aboutsummaryrefslogtreecommitdiff
path: root/libraries/LiquidCrystal/examples/CustomCharacter
diff options
context:
space:
mode:
Diffstat (limited to 'libraries/LiquidCrystal/examples/CustomCharacter')
-rw-r--r--libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino138
1 files changed, 138 insertions, 0 deletions
diff --git a/libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino b/libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino
new file mode 100644
index 0000000..d3ce479
--- /dev/null
+++ b/libraries/LiquidCrystal/examples/CustomCharacter/CustomCharacter.ino
@@ -0,0 +1,138 @@
+/*
+ LiquidCrystal Library - Custom Characters
+
+ Demonstrates how to add custom characters on an LCD display.
+ The LiquidCrystal library works with all LCD displays that are
+ compatible with the Hitachi HD44780 driver. There are many of
+ them out there, and you can usually tell them by the 16-pin interface.
+
+ This sketch prints "I <heart> Arduino!" and a little dancing man
+ to the LCD.
+
+ The circuit:
+ * LCD RS pin to digital pin 12
+ * LCD Enable pin to digital pin 11
+ * LCD D4 pin to digital pin 5
+ * LCD D5 pin to digital pin 4
+ * LCD D6 pin to digital pin 3
+ * LCD D7 pin to digital pin 2
+ * LCD R/W pin to ground
+ * 10K potentiometer:
+ * ends to +5V and ground
+ * wiper to LCD VO pin (pin 3)
+ * 10K poterntiometer on pin A0
+
+ created21 Mar 2011
+ by Tom Igoe
+ Based on Adafruit's example at
+ https://github.com/adafruit/SPI_VFD/blob/master/examples/createChar/createChar.pde
+
+ This example code is in the public domain.
+ http://www.arduino.cc/en/Tutorial/LiquidCrystal
+
+ Also useful:
+ http://icontexto.com/charactercreator/
+
+ */
+
+// include the library code:
+#include <LiquidCrystal.h>
+
+// initialize the library with the numbers of the interface pins
+LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
+
+// make some custom characters:
+byte heart[8] = {
+ 0b00000,
+ 0b01010,
+ 0b11111,
+ 0b11111,
+ 0b11111,
+ 0b01110,
+ 0b00100,
+ 0b00000
+};
+
+byte smiley[8] = {
+ 0b00000,
+ 0b00000,
+ 0b01010,
+ 0b00000,
+ 0b00000,
+ 0b10001,
+ 0b01110,
+ 0b00000
+};
+
+byte frownie[8] = {
+ 0b00000,
+ 0b00000,
+ 0b01010,
+ 0b00000,
+ 0b00000,
+ 0b00000,
+ 0b01110,
+ 0b10001
+};
+
+byte armsDown[8] = {
+ 0b00100,
+ 0b01010,
+ 0b00100,
+ 0b00100,
+ 0b01110,
+ 0b10101,
+ 0b00100,
+ 0b01010
+};
+
+byte armsUp[8] = {
+ 0b00100,
+ 0b01010,
+ 0b00100,
+ 0b10101,
+ 0b01110,
+ 0b00100,
+ 0b00100,
+ 0b01010
+};
+void setup() {
+ // create a new character
+ lcd.createChar(0, heart);
+ // create a new character
+ lcd.createChar(1, smiley);
+ // create a new character
+ lcd.createChar(2, frownie);
+ // create a new character
+ lcd.createChar(3, armsDown);
+ // create a new character
+ lcd.createChar(4, armsUp);
+
+ // set up the lcd's number of columns and rows:
+ lcd.begin(16, 2);
+ // Print a message to the lcd.
+ lcd.print("I ");
+ lcd.write(0);
+ lcd.print(" Arduino! ");
+ lcd.write(1);
+
+}
+
+void loop() {
+ // read the potentiometer on A0:
+ int sensorReading = analogRead(A0);
+ // map the result to 200 - 1000:
+ int delayTime = map(sensorReading, 0, 1023, 200, 1000);
+ // set the cursor to the bottom row, 5th position:
+ lcd.setCursor(4, 1);
+ // draw the little man, arms down:
+ lcd.write(3);
+ delay(delayTime);
+ lcd.setCursor(4, 1);
+ // draw him arms up:
+ lcd.write(4);
+ delay(delayTime);
+}
+
+
+