and it cost me a good amount of money then. It's a...

Wireless Control Of Servo Motor

EFY Bureau
I made my first robot when I was in college and always thought to make totally wireless. So the same I thought about making...
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