LcdProgressBar

1#include <LiquidCrystal.h>
2#include <LcdProgressBar.h>
3
4byte  lcdNumCols = 16; // -- number of columns in the LCD
5
6LiquidCrystal lcd(12,  11, 5, 4, 3, 2);
7LcdProgressBar lpg(&lcd, 1, lcdNumCols);
8
9unsigned long  duration = 2000; // 2000 milliseconds, 2 seconds
10unsigned long startedMillis  = 0;
11
12void setup() {
13  //-- Only useful for debugging purpose
14  Serial.begin(9600);
15
16  //-- initializing the LCD
17  lcd.begin(2, lcdNumCols);
18  lcd.clear();
19
20  lcd.setCursor(0, 0);
21  lcd.print("LcdProgressBar");
22      
23  delay(100);
24
25  //-- initializing the progress bar
26  initLpg();
27}
28
29//-- initializing  the progress bar
30void initLpg()
31{
32  //-- start time
33  startedMillis  = millis();
34
35  //-- Set min and max values
36  lpg.setMinValue(startedMillis);
37  lpg.setMaxValue(startedMillis + duration);
38
39  //-- Draw it: the frame
40  lpg.draw(startedMillis);
41}
42
43void loop() {
44
45  unsigned long currentMillis  = millis();
46
47  //-- draw progress bar
48  lpg.draw(currentMillis);
49
50  if ((unsigned long)(currentMillis - startedMillis) > duration) {
51    //---  Duration's over: delay and start again!
52    delay(900);
53    initLpg();
54  }
55
56  // -- do some delay: frequent draw may cause broken visualization
57  delay(100);
58}