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/D. K. Tiwari

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So far D. K. Tiwari has created 7 blog entries.

Level Converter MAX232

By |2017-05-22T12:47:46+00:00April 19th, 2017|8051 Projects, 8085 Microprocessor, Articles, AVR Microcontroller, AVR Programming, Electronics|

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 [...]

8051 LED Interfacing with Delay

By |2017-05-29T01:36:24+00:00April 18th, 2017|8051 Projects, Electronics, Programming 8051|

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: [...]

8051 Based DTMF Control AC Appliances

By |2017-05-27T14:36:02+00:00April 18th, 2017|8051 Projects, Electronics, Programming 8051|

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 [...]

How Does a Transistor Work

By |2017-05-27T14:36:15+00:00February 25th, 2017|Articles, Electronics|

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 [...]

8051 Programming Structure

By |2017-02-15T14:10:29+00:00February 10th, 2015|8051 Projects, Uncategorized|

8051 programming Concept is useful to start the programming of the Embedded systems. If you are learner and want to start the learn about the embedded system programming concept with 8051 micro controller then these programs are very helpful to understand the basic program writing in Embedded C as well as build the concept of embedded [...]

Types of Diode

By |2017-02-17T15:09:32+00:00February 10th, 2015|8051 Projects, Articles, AVR Microcontroller, AVR Programming, Electronics, Programming 8051|

What is a diode: - When P type semiconductor and N type semiconductor connected with each other than new formed device is known as PN diode which formally known a diode. Diode is a switch, which consist two terminal electronic components that’s why it is called diode. It has asymmetric transfer characteristic with low resistance [...]

memory

By |2015-02-10T14:05:43+00:00February 10th, 2015|Uncategorized|

Meaning of memory in human analogy  Human memory (brain) are play very important role in life. Brain, store all the information and human react the whole world with the help of these information’s. Now the same concept applies in the CPU. In computer worlds we can say that CPU work as a human and computer [...]

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