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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please send me base papers of this titles

1. MOBILE BASED INVOLUNTARY ROBOTIC CONTROL SYSTEM
2. DETECTION OF TRAIN COLLISION AND LOCATION USING GPS AND SEND SMS THROUGH GSM TO A MOBILE
3. PATIENT MEDICAL INFORMATION SYSTEM USING FINGER PRINT
4. IMPLEMENTATION OF VEHICLE TRACKING SYSTEM USING GPS AND GSM TECHNOLOGY
5. CENTRALISED FM AND INFORMATION ANNOUNCING SYSTEM USING CELL PHONE(M)
6. LIVE HUMAN DETECTION AND TRACKING USING GPS AND SEND SMS THROUGH GSM TO A MOBILE
7. AUTOMATED VEHICLE SECURITY SYSTEM WITH ZIGBEE KEYLESS ....etc

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To get full information or details of 89c51 based prepaid energy meter please have a look on the pages

http://seminarsprojects.net/Thread-prepaid-energy-meter-using-gsm-mobile?page=4

http://seminarsprojects.net/Thread-prepaid-energy-meter-using-gsm-mobile

if you again feel trouble on 89c51 based prepaid energy meter please reply in that page and ask specific fields in 89c51 based prepaid energy meter ....etc

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to get information about the topic digital energy meter with 89c51 related topic refer the page link bellow

http://seminarsprojects.net/Thread-prepaid-energy-meter-using-gsm-mobile?page=4

http://seminarsprojects.net/Thread-prepaid-energy-meter-using-gsm-mobile?pid=49578&mode=threaded ....etc

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

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

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Embedded Energy Meter- A New Concept To Measure The Energy Consumed By A Consumer And To Pay The Bill

ABSTRACT
In this paper, a new concept of energy meter will be discussed, where maximum demand of energy of a consumer will be indicated in the meter used by the consumer. After exceeding the maximum demand, the meter and hence the connection will automatically be disconnected by an embedded system inserted in the meter itself. According to the maximum demand, the consumer will purchase a cash-card of amount depending on the consumpt ....etc

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

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#include

#include

#define METERSLAVEID 11

#define LEDPIN 13

// initialize the library with the numbers of the interface pins

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

// Create a software interface for meter (create a ModBusMaster node)

ModbusMaster node(METERSLAVEID);

void setup() {

// Initialising communication with meter

node.begin(9600);



// Setting up led

pinMode(LEDPIN, OUTPUT);



// set up the LCD's number of columns and rows:

lcd.begin(16, 2);



// Print a message to th ....etc

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i want circuit diagram for digital energy meter with data logger ....etc

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