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--- arduino:displays_for_classic_arduinos:display_ssd1306_oled_u8glib.ino [2018/01/28 04:05] – created mithat
+++ arduino:displays_for_classic_arduinos:display_ssd1306_oled_u8glib.ino [2018/01/28 04:09] (current) – mithat
@@ Line 1: / Line 1: @@
+<file c++ display_SSD1306_OLED_u8glib.ino>
 /*
- * display_SSD1306_OLED_u8g2.ino
+ * display_SSD1306_OLED_u8glib.ino
  *
  * Test screen update speed with large solid fonts on
  * a 128x64 OLED screen that uses the SD1306 chip.
  *
- * Consumes 46% of program storage space and
+ * Consumes 56% of program storage space and
- * 28% of dynamic memory on a Nano.
+ * 13% of dynamic memory on a Nano.
  *
  * Mithat Konar
  */
-#include <U8g2lib.h>
+#include "U8glib.h"
 /*
@@ Line 30: / Line 32: @@
                    RESET_PIN = 8;
-U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI disp = U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI(U8G2_R0, CS_PIN, DC_PIN, RESET_PIN);
+U8GLIB_SSD1306_128X64 disp(CS_PIN, DC_PIN, RESET_PIN);   // HW SPI
 unsigned int counter = 80;
@@ Line 36: / Line 38: @@
 void setup(void) {
-  disp.begin();
   disp.setColorIndex(1);
 }
@@ Line 42: / Line 43: @@
 void loop(void) {
   counter = (counter + 1) % 1000;
   // picture loop
   disp.firstPage();
   do {
-    disp.setFont(u8g2_font_6x13_tr);
-    disp.drawStr(0, 13, "SSD1306 u8g2");
+    disp.setFont(u8g_font_unifont);
+    disp.drawStr(0, 13, "SSD1306 u8glib");
-    disp.setFont(u8g2_font_logisoso46_tr);
+    disp.setFont(u8g_font_fub25r);  // the largest font with chars that ships w/ lib
     String(counter).toCharArray(dispStr, 4);
     disp.drawStr( 0, 63, dispStr);
   } while ( disp.nextPage() );
-  /* inherent frame rate is about 13 fps with 16 MHz processor
+  // rebuild the picture after some delay
-     (without additional delay). */
   delay(500);
 }
+</file>