string fetching on lcd

[rajrahul2391]

hi,
i m using jhd 16x2 lcd where i m sending string of data greater than a row .can any body suggest me what should be the command or code to show this data on to next row as well.

 

[babar_ali]

Hi,

Use string length built in function to calculate the length of string and if the characters are greater than a row print first 15 and use if condition to print rest on to the second line. An example of how to calculate string length is described in the linkhttps://www.cplusplus.com/reference/cstring/strlen/?kw=strlen

enjoy!

 

[rajrahul2391]

sir can u please give me example regarding to 8051 uc,i m new in embedded world .

 

[aameer]

Do you want your program to automatically type 2nd row when it finishes first row i.e.,16 characters..
Can you give more explanation..
for second line LCD command is 0xc0

 

[rajrahul2391]

yes sir you r right i want automatically turn my cursor to next line if text size is greater than 16 in 16x2 lcd.may u plz explain with example.

 

[jayanth.devarayanadurga]

---

Code C - [expand]
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void lcd_dtring(unsigned char *str){
 
    while(*str){
 
        if(ctr < 17)lcd_cmd(0x80 + ctr)
        if((ctr >=17) && (ctr < 33))lcd_cmd(0xC0 + ctr - 16)
        lcd_data(*str++);
        ctr++;
 
    }
 
}

---

 

[aameer]

Try this code...
Hope you know the code to write for lcd_cmd and lcd_data and delay..

void lcd_data_string(unsigned char *string)
{
	unsigned short m=0;
	while(string[m]!='\0')
	{
 	  	if(m>16)
               {
                  n=m-17;
                  lcd_cmd(0xc0+n);
                  if(n>16)
                  {
                     m=0; 
                     delay_ms(300);
                     lcd_cmd(0x01);
                   }  
                }              
                lcd_data(string[m]);				  
 	  	m++;
   	}
}

 

[rajrahul2391]

thank u very much sir it works.