JK Flip Flop Conversion Techniques

JK Flip Flop is the most commonly used flip flop but in some cases we need SR, D or T flip flop. In such cases we can easily convert JK flip flop to SR, D or T. The first thing that needs to be done for converting one flip flop into another is to draw the truth table for both the flip flops. The next step is to create the equivalent K-Maps for the required outputs.

SR Flip Flop using JK...

October 16, 2012By DebaratiElectronics2 CommentsRead more...

PWM : Pulse Width Modulation

Pulse Duration Modulation or Pulse Width Modulation is a powerful technique used to control analog circuits using digital outputs. Nowadays PWM has a wide variety of applications such as to create analog voltage level, waveform generation, motor speed control, power control and conversion, measurements and communication etc. PWM uses a rectangular pulse wave as shown in the figure below whose pulse width is modulated, which results in the variation in the average voltage of the waveform. Pulse Width Modulation

PWM Period

The PWM Period is the time...

October 9, 2012By Ligo GeorgeElectronicsPulse, PWM1 CommentRead more...

Simple Water Level Indicator

We have already posted about a Water Level Indicator and Controller using PIC Microcontroller. Today I am presenting a very useful, very cheap and very simple circuit using transistors for beginners in the field of electronics. This simple circuit can indicate the level of water in your tank using LEDs.

Circuit Diagram

Simple Water Level Indicator Circuit Diagram The connections and arrangements are made as shown in the figure above. The +9V is...

September 30, 2012By Abhay BajpaiElectronics, Hobby Circuits, ProjectsLED, Level, Transistor, Water26 CommentsRead more...

LFC : Light Field Camera – Take your snaps.. Focus later..

You may have face a number of situations where the images you captured gets blurred. Or sometimes you may miss to click some valuable moments due to delay in focusing. Imagine a camera that doesn't need to focus before taking a snap. Just take some clicks at random. Don't bother whether it blurred or not. Microlens panel in LFC Light Field Camera, or called plenoptic camera, consists of a million of microlens to capture 4D light field information from all the distances, obtaining...

September 26, 2012By FleminElectronics, NewsCamera, LFC0 CommentsRead more...

Analog to Digital Conversion in ARDUINO

Analog to digital conversion module of ARDUINO UNO has 6 input ports. The number of the port varies with your ARDUINO model but the coding remains the same. The analog reading in the analog inputs are converted into corresponding 10bit(0-1023). ARDUINO developers have made such an option that you can print anything and see it on the Serial monitor. This example demonstrates analog input usage by reading an analog sensor on analog pin 0 and turning on and off a...

September 25, 2012By Aswin Babu G KArduino, Electronics, TutorialsADC, analog, Arduino, Digital, Embedded, Microcontrollers, serial1 CommentRead more...

Building Your Own PCB : Printed Circuit Boards

The electronic product construction technique for many is the printed circuit board, or PCB. There are a number of ways to build a custom printed circuit board. Good quality copper clad should be used for manufacturing of printed circuit board. Materials that you use to make printed circuit boards come in various forms. You can buy either single- or double-sided copper clad. Unless you’re making a double-sided board, stick with single-sided clad. The board that you use to make your PCB...

September 25, 2012By Albin MathewElectronics, Tutorialsetching, making, manufacturing, pcb0 CommentsRead more...

Automatic Garden Light Controlling System

Just like my previous circuit using LM358 this is also very cheap,also under 100 rupees. This is a circuit for controlling the street lights,garden lights,automatically. You don't need to turn it on and turn it off again and again, just turn on the circuit once and forget, it will automatically manage itself by sensing the available brightness in the garden or street.

Circuit Diagram

Automatic Garden Light Controlling System Circuit Diagram

Working

In this circuit the IC LM358 is working...

September 25, 2012By Abhay BajpaiElectronics, Hobby Circuits, Projects555, Automatic, Garden, light, Op-Amp15 CommentsRead more...

Laser Security System

Here is a simple and cheap Laser Based Security System, which costs below Rs. 100. It is a simple circuit using LM358 OP-AMP and LM555 Timer. This circuit is triggered when the Laser beam falls on the LDR interrupts, which sounds the buzzer connected to it. This can be used to protect your valuable items, money, room etc.. By using different mirror arrangements you can form different security systems. This can also be used to protect more than one objects by suitably arranging...

September 16, 2012By Abhay BajpaiElectronics, Hobby Circuits, Projects555, Laser, Op-Amp, Security, System37 CommentsRead more...