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A tachometer is nothing but a simple electronic digital transducer. Normally, it is used for measuring the speed of a rotating shaft. The number...

Here is a dual-mode robot that can be operated manually using an RF-based remote control and can also move automatically avoiding all the obstacles....

In continuation of the embedded control applications explained in Part 2, let’s now examine the use of inbuilt functions of AVR ATmega8535 (such as...

Presented here is a personal weather logger whose various transducers are used to log weather data such as humidity, atmospheric pressure and temperature. The...

Radio-frequency identification (RFID) is an automatic identification method wherein the data stored on RFID tags or transponders is remotely retrieved. The RFID tag is...

The regular 16×2 LCD can display characters of only certain dimensions. A graphical LCD (GLCD), on the other hand, can display custom graphics. GLCDs...

This AVR microcontroller-based global positioning system (GPS) receiver can be used to find the exact location of a place and know its standard time....

Stroboscope is a convenient and accurate enough instrument to measure speeds of rotating objects in homes or industries. One can use it to find...

This PIC16F877A microcontroller-based quiz controller, designed for up to six players or teams, is suitable for school and college quiz competitions. It is similar...

The use of battery-operated electronics gadgets is increasing fast in our daily lives. Products are expected to be versatile, while consuming minimal power. Reduced...