Cell Phone Jammer

How to Build: Cell Phone Jammer

Cell phone jammer is an electronic device that blocks transmission of signals between a cell phone and a base station. By using the same frequency as a mobile handset, the cell phone...
humidity sensor

Humidity Sensor: Basics, Usage, Parameters and Applications

Sometimes, after rains, the air feels moist. The water seems to have suspended in the air. However, in certain AC’s you click some buttons and the atmosphere brightens up. How and...
16x2 lcd pinout

How 16×2 LCDs work | Build a basic 16×2 character LCD

We come across LCD displays everywhere around us. Computers, calculators, television sets, mobile phones, digital watches use some kind of display to display the time. An LCD is an electronic display...
electronic devices and theory

Electronic Devices and Circuit Theory

Here is a presentation on Electronic Devices and Circuit Theory. This presentation covers, Semiconductor Diodes Diodes Diode Characteristics Semiconductor Materials Doping p-n Junctions Diode Operating Condition Actual Diode Characteristics Majority an...
automation projects

12 Awesome Automation Projects

Automation allows the benefit of automating tasks and minimizing human involvement. This has led to a lot of people working on automation projects, as these are fun to create and have...

Half & Full Wave Rectifier | Rectifier Basics

Power conversion is very common with today’s electronics. We constantly switch from AC to DC and vice-versa. The common source of AC is the power supply whereas, batteries are used for...

Microcontroller vs Microprocessor

Selecting the right device on which to base your new design can be daunting. The need to make the right balance of price, performance and power consumption has many implications. First, there...
AVR projects

AVR Projects Collection | 20 ATmega MCU Projects

AVR is a family of microcontrollers developed by Atmel beginning in 1996. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers. ATmega series are one of the types of AVR microcontrollers with features like 4–256 KB program memory, 28–100-pin package, extended instruction...
GSM Module

All You Wanted to Know About GSM Module and GPRS Module

Contents What is GSM/GPRS? What is GSM Module? Modems, Modules and Mobile Applications of GSM module Points to Consider Interface example Before we get into what a GSM module is, let us...

Tutorial: Antenna Gain and Directivity

RF antennas or aerials do not radiate equally in all directions. It is found that any realisable RF antenna design will radiate more in some directions than others. The actual pattern...

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