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Autoscroll example working (tweaked for 20x2)

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1 parent c85d75a commit 50048d2d5d0c770c7f450b47dcb336ffcaae86e1 @ladyada ladyada committed Mar 20, 2011
Showing with 25 additions and 33 deletions.
  1. +22 −30 examples/Autoscroll/Autoscroll.pde
  2. +3 −3 examples/HelloWorld/HelloWorld.pde
@@ -1,25 +1,19 @@
/*
- LiquidCrystal Library - Autoscroll
+ SPI_VFD Library - Autoscroll
- Demonstrates the use a 16x2 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.
+ Demonstrates the use a 20x2 VFD display. The SPI_VFD
+ library works with all VFD displays that are compatible with the
+ NEC PD16314 driver and has the SPI pins brought out
This sketch demonstrates the use of the autoscroll()
and noAutoscroll() functions to make new text scroll or not.
- 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 resistor:
- * ends to +5V and ground
- * wiper to LCD VO pin (pin 3)
+ The circuit:
+ * VFD Data to digital pin 2
+ * VFD Clock to digital pin 3
+ * VFD Chip select to digital pin 4
+ * VFD VCC (power) to 5V
+ * VFD Ground (power) to Ground
Library originally added 18 Apr 2008
by David A. Mellis
@@ -31,43 +25,41 @@
by Tom Igoe
This example code is in the public domain.
-
- http://www.arduino.cc/en/Tutorial/LiquidCrystal
*/
// include the library code:
-#include <LiquidCrystal.h>
+#include <SPI_VFD.h>
// initialize the library with the numbers of the interface pins
-LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
+SPI_VFD vfd(2, 3, 4);
void setup() {
- // set up the LCD's number of columns and rows:
- lcd.begin(16,2);
+ // set up the VFD's number of columns and rows:
+ vfd.begin(20, 2);
}
void loop() {
// set the cursor to (0,0):
- lcd.setCursor(0, 0);
+ vfd.setCursor(0, 0);
// print from 0 to 9:
for (int thisChar = 0; thisChar < 10; thisChar++) {
- lcd.print(thisChar);
+ vfd.print(thisChar);
delay(500);
}
- // set the cursor to (16,1):
- lcd.setCursor(16,1);
+ // set the cursor to (20,1):
+ vfd.setCursor(20,1);
// set the display to automatically scroll:
- lcd.autoscroll();
+ vfd.autoscroll();
// print from 0 to 9:
for (int thisChar = 0; thisChar < 10; thisChar++) {
- lcd.print(thisChar);
+ vfd.print(thisChar);
delay(500);
}
// turn off automatic scrolling
- lcd.noAutoscroll();
+ vfd.noAutoscroll();
// clear screen for the next loop:
- lcd.clear();
+ vfd.clear();
}
@@ -5,7 +5,7 @@
library works with all VFD displays that are compatible with the
NEC PD16314 driver and has the SPI pins brought out
- This sketch prints "Hello World!" to the LCD
+ This sketch prints "Hello World!" to the VFD
and shows the time.
The circuit:
@@ -34,9 +34,9 @@
SPI_VFD vfd(2, 3, 4);
void setup() {
- // set up the LCD's number of columns and rows:
+ // set up the VFD's number of columns and rows:
vfd.begin(20, 2);
- // Print a message to the LCD.
+ // Print a message to the VFD.
vfd.print("hello, world!");
}

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