| /* | |
| 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://www.arduino.cc/en/Tutorial/TFTBitmapLogo | |
| */ | |
| // include the necessary libraries | |
| // pin definition for the Uno | |
| // 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(F("Arduino TFT Bitmap Example")); | |
| TFTscreen.stroke(0, 0, 0); | |
| TFTscreen.println(F("Open serial monitor")); | |
| TFTscreen.println(F("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 port to connect. Needed for native USB port only | |
| } | |
| // 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(F("Initializing SD card...")); | |
| if (!SD.begin(sd_cs)) { | |
| Serial.println(F("failed!")); | |
| return; | |
| } | |
| Serial.println(F("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(F("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(F("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); | |
| } | |