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How to interfacing of L293D with 8051 (89c51)

2020-01-06T16:58:36+00:00

Description In this tutorial we understand how to interfacing l293d with 8051 micro controller. The l293d is motor driver IC which drive the DC gear motor through the 8051 micro controller. The interfacing of L293D can be understand with the help of any application, so here we understand with the help of motor driver program. Program to interfacing of L293D with 8051

How to interfacing of L293D with 8051 (89c51)2020-01-06T16:58:36+00:00

Intel 8255A – Programmable Peripheral Interface

2019-02-23T23:56:20+00:00

The Intel 8255 (or i8255/onkyo tx 8255) Programmable Peripheral Interface (PPI) chip was developed and manufactured by Intel for the Intel 8080 microprocessor in the early 1970's. The 8255A is a programmable universal I / O device that allows the transfer of I / O data to an I / O interrupt when needed. It can be used with almost any microprocessor. It consists of three bidirectional 8-bit I / O ports (24 I / [...]

Intel 8255A – Programmable Peripheral Interface2019-02-23T23:56:20+00:00

8051 Microcontroller Timers and Counters

2018-12-17T00:08:54+00:00

A timer is a special clock that is used to measure time intervals. It is a device that counts down from a certain time interval and is used to generate a delay. The timer can be used on an internal clock or from an external source. A meter is a device that stores (and sometimes displays) the frequency with which a particular event or process has occurred relative to a clock signal. This counts events [...]

8051 Microcontroller Timers and Counters2018-12-17T00:08:54+00:00

2018-12-15T17:15:04+00:00

Description In this tutorial we understand how to interfacing l293d with 8051 micro controller. The l293d is motor driver IC which drive the DC gear motor through the 8051 micro controller. The interfacing of L293D can be understand with the help of any application, so here we understand with the help of motor driver program. Program to interfacing of L293D with 8051

2018-12-15T17:15:04+00:00

Interfacing of Seven Segment Display with 8051

2018-12-15T16:23:36+00:00

Introduction In this tutorial we will learn about the interfacing of seven segment display with 8051 controller. Before interfacing the seven segment we must be know about the types of seven segment and their controlling logic.As we know 7 segment are two types common anode and common cathode. In common cathode LED is glow by positive logic (1) and in common anode type it operate on low logic (0). Required circuit component: Microcontroller - AT89C52 7 [...]

Interfacing of Seven Segment Display with 80512018-12-15T16:23:36+00:00

8051 Pin Diagram

2017-05-27T14:05:35+00:00

VCC - 5V Supply Port 0(p0.0 to p 0.7): It is eight bit bidirectional I/O port. During external memory access, it functions as multiplexed data and law order address bus AD0-AD7. Port 1(P1.0 to P 1.7): It is eight bit bidirectional I/O port, when logic 1 then it works as Input mode. Port 2(P2.0 to P2.7): It is eight bit bidirectional I/O port. During external memory access it works as higher order address bus.(A8-A15). Port 3 (P 3.0 [...]

8051 Pin Diagram2017-05-27T14:05:35+00:00

8051 Microcontroller Architecture (Block Diagram)

2017-05-27T13:58:54+00:00

Block Diagram of 8051 Microcontroller Microcontroller has built in RAM for internal processing and it has two bus Data bus Address bus It has 8 bit processing unit and 8 bit and 8 bit and 8 bit accumulator, and have 8 bit and 16 bit registers. CPU It monitors controls all operations that are performed in microcontroller, its function is to read program written in ROM memory and do the executed task. Interrupts Interrupts are [...]

8051 Microcontroller Architecture (Block Diagram)2017-05-27T13:58:54+00:00

Level Converter MAX232

2017-04-19T10:36:27+00:00

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

2017-04-18T16:56:26+00:00

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

2017-04-18T16:47:30+00:00

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

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