Air quality Click

01 void main() {
02 
03  LCD_Init();                                // Initialize Lcd
04  Lcd_Cmd(_LCD_CLEAR);                       // Clear display
05  Lcd_Cmd(_LCD_CURSOR_OFF);                  // Cursor off
06  Lcd_Out(1,1,"AirQuality click");           // Write text in first row
07 
08  ANSELA = 0x04;                             // Set ADC on RA2
09  TRISA  = 0x04;                             // Set RA2 as input
10  LATA   = 0;                                // Set PORTA as 0
11  ADC_Init();                                // Initialize ADC
12  delay_ms(100);                             // Pause of 100ms for ADC module stabilization
13 
14  //Initial read ADC and display PPM value on LCD
15  readSensor();                              // Read sensor
16  calculatePPM();                            // Calculating PPM value
17  
18  FloatToStr(ppm,&txt);                      // Conversion float ppm to string txt
19  LCD_Out(2,14,"ppm");                       // Print text on LCD
20  LCD_Out(2,1,txt);                          // Print txt value on LCD
21  
22  while(1) {
23  
24    delay_ms(500);                           // Pause 500ms
25    readSensor();                            // Read sensor
26    calculatePPM();                          // Calculating PPM value
27    FloatToStr(ppm,&txt);                    // Conversion float ppm to string txt
28    LCD_Out(2,1,"             ");
29    LCD_Out(2,1,txt);                        // Print txt value on LCD
30    
31  }
32 }