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May 14, 2015 at 7:51 am in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #12888amit d vekariyaParticipant
i send u chek your mail
April 10, 2014 at 6:22 pm in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #11520amit d vekariyaParticipantI TRY THIS BUT NOT WORKING..I HAVE CHECKED THE VOLTAGE AT ECHO PIN. OF HCSR04 BUT THERE IS NO VARIATION IN VOLTAGE.
March 27, 2014 at 7:28 am in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #11403amit d vekariyaParticipantI M USING HCSRO4 SENSOR ….U MEAN ALSO HELPFUL FOR THIS SENSOR AND U HAVE CKT DIAGRAM FOR
THAT???
March 27, 2014 at 6:34 am in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #11402amit d vekariyaParticipantTHANKS BRO….
March 25, 2014 at 8:05 am in reply to: MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM #11381amit d vekariyaParticipantYOU HAVE ANY IDEA HOW TO INTERFACE BUZZER IN THIS PROJECT AT PERTICULAR DISTANCE…..
SUPOSE DISTANCE REACHS AT 100CM AND BUZZER WILL ACTIVATE AUTOMATICALLY…PLZ ANY ONE HAVING ANY IDEA THEN REPLAY…
MY PROGRAMM….
#include<REGX51.h>#include<intrins.h>sfr16 DPTR =0x82;sbit trig=P3^7;unsigned int target_range=0;void delay(unsigned int t){ unsigned int i,j;for(i=0;i<t;i++)for(j=0;j<111;j++);}void lcddata(unsigned char a){ unsigned char q;q=a;a=a & 0xf0;a=a >> 2;P1=a | 0x03;delay(1);P1_1=0;delay(1);q=q & 0x0f;q=q << 2;P1=0x03 ;P1=q | 0x03;delay(1);P1_1=0;}void lcdcmd(unsigned char a){ unsigned char q;q=a;a=a & 0xf0;a=a >> 2;P1=0x02;P1=a | 0x02;delay(1);P1_1=0;delay(1);q=q & 0x0f;q=q << 2;P1=0x02 ;P1=q | 0x02;delay(1);P1_1=0;}void send_pulse(void){TH0=0x00;TL0=0x00;trig=1;_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();trig=0;}unsigned char get_range(void){unsigned char range;send_pulse();while(!INT0);while (INT0);DPH=TH0;DPL=TL0;TH0=0xFF;TL0=0xFF;if(DPTR<35000)range=DPTR*1.085/59;elserange=0;return range;}void main(){ unsigned char x,y,z;TMOD=0x09;TR0=1;TH0=0x00;TL0=0x00;P0=0xff;P3_2=1;P0=0XFF;delay(1);lcdcmd(0x33);delay(1);lcdcmd(0x32);delay(1);lcdcmd(0x28);delay(1);lcdcmd(0x0c);delay(1);lcdcmd(0x01);delay(1);lcdcmd(0x80);delay(1);lcddata(‘D’);delay(1);lcddata(‘i’);delay(1);lcddata(‘s’);delay(1);lcddata(‘t’);delay(1);lcddata(‘a’);delay(1);lcddata(‘n’);delay(1);lcddata(‘c’);delay(1);lcddata(‘e’);delay(1);lcddata(‘:’);delay(1);lcdcmd(0x8c);lcddata(‘c’);delay(1);lcddata(‘m’);delay(1);while(1){ lcdcmd(0x89);target_range=get_range();target_range=target_range%1000;z=target_range/100;lcddata(z|0x30);target_range=target_range%100;x=target_range/10;lcddata(x|0x30);y=target_range%10;lcddata(y|0x30);delay(500);}} -
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