reading-humidity-sensor-pic16f877a.c

sbit LCD_RS at RB4_bit;
sbit LCD_EN at RB5_bit;
sbit LCD_D7 at RB3_bit;
sbit LCD_D6 at RB2_bit;
sbit LCD_D5 at RB1_bit;
sbit LCD_D4 at RB0_bit;

sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D7_Direction at TRISB3_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D4_Direction at TRISB0_bit;

#define LCD_RW  RB6_bit
#define LCD_BL  RB7_bit

void main()
{
    char Humidity[15];
    float ADC_float = 0.0;
    float Humidity_float = 0;

    TRISB6_bit=0;   //set both RB6 and RB7 pin as output
    TRISB7_bit=0;

    LCD_BL = 1;    //turn on Backlight
    LCD_RW = 0;    //set LCD in write mode

    Lcd_Init();  //this function initialize all LCD configuration
                 //including the pin direction configuration
    Lcd_Cmd(_LCD_CURSOR_OFF);  //turn off LCD cursor

    ADC_Init();

    Lcd_Out(1,1,"Humidity (%RH):");
    
    while(1)
    {
        ADC_float=(float)ADC_Get_Sample(0);

        Humidity_float=10.0+((ADC_float*5.0/1024.0)-0.75)*32.0;
        
        FloatToStr(Humidity_float,Humidity);

        Lcd_Out(2,1,Humidity);
        
        Lcd_Out_CP("          ");
    }
}