How Write a Bitmap monochrome in I2C EEPROM 24LCxxx!?

Using Arduino Programming Questions
#1

Hello!
How can I write a monochrome bitmap in an I2C-EEPROM (24LCxxx) for a monochrome display, eg OLED?

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Thank you in advance!

#2

In what form is the bitmap? A byte array? A .bmp file?

Are you able to write to and read from the EEPROM?

#3

I have a 24WC16 home, I played a bit with him: I loaded a text into the EEPROM and read it on the serial but also on an LCD 1602.
I was thinking how I could use this memory, EEPROM, for a symbol, or an image for a display Graphic: OLED, 12864, …

smiley_01.png

#4

Hi all!

I managed to load a 24AA256 HEX file

The library used here is
https://github.com/cyberp/AT24Cx.

Code for loading HEX_demo:

#include <Wire.h>
#include <AT24CX.h>

// EEPROM object
AT24CX mem;

// setup
void setup() {
  // serial init
  Serial.begin(115200);
  Serial.println("AT24CX read/write demo");
  Serial.println("----------------------");
}

// main loop
void loop() {

  // write array of bytes
  byte xy[] = {
    0X00, 0X70, 0X0F, 0XE0, 0X03, 0XE0, 0X01, 0XC0, 0X07, 0X3F, 0X80, 0X07, 0XFE, 0X38, 0X00, 0X00,

  };

  byte yy[] = {
    0X01, 0X80, 0X01, 0X80, 0X01, 0X80, 0X01, 0X80, 0X01, 0X80, 0X01, 0X80, 0X01, 0X82,
  };

  mem.write(0, (byte*)xy, sizeof(xy));

  mem.write(20, (byte*)yy, sizeof(yy));
}

and the EEPROM_demo read code:

// include libraries
#include <Wire.h>
#include <AT24CX.h>

// EEPROM object
AT24CX mem;

// setup
void setup() {
  // serial init
  Serial.begin(115200);
  Serial.println("AT24CX read/write demo");
  Serial.println("----------------------");
}

// main loop
void loop() {
 // read EEPROM
  byte xy[16];
  byte yy[14];

  // read bytes with multiple steps
  Serial.println("Read 16 single bytes starting at address 0 => 0 > 15");
  for (int i = 0; i < sizeof(xy); i++) {
    byte sb = mem.read(0 + i);
    Serial.print("[");
    Serial.print(0+i);
    Serial.print("] = ");
    Serial.println(sb, HEX);
  }
Serial.println(" ");
  Serial.println("Read 14 single bytes starting at address 20 => 20 > 33");
  for (int i = 0; i < sizeof(yy); i++) {
    byte sc = mem.read(20 + i);
    Serial.print("[");
    Serial.print(20+i);
    Serial.print("] = ");
    Serial.println(sc, HEX);
  }
  // Serial.println();

  // stop
  while (1 == 1) {}
}

Now if I managed to load the HEX tab into EEPROM, how can I read and insert the HEX file in
const uint8_t arduino PROGMEM = { sb or sc }; ?

#5