include

include "SSD1306Ascii.h"

include "SSD1306AsciiWire.h"

// 0X3C+SA0 - 0x3C or 0x3D

define I2C_ADDRESS 0x3C

// Define proper RST_PIN if required.

define RST_PIN -1

char test[20];

SSD1306AsciiWire oled; //------------------------------------------------------------------------------ void setup() { Wire.begin(); Wire.setClock(400000L);

if RST_PIN >= 0

oled.begin(&Adafruit128x64, I2C_ADDRESS, RST_PIN);

else // RST_PIN >= 0

oled.begin(&Adafruit128x64, I2C_ADDRESS);

endif // RST_PIN >= 0

oled.setFont(Adafruit5x7); //System5x7); oled.clear(); oled.print(" Hello world"); delay(2000); oled.clear(); String test_str=""; test_str=("damir"); //oled.set2X(); oled.print("duzina_test_str= "); int duzina_test_str=test_str.length();oled.println(duzina_test_str); oled.println(); // go to next line oled.write('\n'); //oled.print("test_str= ");oled.println(test_str); delay(2000); test_str+="š"; //ŠđĐčČćĆžŽ"); oled.println("duzina_test_str= ");duzina_test_str=test_str.length();oled.println(duzina_test_str);; oled.print("\n");//oled.print(", ");oled.println("test_str= ");oled.println(test_str);

delay(5000); /* for (int n=0;n<256;n++){ oled.clear(); int i=n; oled.print(i); oled.print("= "); oled.print((char)n); delay(500);

}*/

} //------------------------------------------------------------------------------ void loop() {}``

greiman commented 2 years ago

Might be that you are printing characters not in the font. This will cause print to fail.

Also long lines are truncated.

microicRI commented 2 years ago

Thanks for your answer, but there is an example of code together with open cause. Can you point me to program line where are you see that case you mention. Once again thanks for your help. Damir

On Thu, Mar 3, 2022, 2:47 PM Bill Greiman @.***> wrote:

Might be that you are printing characters no in the font. This will cause print to fial.

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greiman commented 2 years ago

char str[] = "š";
void setup() {
  Serial.begin(9600);
  for (uint8_t i = 0; i < strlen(str); i++) {
    Serial.println((uint8_t) str[i], HEX);
  }
}
void loop() {
}

Output is the UFT8 two byte character:

C5
A1

SSD1306Ascii only supports ASCII characters - note the name has Ascii for a reason.

Try this library.

greiman / SSD1306Ascii

oled.println(); not going in new line on display #87