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

[microicRI]

Hi,
arduino IDE 1.8.19
ESP32 + OLED128x64

// Test for minimum program size.

#include <Wire.h>
#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]

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

Also long lines are truncated.

[microicRI]

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. — Reply to this email directly, view it on GitHub <#87 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ALB7X4YXGIFA26FUE2TJ5E3U6C7GDANCNFSM5P2CWQJA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[greiman]

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.