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libraries/M5GFX/examples/Basic/TextLogScroll/TextLogScroll.ino

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+
+#include <M5GFX.h>
+M5GFX display;
+
+//#include <M5UnitOLED.h>
+//M5UnitOLED display; // default setting
+//M5UnitOLED display ( 21, 22, 400000 ); // SDA, SCL, FREQ
+
+//#include <M5UnitLCD.h>
+//M5UnitLCD display;  // default setting
+//M5UnitLCD display  ( 21, 22, 400000 ); // SDA, SCL, FREQ
+
+//#include <M5UnitGLASS2.h>
+//M5UnitGLASS2 display;  // default setting
+//M5UnitGLASS2 display ( 21, 22, 400000 ); // SDA, SCL, FREQ
+
+//#include <M5AtomDisplay.h>
+//M5AtomDisplay display;  // default setting
+//M5AtomDisplay display ( 320, 180 ); // width, height
+
+static constexpr char text0[] = "hello world";
+static constexpr char text1[] = "this";
+static constexpr char text2[] = "is";
+static constexpr char text3[] = "text";
+static constexpr char text4[] = "log";
+static constexpr char text5[] = "vertical";
+static constexpr char text6[] = "scroll";
+static constexpr char text7[] = "sample";
+static constexpr const char* text[] = { text0, text1, text2, text3, text4, text5, text6, text7 };
+
+//*
+/// Example of using canvas
+M5Canvas canvas(&display);
+void setup(void)
+{
+  display.begin();
+
+  if (display.isEPD())
+  {
+    display.setEpdMode(epd_mode_t::epd_fastest);
+    display.invertDisplay(true);
+    display.clear(TFT_BLACK);
+  }
+  if (display.width() < display.height())
+  {
+    display.setRotation(display.getRotation() ^ 1);
+  }
+
+  canvas.setColorDepth(1); // mono color
+  canvas.createSprite(display.width(), display.height());
+  canvas.setTextSize((float)canvas.width() / 160);
+  canvas.setTextScroll(true);
+}
+
+void loop(void)
+{
+  static int count = 0;
+
+  canvas.printf("%04d:%s\r\n", count, text[count & 7]);
+  canvas.pushSprite(0, 0);
+  ++count;
+}
+
+/*/
+
+/// Example without canvas
+void setup(void)
+{
+  display.begin();
+
+  if (display.isEPD())
+  {
+    display.setEpdMode(epd_mode_t::epd_fastest);
+    display.invertDisplay(true);
+    display.clear(TFT_BLACK);
+  }
+  if (display.width() < display.height())
+  {
+    display.setRotation(display.getRotation() ^ 1);
+  }
+
+  display.setTextSize((float)display.width() / 160);
+  display.setTextScroll(true);
+}
+
+void loop(void)
+{
+  static int count = 0;
+
+  display.printf("%04d:%s\r\n", count, text[count & 7]);
+  ++count;
+}
+//*/