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