So I spent yesterday afternoon and some of this morning trying to get somewhere on my own, and failing spectacularly.
As I'm sure many before me have, I'm trying to re-create the screen from the 2012 Dredd Lawgiver, and while I've stumbled through a good portion of it, I'm getting stuck with the initial "DNA check" progress bar.
I've looked at various "progress bar" and "loading bar" tutorials, and either they use a potentiometer that I can't work out how to remove, or they use a library I'm not using (and for the sake of cleanliness, would like to not use). I found one that made some kind of sense that used the old version of u8g - Which I thought was a great start because, although in French, I'm already using u8g2. However. The code will compile, it'll upload, but the loading bar does diddly squat.
I've tried the bar-drawing in various ways, and it never seems to .. draw. I've used the u8g2.setDrawColor in every which way I can think of, but that doesn't seem to make any difference to anything but the rest of the display.
#include <Arduino.h>
#include <U8g2lib.h>
int lbar=0;
U8G2_SSD1305_128X32_NONAME_F_4W_SW_SPI u8g2(U8G2_R0, 10, 9, 12, 11, 13);
void setup(void) {
u8g2.begin();
u8g2.clearBuffer();
//Progress bar--------------------------------------------------------------------------------
lbar++;
if (lbar >100) lbar=0;
delay(100);
u8g2.sendBuffer();
u8g2.drawBox (1,1,lbar,6);
//Progress bar--------------------------------------------------------------------------------
}
void loop(void) {
//glyph drawings
//u8g2.setFont(u8g2_font_unifont_t_symbols);
//u8g2.drawGlyph (0,7, 0x23F9);
//u8g2.drawGlyph (7,7, 0x23F9);
//u8g2.drawGlyph (15,7, 0x23F9);
//Text-noninverse
u8g2.setFont(u8g2_font_artossans8_8u);
u8g2.setCursor(2,22);
u8g2.print("DNA CHECK");
u8g2.setFont(u8g2_font_profont10_tf);
u8g2.setCursor(104,22);
u8g2.print("RAPID");
//NUMBERS
u8g2.setFont(u8g2_font_4x6_tr);
//DISTANCE-NUM
u8g2.setCursor(9,32);
u8g2.print("0.0");
//AP-NUM
u8g2.setCursor(23,32);
u8g2.print("25");
//IN-NUM
u8g2.setCursor(48,32);
u8g2.print("25");
//HE-NUM
u8g2.setCursor(79,32);
u8g2.print("25");
//FMJ-NUM
u8g2.setCursor(102,32);
u8g2.print("25");
//TEXT
//Distance-TEXT
u8g2.setCursor(2,32);
u8g2.print("D:");
//AP-TEXT
u8g2.setCursor(32,32);
u8g2.print("ap");
//IN-TEXT
u8g2.setCursor(57,32);
u8g2.print("in");
//HE-TEXT
u8g2.setCursor(89,32);
u8g2.print("he");
//FMJ-TEXT
u8g2.setCursor(111,32);
u8g2.print("fmj");
//Linedrawings
//horizontal and vertical lines bottom
u8g2.drawLine(1,25,127,25);
u8g2.drawLine(21,31,21,25);
u8g2.drawLine(46,31,46,25);
u8g2.drawLine(77,31,77,25);
u8g2.drawLine(100,31,100,25);
//angled lines top right
u8g2.drawLine(121,1,120,6);
u8g2.drawLine(123,1,122,6);
u8g2.drawLine(125,1,124,6);
u8g2.drawLine(127,1,126,6);
u8g2.sendBuffer();
delay(1000);
}
That's the entire sketch as it stands right at this moment. I think 90% of it can be safely ignored, because I can't see how it'd be having an effect, but I could be being dumb.
I've tried so many different iterations I've lost track of exactly what I've tried, but. I know the 'drawing' as such kind of works, as if I change the int lbar=0 value, it draws whatever value I put in there - But doesn't do much else.
The end goal, for those unfamiliar with the film, is that when it boots up the screen displays "DNA CHECK" as a bar scrolls across the top to whatever the end ends up being (Which I believe is controlled by that if statement at the start). While this is displayed a red LED is lit, and when the bar reaches its complete state the "DNA CHECK" portion changes to "I.D OK", and the LED changes to green.
That's the end goal for this little project.
But I've reached the end of what I can muddle through. Can anyone point at where I'm going wrong?