VGA monitor with VGAX library text is vibrating

Projects Programming
1

I have a project where i want to right text to a VGA screen from a keyboard .
I am using an Arduino Uno and connected a VGA display.
I tried different setups with the VGA library

I am trying to get this one to work,
link 1
I got it work and it displays the text, but the text vibrates.
code

/*************************************************************************
 * 
 * VGA output with Arduino (white and black colors).
 * This is a free software with NO WARRANTY.
 * https://simple-circuit.com/
 *
 ************************************************************************/

#include <Adafruit_GFX.h>  // include Adafruit graphics library
#include "VGA.h"           // include VGA library

// initialize the VGA library
VGA display = VGA();

void setup(void) {
  // initialize the VGA display
  display.begin();

  display.delay(5000);     // wait 5 seconds
  display.clearDisplay();  // clear the screen buffer

  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.println("Hello, world!");
  display.setTextColor(BLACK, WHITE);
  display.println(3.141592);
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.print("0x");
  display.println(0xDEADBEEF, HEX);

  display.setCursor(0, 40);
  display.setTextSize(1);
  display.print("Arduino VGA Example");
}

void loop() {
  ;
}

// end of code.

I tried another example link
with this code usign the bitfont example

#include <VGAX.h>

//font generated from BITFONZI - by Sandro Maffiodo
#define FNT_NANOFONT_HEIGHT 6
#define FNT_NANOFONT_SYMBOLS_COUNT 95
//data size=570 bytes
const unsigned char fnt_nanofont_data[FNT_NANOFONT_SYMBOLS_COUNT][1+FNT_NANOFONT_HEIGHT] PROGMEM={
{ 1, 128, 128, 128, 0, 128, 0, }, //glyph '!' code=0
{ 3, 160, 160, 0, 0, 0, 0, }, //glyph '"' code=1
{ 5, 80, 248, 80, 248, 80, 0, },  //glyph '#' code=2
{ 5, 120, 160, 112, 40, 240, 0, },  //glyph '$' code=3
{ 5, 136, 16, 32, 64, 136, 0, },  //glyph '%' code=4
{ 5, 96, 144, 104, 144, 104, 0, },  //glyph '&' code=5
{ 2, 128, 64, 0, 0, 0, 0, },  //glyph ''' code=6
{ 2, 64, 128, 128, 128, 64, 0, }, //glyph '(' code=7
{ 2, 128, 64, 64, 64, 128, 0, },  //glyph ')' code=8
{ 3, 0, 160, 64, 160, 0, 0, },  //glyph '*' code=9
{ 3, 0, 64, 224, 64, 0, 0, }, //glyph '+' code=10
{ 2, 0, 0, 0, 0, 128, 64, },  //glyph ',' code=11
{ 3, 0, 0, 224, 0, 0, 0, }, //glyph '-' code=12
{ 1, 0, 0, 0, 0, 128, 0, }, //glyph '.' code=13
{ 5, 8, 16, 32, 64, 128, 0, },  //glyph '/' code=14
{ 4, 96, 144, 144, 144, 96, 0, }, //glyph '0' code=15
{ 3, 64, 192, 64, 64, 224, 0, },  //glyph '1' code=16
{ 4, 224, 16, 96, 128, 240, 0, }, //glyph '2' code=17
