Home › Forums › Microcontrollers › PIC Microcontroller › Display Float on LCD – MPLAB XC8
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December 22, 2014 at 7:04 pm #10277sahuParticipant
How to display floating point values on LCD ? I am using MPLAB XC8 LCD Library.
December 22, 2014 at 10:19 pm #10280Ligo GeorgeKeymasterYou can display floating point values on LCD in following two methods.
- By converting floating point value to string and display that sting using Lcd_Write_String()
- By separating each digits and display that digit using Lcd_Write_Char() after converting it to character
The second method is the best method but it will vary depending upon the length of values that to be displayed.
December 22, 2014 at 11:49 pm #10281sahuParticipantPlease give me a example of first method.
December 23, 2014 at 7:18 am #10289Ligo GeorgeKeymasterUse sprintf() to convert floating point number to string :
........ #include<stdio.h> ...... ... ... void main() { char s[16]; float f; ........ .... while(1) { .... ... ... sprintf(s, "Float = %f", f); Lcd_Set_Cursor(1, 1); Lcd_Write_String(s); ........... ..... } }
December 23, 2014 at 4:05 pm #10321sahuParticipantThank you Sir
January 6, 2015 at 4:05 pm #10424sahuParticipantwhat wrong with me `
a = ADC_Read(0); involts =a*5000/255; delayMs(10); { Lcd_Clear(); Lcd_Set_Cursor(1,1); Lcd_Write_String("Mains"); /* Lcd_Set_Cursor(1,10); Lcd_Write_Char(involts%10 + 48); involts = involts/10; Lcd_Set_Cursor(1,9); Lcd_Write_Char(involts%10 + 48); involts = involts/10; Lcd_Set_Cursor(1,8); Lcd_Write_Char(involts%10 + 48); */ sprintf(s, "Float = %f", involts); Lcd_Set_Cursor(1, 10); Lcd_Write_String(s); Lcd_Set_Cursor(1,13); Lcd_Write_String("VOLT");
found error as
lib\doprnt.c; 837. bad call to typeSub()
`January 7, 2015 at 8:55 pm #10433Ligo GeorgeKeymaster- Try using the latest compiler
- Make sure that you properly set the pic type in configuration
- Try recreating the project after deleting all files
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