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libraries/hd44780/examples/ioClass/hd44780_pinIO/hd44780examples/LCDcharset/LCDcharset.ino

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+// ----------------------------------------------------------------------------
+// LCDcharset - Display LCD character set for hd44780 hd44780_pinIO i/o class
+// ----------------------------------------------------------------------------
+// This sketch is a wrapper sketch for the hd44780 library example LCDcharset.
+// Note:
+// This is not a normal sketch and should not be used as model or example
+// of hd44780 library sketches.
+// This sketch is simple wrapper that declares the needed lcd object for the
+// hd44780 library sketch.
+// It is provided as a convenient way to run a pre-configured sketch for
+// the i/o class.
+// The source code for this sketch lives in hd44780 examples:
+// hd44780/examples/hd44780examples/LCDcharset/LCDcharset.ino
+// From IDE:
+// [File]->Examples-> hd44780/hd44780examples/LCDcharset
+//
+
+#include <hd44780.h>
+#include <hd44780ioClass/hd44780_pinIO.h>
+
+// define the LCD geometry
+#define LCD_COLS 16
+#define LCD_ROWS 2
+
+// declare Arduino pins used for LCD functions
+// and the lcd object
+
+// Note: this can be with or without backlight control:
+
+// without backlight control:
+// note that ESP8266 based arduinos must use the Dn defines rather than
+// raw pin numbers.
+#if defined (ARDUINO_ARCH_ESP8266)
+const int rs=D8, en=D9, db4=D4, db5=D5, db6=D6, db7=D7; // esp8266 Lolin/Wemos D1 R1 (uno form factor)
+#elif defined(ARDUINO_ARCH_ESP32)
+// note: GPIO12 needs a pulldown resistor
+const int rs=12, en=13, db4=17, db5=16, db6=27, db7=14; // esp32 espduino32 D1 R32 (uno form factor)
+#else
+const int rs=8, en=9, db4=4, db5=5, db6=6, db7=7;       // for all other devices
+#endif
+hd44780_pinIO lcd(rs, en, db4, db5, db6, db7);
+
+//with backlight control:
+//	backlight control requires two additional parameters
+//	- an additional pin to control the backlight
+//	- backlight active level which tells the library the level
+//		needed to turn on the backlight.
+//		note: If the backlight control pin supports PWM, dimming can be done
+//			using setBacklight(dimvalue);
+//
+//	WARNING: some lcd keypads have a broken backlight circuit
+//		If you have a lcd keypad, it is recommended that you first run the
+//		LCDKeypadCheck sketch to verify that the backlight circuitry
+//		is ok before enabling backlight control.
+//		However, the hd44780_PinIO class will autodetect the issue and
+//		work around it in s/w. If the backlight circuitry is broken,
+//		dimming will not be possible even if the backlight pin supports PWM.
+//
+#if defined (ARDUINO_ARCH_ESP8266)
+// esp8266 Lolin/Wemos D1 R1 (uno form factor)
+//const int rs=D8, en=D9, db4=D4, db5=D5, db6=D6, db7=D7, bl=D10, blLevel=HIGH;
+#elif defined(ARDUINO_ARCH_ESP32)
+// esp32 espduino32 D1 R32 (uno form factor)
+// note: GPIO12 needs a pulldown resistor
+//const int rs=12, en=13, db4=17, db5=16, db6=27, db7=14, bl=5, blLevel=HIGH;
+#else
+//const int rs=8, en=9, db4=4, db5=5, db6=6, db7=7, bl=10, blLevel=HIGH;
+#endif
+//hd44780_pinIO lcd(rs, en, db4, db5, db6, db7, bl, blLevel);
+
+// tell the hd44780 sketch the lcd object has been declared
+#define HD44780_LCDOBJECT
+
+// include the hd44780 library LCDcharset sketch source code
+#include <examples/hd44780examples/LCDcharset/LCDcharset.ino>