{ 4, 224, 16, 96, 16, 224, 0, },  //glyph '3' code=18
{ 4, 144, 144, 240, 16, 16, 0, }, //glyph '4' code=19
{ 4, 240, 128, 224, 16, 224, 0, },  //glyph '5' code=20
{ 4, 96, 128, 224, 144, 96, 0, }, //glyph '6' code=21
{ 4, 240, 16, 32, 64, 64, 0, }, //glyph '7' code=22
{ 4, 96, 144, 96, 144, 96, 0, },  //glyph '8' code=23
{ 4, 96, 144, 112, 16, 96, 0, },  //glyph '9' code=24
{ 1, 0, 128, 0, 128, 0, 0, }, //glyph ':' code=25
{ 2, 0, 128, 0, 0, 128, 64, },  //glyph ';' code=26
{ 3, 32, 64, 128, 64, 32, 0, }, //glyph '<' code=27
{ 3, 0, 224, 0, 224, 0, 0, }, //glyph '=' code=28
{ 3, 128, 64, 32, 64, 128, 0, },  //glyph '>' code=29
{ 4, 224, 16, 96, 0, 64, 0, },  //glyph '?' code=30
{ 4, 96, 144, 176, 128, 112, 0, },  //glyph '@' code=31
{ 4, 96, 144, 240, 144, 144, 0, },  //glyph 'A' code=32
{ 4, 224, 144, 224, 144, 224, 0, }, //glyph 'B' code=33
{ 4, 112, 128, 128, 128, 112, 0, }, //glyph 'C' code=34
{ 4, 224, 144, 144, 144, 224, 0, }, //glyph 'D' code=35
{ 4, 240, 128, 224, 128, 240, 0, }, //glyph 'E' code=36
{ 4, 240, 128, 224, 128, 128, 0, }, //glyph 'F' code=37
{ 4, 112, 128, 176, 144, 112, 0, }, //glyph 'G' code=38
{ 4, 144, 144, 240, 144, 144, 0, }, //glyph 'H' code=39
{ 3, 224, 64, 64, 64, 224, 0, },  //glyph 'I' code=40
{ 4, 240, 16, 16, 144, 96, 0, },  //glyph 'J' code=41
{ 4, 144, 160, 192, 160, 144, 0, }, //glyph 'K' code=42
{ 4, 128, 128, 128, 128, 240, 0, }, //glyph 'L' code=43
{ 5, 136, 216, 168, 136, 136, 0, }, //glyph 'M' code=44
{ 4, 144, 208, 176, 144, 144, 0, }, //glyph 'N' code=45
{ 4, 96, 144, 144, 144, 96, 0, }, //glyph 'O' code=46
{ 4, 224, 144, 224, 128, 128, 0, }, //glyph 'P' code=47
{ 4, 96, 144, 144, 144, 96, 16, },  //glyph 'Q' code=48
{ 4, 224, 144, 224, 160, 144, 0, }, //glyph 'R' code=49
{ 4, 112, 128, 96, 16, 224, 0, }, //glyph 'S' code=50
{ 3, 224, 64, 64, 64, 64, 0, }, //glyph 'T' code=51
{ 4, 144, 144, 144, 144, 96, 0, },  //glyph 'U' code=52
{ 3, 160, 160, 160, 160, 64, 0, },  //glyph 'V' code=53
{ 5, 136, 168, 168, 168, 80, 0, },  //glyph 'W' code=54
{ 4, 144, 144, 96, 144, 144, 0, },  //glyph 'X' code=55
{ 3, 160, 160, 64, 64, 64, 0, },  //glyph 'Y' code=56
{ 4, 240, 16, 96, 128, 240, 0, }, //glyph 'Z' code=57
{ 2, 192, 128, 128, 128, 192, 0, }, //glyph '[' code=58
{ 5, 128, 64, 32, 16, 8, 0, },  //glyph '\' code=59
{ 2, 192, 64, 64, 64, 192, 0, },  //glyph ']' code=60
{ 5, 32, 80, 136, 0, 0, 0, }, //glyph '^' code=61
{ 4, 0, 0, 0, 0, 240, 0, }, //glyph '_' code=62
{ 2, 128, 64, 0, 0, 0, 0, },  //glyph '`' code=63
{ 3, 0, 224, 32, 224, 224, 0, },  //glyph 'a' code=64
{ 3, 128, 224, 160, 160, 224, 0, }, //glyph 'b' code=65
{ 3, 0, 224, 128, 128, 224, 0, }, //glyph 'c' code=66
{ 3, 32, 224, 160, 160, 224, 0, },  //glyph 'd' code=67
