RPM Counter Using Microcontroller AT89C4051
Counting the revolutions per minute (RPM) of motors—determining the motor speed— is essential in the field of industrial automation. It is useful especially for...
JOIN THE LED LIGHTING REVOLUTION
Light-emitting diodes (LEDs) produce a radically different type of lighting than what we are used to. Already in use in many architectural and commercial...
Automatic Fan Controller For Air-conditioners
Many central air-conditioning systems (ACs) have the option for cooling and heating both. These have a fan for blowing hot or cold air drawn...
SMPS Spark Suppressor
This circuit protects the power plug of a switched-mode power supply (SMPS) against sparks that may damage its contact terminals. It normally happens when...
Security Alarm
Thwart any attempt of burglary in your house using this alarm circuit. When someone opens the door of your room, it sounds an alarm...
Dual-Tone Horn
This circuit generates two different frequencies and mixes these to produce a balanced ringing tone, which can be used in burglar alarms or call...
LAPTOP AUDIO AMPLIFIER
Usually, the audio output from a laptop’s built-in speakers is low. A power amplifier is required to get a high volume. Here is a...
“Our chip has the highest Computing Power Density”
Today, the mobile Internet is providing unprecedented opportunity to include more than two-thirds of the world’s population into main-stream services, such as banking, health-care,...
“Energy Efficiency is our strategic differentiator”
Applied Materials, Inc. is the global leader in providing equipment, services and software to enable the manufacture of advanced semiconductor, flat panel display and...
Interfacing A Graphics LCD With The Microcontroller
Today, most of the electronics devices come with a liquid crystal display (LCD). Even new fridges have it. It is interesting as well as...
