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Digital Tachometer using IR Sensor with Arduino for measuring RPM


Introduction In this project we have designed Digital Tachometer using IR Sensor with Arduino for measuring the number of rotations of rotating Motor in RPM. Simply we have interfaced IR sensor module with Arduino and 16*2 LCD module for display. The IR sensor module consists of IR Transmitter & Receiver in a single pair that can work a Digital Tachometer for speed measurement of any rotating object. Tachometer is a RPM counter which counts the [...]

Digital Tachometer using IR Sensor with Arduino for measuring RPM2018-04-02T11:27:46+00:00

Interfacing DHT11 Humdity & Temperature Sensor with Arduino & LCD


Introduction In this project we will be Interfacing DHT11 Humdity & Temperature Sensor with Arduino & LCD. We will design a device that will be capable of measuring room temperature and environmental humidity. Simply we will design a digital humidity and temperature meter using Arduino and DHT11 sensor with the value displayed on LCD. This DHT11 Temperature and Humidity Sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology [...]

Interfacing DHT11 Humdity & Temperature Sensor with Arduino & LCD2018-04-02T11:20:27+00:00

Level Converter MAX232


Level converter MAX232 is very essential when we are interfacing the digital hardware (controller) to the computer via serial mode. The computer serial port use RS 232 protocol and controller works on the TTL logic. These two hardware need to synchronize with each other for the proper communications. To solve this problem MAX 232 IC is used, this IC convert RS232 signal to TTL and TTL to RS232. Hence we can exchange few [...]

Level Converter MAX2322017-04-19T10:36:27+00:00

8051 LED Interfacing with Delay


In this tutorial we learn about how the 8051 LED interfacing with delay generation is done . Time delay generation in 8051 architecture is done by the two methods. Using a simple loop logic Using internal timer register Programming Example 1 1.  Write an embedded C program to continuous flashing the LED connected to port 2. Algorithm: Include the preprocessor directive <reg51.h> Make a delay function with void type and an integer type argument ‘a’. Declare variable [...]

8051 LED Interfacing with Delay2017-04-18T16:56:26+00:00

8051 Based DTMF Control AC Appliances


DTMF  dual tone is multiple frequency tone which is generated by  phone when the key is pressed. This tone can be used at various applications to control the hardware. DTMF based home appliances is the one of the application of them. When the two phones are connected for the call at that time when the keys is pressed then DTMF tone is also generated. So in this method we can control it from the anywhere [...]

8051 Based DTMF Control AC Appliances2017-04-18T16:47:30+00:00

8051 Microcontroller


Introduction 8051 has internally Harvard architecture developed by Intel in 1970s for use in embedded systems. It has basic features of microprocessors with internal ROM, RAM, input output ports inbuilt on a single chip. Microcontroller is a device in which entire computer manufactured on a single chip. Microcontroller has 3 basic sizes: Standard, short, extended Sort and extended chips are available in DIP (dual-in-line package), but extended 8051 models have differ form factor, and are [...]

8051 Microcontroller2017-04-13T09:50:19+00:00

How Does a Transistor Work


The Bipolar Junction Transistor The transistor was invented by John Bardeen and W.H. Brattain in 1948. A transistor often called as Bipolar Junction Transistor (BJT) conducts due to both electrons and holes. BJT have two junctions and three terminals. There are two types of transistor: 1. N-P-N Transistor 2. P-N-P Transistor A transistor consist of three regions with three pins named as emitter, collector and base. EMITTER: The doping concentration in this region is higher [...]

How Does a Transistor Work2017-02-25T16:42:18+00:00

Electronics Engineering Technology


Introduction             Electronics engineering deals about the flow of electron and relation of electrons with behavior of all other elements .  Electrical engineer is the mother of electronics engineering because the branch becomes popular due to electrical power generation. Personality             Electronics engineer should be aware about the fact that future technology can be develop to change the world . This means who invent the new gadgets according to need of time and situation can [...]

Electronics Engineering Technology2017-02-25T16:33:42+00:00

CNC Machine


Introduction In this article we will understand the functioning of the CNC machine and their parts. We will also learn the control circuitry of the CNC machine. Block diagram of CNC Machine A CNC system consists of  6 major elements: Input Device Machine Control Unit Machine Tool Driving System Feedback Device Display Unit Input Devices The  data  transfer  between  computer  and  CNC  machine  is  through a serial communication port. RS-232 cable is used  for data [...]

CNC Machine2017-02-25T16:20:34+00:00

Bit locker Encryption Password of Windows 7


Contributor : Suryansh Gupta Bit Locker Encryption Password The bit locker drive encryption is only available in the windows 7 ultimate and enterprise versions. Turn on bit locker and encrypt the internal data…. Steps Open start menu then click on my computer. Choose a non operating system internal drive i.e. d, e, f or more exclude the c drive. Right click on the drive like this… Open the control panel mentioned in the startup menu and [...]

Bit locker Encryption Password of Windows 72017-02-25T16:11:05+00:00

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