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| /\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
This is a library for our I2C LED Backpacks
Designed specifically to work with the Adafruit LED Matrix backpacks
----> http://www.adafruit.com/products/872
----> http://www.adafruit.com/products/871
----> http://www.adafruit.com/products/870
These displays use I2C to communicate, 2 pins are required to
interface. There are multiple selectable I2C addresses. For backpacks
with 2 Address Select pins: 0x70, 0x71, 0x72 or 0x73. For backpacks
with 3 Address Select pins: 0x70 thru 0x77
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
#include <Wire.h>
#include <Adafruit\_GFX.h>
#include "Adafruit\_LEDBackpack.h"
Adafruit_8x8matrix matrix = Adafruit\_8x8matrix();
void setup() {
Serial.begin(9600);
Serial.println("8x8 LED Matrix Test");
matrix.begin(0x70); // pass in the address
}
static const uint8\_t PROGMEM
smile_bmp[] =
{ B00111100,
B01000010,
B10100101,
B10000001,
B10100101,
B10011001,
B01000010,
B00111100 },
neutral_bmp[] =
{ B00111100,
B01000010,
B10100101,
B10000001,
B10111101,
B10000001,
B01000010,
B00111100 },
frown_bmp[] =
{ B00111100,
B01000010,
B10100101,
B10000001,
B10011001,
B10100101,
B01000010,
B00111100 };
void loop() {
matrix.clear();
matrix.drawBitmap(0, 0, smile_bmp, 8, 8, LED_ON);
matrix.writeDisplay();
delay(500);
matrix.clear();
matrix.drawBitmap(0, 0, neutral_bmp, 8, 8, LED_ON);
matrix.writeDisplay();
delay(500);
matrix.clear();
matrix.drawBitmap(0, 0, frown_bmp, 8, 8, LED_ON);
matrix.writeDisplay();
delay(500);
matrix.clear(); // clear display
matrix.drawPixel(0, 0, LED_ON);
matrix.writeDisplay(); // write the changes we just made to the display
delay(500);
matrix.clear();
matrix.drawLine(0,0, 7,7, LED_ON);
matrix.writeDisplay(); // write the changes we just made to the display
delay(500);
matrix.clear();
matrix.drawRect(0,0, 8,8, LED_ON);
matrix.fillRect(2,2, 4,4, LED_ON);
matrix.writeDisplay(); // write the changes we just made to the display
delay(500);
matrix.clear();
matrix.drawCircle(3,3, 3, LED_ON);
matrix.writeDisplay(); // write the changes we just made to the display
delay(500);
matrix.setTextSize(1);
matrix.setTextWrap(false); // we dont want text to wrap so it scrolls nicely
matrix.setTextColor(LED_ON);
for (int8\_t x=0; x>=-36; x--) {
matrix.clear();
matrix.setCursor(x,0);
matrix.print("Hello");
matrix.writeDisplay();
delay(100);
}
matrix.setRotation(3);
for (int8\_t x=7; x>=-36; x--) {
matrix.clear();
matrix.setCursor(x,0);
matrix.print("World");
matrix.writeDisplay();
delay(100);
}
matrix.setRotation(0);
}
|
