i want assembly language program for interfacing between 89c51 and LCD display. ....etc

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automatic distance measurement and braking system using ultrasonic sensor

Abstract
This paper presents an ultrasonic automatic braking system for forward collision avoidance with accelerator pedal disengagement mechanism. This system consists of ultrasonic sensors namely ultrasonic wave emitter and ultrasonic wave receiver. The ultrasonic wave emitter is provided in front portion of the car, producing and emitting ultrasonic waves in a predetermined distance in front of the car. Ultrasonic wave receiver is also provided in front portion of th ....etc

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assembly language code for interfacing AT89c51 with GSM modem. ....etc

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To get full information or details of ultrasonic sensor hc sr04 with 8051 please have a look on the pages

http://edutwint-ultrasonic-sensor-based-dc-motor-control-using-labview

if you again feel trouble on ultrasonic sensor hc sr04 with 8051 please reply in that page and ask specific fields in ultrasonic sensor hc sr04 with 8051 ....etc

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HI I WOULD LIKE TO KNOW HOW TO INTERFACE ULTRASONIC SENSOR WITH LPC2148 ....etc

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Dear sir..
I know d working principle of ir sensor but its range is vry low so I cannote use it in some project..
So pls give me some idea about ultrasonic sensor..
1.how to interface with AT89c51/52
2.assembly language prog to glow an led when any body infront of the sensor..
Kindly help me sir ....etc

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plzz give me interfacing of barcode reader with 89c51 microcontroller program ....etc

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ultrasonic sensor code for obstacle detection using avr

It is essential to give your robot eyes for preventing crashes. Ultrasonic sensors, also known as transducers, have a similar working system as a radar or sonar by interpreting the echoes of radio or sound waves generated by the sensor. In this way, a robot can detect obstacles and the distance to obstacles. In this article, we make an overview of most popular ultrasonic sensors used in robotic applications and tutorials to learn how to interface and programming these sensors in order to ....etc

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ultrasonic sensor interfacing with lpc2148

ARM7 LPC2148 Primer Board The ARM7 LPC2148 Primer board is specifically designed to help students to master the required skills in the area of embedded systems. The kit is designed in such way that all the possible features of the microcontroller will be easily used by the students. The kit supports in system programming (ISP) which is done through serial port. NXP s ARM7 (LPC2148), ARM Primer Kit is proposed to smooth the progress of developing and debugging of various designs encompassing of High s ....etc

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interfacing of ultrasonic sensor to 89c51 with keil codes

#include

#include
// for using _nop_() function
#define port P2
#define dataport P0
sfr16 DPTR =0x82;
sbit trig=P3^5;
sbit rs=port^0;
sbit rw=port^1;
sbit e=port^2;


void delay(unsigned int msec)
{
int i,j;
for(i=0;i for(j=0;j<1275;j++);
}

void lcd_cmd(unsigned char item) // Function to send command to LCD
{
dataport = item;
rs= 0;
rw=0;
e=1;
delay(1);
e=0;
return;
}

void lcd_data(unsigned char item) // Function to send data to LCD
{
dataport = ....etc

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