diff options
Diffstat (limited to 'libraries/TFT/examples/Arduino/TFTBitmapLogo/TFTBitmapLogo.ino')
-rw-r--r-- | libraries/TFT/examples/Arduino/TFTBitmapLogo/TFTBitmapLogo.ino | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/libraries/TFT/examples/Arduino/TFTBitmapLogo/TFTBitmapLogo.ino b/libraries/TFT/examples/Arduino/TFTBitmapLogo/TFTBitmapLogo.ino new file mode 100644 index 0000000..da7a94d --- /dev/null +++ b/libraries/TFT/examples/Arduino/TFTBitmapLogo/TFTBitmapLogo.ino @@ -0,0 +1,108 @@ +/* + + Arduino TFT Bitmap Logo example + + This example reads an image file from a micro-SD card + and draws it on the screen, at random locations. + + In this sketch, the Arduino logo is read from a micro-SD card. + There is a .bmp file included with this sketch. + - open the sketch folder (Ctrl-K or Cmd-K) + - copy the "arduino.bmp" file to a micro-SD + - put the SD into the SD slot of the Arduino TFT module. + + This example code is in the public domain. + + Created 19 April 2013 by Enrico Gueli + + http://arduino.cc/en/Tutorial/TFTBitmapLogo + + */ + +// include the necessary libraries +#include <SPI.h> +#include <SD.h> +#include <TFT.h> // Arduino LCD library + +// pin definition for the Uno +#define sd_cs 4 +#define lcd_cs 10 +#define dc 9 +#define rst 8 + +// pin definition for the Leonardo +//#define sd_cs 8 +//#define lcd_cs 7 +//#define dc 0 +//#define rst 1 + +TFT TFTscreen = TFT(lcd_cs, dc, rst); + +// this variable represents the image to be drawn on screen +PImage logo; + + +void setup() { + // initialize the GLCD and show a message + // asking the user to open the serial line + TFTscreen.begin(); + TFTscreen.background(255, 255, 255); + + TFTscreen.stroke(0, 0, 255); + TFTscreen.println(); + TFTscreen.println("Arduino TFT Bitmap Example"); + TFTscreen.stroke(0, 0, 0); + TFTscreen.println("Open serial monitor"); + TFTscreen.println("to run the sketch"); + + // initialize the serial port: it will be used to + // print some diagnostic info + Serial.begin(9600); + while (!Serial) { + // wait for serial line to be ready + } + + // clear the GLCD screen before starting + TFTscreen.background(255, 255, 255); + + // try to access the SD card. If that fails (e.g. + // no card present), the setup process will stop. + Serial.print("Initializing SD card..."); + if (!SD.begin(sd_cs)) { + Serial.println("failed!"); + return; + } + Serial.println("OK!"); + + // initialize and clear the GLCD screen + TFTscreen.begin(); + TFTscreen.background(255, 255, 255); + + // now that the SD card can be access, try to load the + // image file. + logo = TFTscreen.loadImage("arduino.bmp"); + if (!logo.isValid()) { + Serial.println("error while loading arduino.bmp"); + } +} + +void loop() { + // don't do anything if the image wasn't loaded correctly. + if (logo.isValid() == false) { + return; + } + + Serial.println("drawing image"); + + // get a random location where to draw the image. + // To avoid the image to be draw outside the screen, + // take into account the image size. + int x = random(TFTscreen.width() - logo.width()); + int y = random(TFTscreen.height() - logo.height()); + + // draw the image to the screen + TFTscreen.image(logo, x, y); + + // wait a little bit before drawing again + delay(1500); +} |