Traffic lights control system:Proteus Simulation

Hello readers are you looking for a simple and sober Traffic Lights control system project? Well, your search for traffic lights controlling ends here. This is a really simple technique of  traffic lights control with minimum components.  This project is a very simple and self explanatory, only two flip-flops and one and gate is used for traffic […]

A complete guide for LED Blinking

What is LED? A light-emitting diode (LED) is a semiconductor light source. LEDs have allowed new text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology. What is LED Blinking? LED blinking is same as eye blinking. Close and open eyes is called an eye […]

3.3V to 5V level Shifter circuit with Transistor

3.3V to 5V and 5V to 3.3V level shifting made easy Hello friends, hope that you are doing fine with your project works…. You are here reading this post this means that you have stuck with the problem that one of your device is operating on 3.3V and other is operating on 5V so how […]

How to use 74hc245 buffer as voltage Level Shifter?

>> Basic guide to use 74HC245 buffer >> 74HC245 buffer is a high speed buffer from NXP(philips). It is used to convert voltage level of different databus in embedded systems. >> Some time we need to connect a 3.3 volt operated device with 5 volt device. For example we have to connect ethernet controller ENC28J60 […]

R2R Ladder Resistor Network DAC Proteus simulation

>> There are many ways to convert your digital signal into analog signal. Here we are giving tutorial on R2R ladder resistor type of DAC. What is DAC? A device used to convert digital signal into analog signal is called DAC (digital to analog converter). >> There are number of methods to perform DAC operation. A list […]


Hello friends This post is about Digital to Analog Converter (DAC) made by Pulse Width Modulation (PWM). As you filter out a PWM pulse you get DC output voltage and thus this process of filtering PWM pulses can be used as DAC (Digital to analog conversion). As you can see in this figure Filtered PWM […]

Morse Code Alphabet Decoder or Translation Algorithm using Picaxe

>> There are many Morse Code decoder or translator projects are available on internet for PIC microcontroller. But All this projects requires external tone detector circuitry.  >> Which makes project dependent on circuitry other then PIC microcontroller. But here a genius mind raybrune made “Morse Code Alphabet Decoder or Translation Algorithm using Picaxe” project without using […]