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// ----------------------------------------------------------------------------
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// LCDiSpeed - LCD Interface Speed test for AdaFruit_LiquidCrystal in 4bit mode
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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 example
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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 <Adafruit_LiquidCrystal.h>
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// ugliness to allow this sketch to locate the hd44780 example sketch
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// note: hd44780.h is not needed, it is only included to get its directory on the include path
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#include <hd44780.h>
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#undef hd44780_h // undefine this so the example sketch does not think hd44780 is being used.
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// cols and rows don't have to be exact to still get accurate transfer numbers
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#define LCD_COLS 16
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#define LCD_ROWS 2
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// declare Arduino pins used for LCD functions
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// and the lcd object
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//const int rs=12, en=11, db4=5, db5=4, db6=3, db7=2; // pins used by IDE LiquidCrystal examples
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const int rs=8, en=9, db4=4, db5=5, db6=6, db7=7; // lcd keypad shield pins
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Adafruit_LiquidCrystal lcd(rs, en, db4, db5, db6, db7);
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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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// ----------------------------------------------------------------------------
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// LCDiSpeed - LCD Interface Speed test for Adafruit_LiquidCrystal using i2c
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// ----------------------------------------------------------------------------
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// This sketch is a wrapper sketch for the hd44780 library example LCDiSpeed.
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// Note:
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// This is not a normal sketch and should not be used as model or example
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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 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 <Wire.h>
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#include <Adafruit_LiquidCrystal.h>
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// ugliness to allow this sketch to locate the hd44780 example sketch
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// note: hd44780.h is not needed, it is only included to get its directory on the include path
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#include <hd44780.h>
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#undef hd44780_h // undefine this so the example sketch does not think hd44780 is being used.
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// cols and rows don't have to be exact to still get accurate transfer numbers
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#define LCD_COLS 16
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#define LCD_ROWS 2
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// declare the lcd object
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// Note: The i2c address must match the backpack address
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// and the library only works with the MCP23008 based #292 backpack
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const uint8_t i2cAddr = 0; // default i2c address for #292 board
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Adafruit_LiquidCrystal lcd(i2cAddr);
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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 LCDiSpeed sketch source code
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#include <examples/hd44780examples/LCDiSpeed/LCDiSpeed.ino>
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// ----------------------------------------------------------------------------
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// LCDiSpeed - LCD Interface Speed test for Adafruit_LiquidCrystal using i2c
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// ----------------------------------------------------------------------------
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// This sketch is a wrapper sketch for the hd44780 library example LCDiSpeed.
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// Note:
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// This is not a normal sketch and should not be used as model or example
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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 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 <Wire.h>
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#include <Adafruit_LiquidCrystal.h>
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// ugliness to allow this sketch to locate the hd44780 example sketch
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// note: hd44780.h is not needed, it is only included to get its directory on the include path
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#include <hd44780.h>
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#undef hd44780_h // undefine this so the example sketch does not think hd44780 is being used.
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#if ARDUINO < 157
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#error "This sketch Requires Arduino 1.5.7 or higher"
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#endif
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// NOTE: uses API that only works on IDE 1.5.7 and up
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#define WIRECLOCK 400000L // tell hd44780 example to use this i2c clock rate
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// cols and rows don't have to be exact to still get accurate transfer numbers
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#define LCD_COLS 16
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#define LCD_ROWS 2
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// declare the lcd object
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// Note: The i2c address must match the backpack address
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// and the library only works with the MCP23008 based #292 backpack
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const uint8_t i2cAddr = 0; // default i2c address for #292 board
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Adafruit_LiquidCrystal lcd(i2cAddr);
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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 LCDiSpeed sketch source code
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#include <examples/hd44780examples/LCDiSpeed/LCDiSpeed.ino>
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Adafruit_LiquidCrystal hd44780 examples
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========================================
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The Adafruit_LiquidCrystal library must be installed in order to use these sketches.
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#### The examples are broken up into various sub directories.
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* `4bit`<br>
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Contains example sketches that are for LCDs that are wired up directly to Arduino pins.
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* `I2C`<br>
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Contains example sketches that are for LCDs connected to an Adafruit #292 backpack when using the i2c MCP23008 i/o expander chip to control the LCD.
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* `SPI`<br>
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Contains example sketches that are for LCDs connected to an Adafruit #292 backpack when using the shift register to control the LCD.
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Note: that while adafruit uses the term "SPI" the #292 backpack it is not using SPI.
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It is mearly using a shift register.
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Also, the Adafruit_liquidCrystal library is not using the SPI h/w but rather simply calling the s/w shiftout() function to do the transfer.
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@@ -0,0 +1,37 @@
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// ----------------------------------------------------------------------------
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// LCDiSpeed - LCD Interface Speed test for Adafruit_LiquidCrystal shiftreg mode
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// ----------------------------------------------------------------------------
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// This sketch is a wrapper sketch for the hd44780 library example LCDiSpeed.
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// Note:
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// This is not a normal sketch and should not be used as model or example
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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 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 <Wire.h>
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#include <Adafruit_LiquidCrystal.h>
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// ugliness to allow this sketch to locate the hd44780 example sketch
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// note: hd44780.h is not needed, it is only included to get its directory on the include path
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#include <hd44780.h>
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#undef hd44780_h // undefine this so the example sketch does not think hd44780 is being used.
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// declare the lcd object for shift register mode
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const uint8_t clkPin = 2;
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const uint8_t datPin = 3;
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const uint8_t latPin = 4;
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Adafruit_LiquidCrystal lcd(datPin, clkPin, latPin);
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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 LCDiSpeed sketch source code
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#include <examples/hd44780examples/LCDiSpeed/LCDiSpeed.ino>
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