{ 3, 0, 224, 224, 128, 224, 0, }, //glyph 'e' code=68
{ 2, 64, 128, 192, 128, 128, 0, },  //glyph 'f' code=69
{ 3, 0, 224, 160, 224, 32, 224, },  //glyph 'g' code=70
{ 3, 128, 224, 160, 160, 160, 0, }, //glyph 'h' code=71
{ 1, 128, 0, 128, 128, 128, 0, }, //glyph 'i' code=72
{ 2, 0, 192, 64, 64, 64, 128, },  //glyph 'j' code=73
{ 3, 128, 160, 192, 160, 160, 0, }, //glyph 'k' code=74
{ 1, 128, 128, 128, 128, 128, 0, }, //glyph 'l' code=75
{ 5, 0, 248, 168, 168, 168, 0, }, //glyph 'm' code=76
{ 3, 0, 224, 160, 160, 160, 0, }, //glyph 'n' code=77
{ 3, 0, 224, 160, 160, 224, 0, }, //glyph 'o' code=78
{ 3, 0, 224, 160, 160, 224, 128, }, //glyph 'p' code=79
{ 3, 0, 224, 160, 160, 224, 32, },  //glyph 'q' code=80
{ 3, 0, 224, 128, 128, 128, 0, }, //glyph 'r' code=81
{ 2, 0, 192, 128, 64, 192, 0, },  //glyph 's' code=82
{ 3, 64, 224, 64, 64, 64, 0, }, //glyph 't' code=83
{ 3, 0, 160, 160, 160, 224, 0, }, //glyph 'u' code=84
{ 3, 0, 160, 160, 160, 64, 0, },  //glyph 'v' code=85
{ 5, 0, 168, 168, 168, 80, 0, },  //glyph 'w' code=86
{ 3, 0, 160, 64, 160, 160, 0, },  //glyph 'x' code=87
{ 3, 0, 160, 160, 224, 32, 224, },  //glyph 'y' code=88
{ 2, 0, 192, 64, 128, 192, 0, },  //glyph 'z' code=89
{ 3, 96, 64, 192, 64, 96, 0, }, //glyph '{' code=90
{ 1, 128, 128, 128, 128, 128, 0, }, //glyph '|' code=91
{ 3, 192, 64, 96, 64, 192, 0, },  //glyph '}' code=92
{ 3, 96, 192, 0, 0, 0, 0, },  //glyph '~' code=93
{ 4, 48, 64, 224, 64, 240, 0, },  //glyph '£' code=94
};
VGAX vga;

static const char str0[] PROGMEM="         VGAX Hello World!";
static const char str1[] PROGMEM="        by Sandro Maffiodo";
static char x=-VGAX_WIDTH;

void setup() {
  //Serial.begin(9600);
  vga.begin();
  vga.clear(11);
}
void loop() 
{
  vga.clear(11);
  vga.printPROGMEM((byte*)fnt_nanofont_data, FNT_NANOFONT_SYMBOLS_COUNT, FNT_NANOFONT_HEIGHT, 3, 1, str0, -25, VGAX_HEIGHT/2-3, 1);
  vga.printPROGMEM((byte*)fnt_nanofont_data, FNT_NANOFONT_SYMBOLS_COUNT, FNT_NANOFONT_HEIGHT, 3, 1, str1, -25, VGAX_HEIGHT/2+4, 1);

  vga.delay(1000);
}

using the bitfont example and I got ti to work.

How come the first example the text vibrates? How can i fix it.
Also I didn't use resistors for the connections to the Uno because I didn't have the right values and various examples have them connected without resistors. Could this be the cause?

I would like to use the first example so that I can make the text smaller / higher definition text. I also would to change the

2

try adding this to the loop in first code posted, see if it stops..
good luck.. ~q

3

I added a the delay and it didn't change.

4

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