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authorCristian Maglie <c.maglie@bug.st>2013-05-29 18:30:36 +0200
committerCristian Maglie <c.maglie@bug.st>2013-05-29 18:30:36 +0200
commitd90fcca5839d13d57ed527d4009b78d22dafbde7 (patch)
tree768b98af21e5075846184dd3de41ae0c22e75e20 /libraries/TFT/examples/Arduino/TFTDisplayText/TFTDisplayText.ino
parent7207108255a772474b322151cb0fd113e8030afe (diff)
parentef4e8c65373f531ce6d37ff226a21fc9b358ff29 (diff)
Merged 1.0.5
Diffstat (limited to 'libraries/TFT/examples/Arduino/TFTDisplayText/TFTDisplayText.ino')
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diff --git a/libraries/TFT/examples/Arduino/TFTDisplayText/TFTDisplayText.ino b/libraries/TFT/examples/Arduino/TFTDisplayText/TFTDisplayText.ino
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+/*
+ Arduino TFT text example
+
+ This example demonstrates how to draw text on the
+ TFT with an Arduino. The Arduino reads the value
+ of an analog sensor attached to pin A0, and writes
+ the value to the LCD screen, updating every
+ quarter second.
+
+ This example code is in the public domain
+
+ Created 15 April 2013 by Scott Fitzgerald
+
+ http://arduino.cc/en/Tutorial/TFTDisplayText
+
+ */
+
+#include <TFT.h> // Arduino LCD library
+#include <SPI.h>
+
+// pin definition for the Uno
+#define cs 10
+#define dc 9
+#define rst 8
+
+// pin definition for the Leonardo
+// #define cs 7
+// #define dc 0
+// #define rst 1
+
+// create an instance of the library
+TFT TFTscreen = TFT(cs, dc, rst);
+
+// char array to print to the screen
+char sensorPrintout[4];
+
+void setup() {
+
+ // Put this line at the beginning of every sketch that uses the GLCD:
+ TFTscreen.begin();
+
+ // clear the screen with a black background
+ TFTscreen.background(0, 0, 0);
+
+ // write the static text to the screen
+ // set the font color to white
+ TFTscreen.stroke(255,255,255);
+ // set the font size
+ TFTscreen.setTextSize(2);
+ // write the text to the top left corner of the screen
+ TFTscreen.text("Sensor Value :\n ",0,0);
+ // ste the font size very large for the loop
+ TFTscreen.setTextSize(5);
+}
+
+void loop() {
+
+ // Read the value of the sensor on A0
+ String sensorVal = String(analogRead(A0));
+
+ // convert the reading to a char array
+ sensorVal.toCharArray(sensorPrintout, 4);
+
+ // set the font color
+ TFTscreen.stroke(255,255,255);
+ // print the sensor value
+ TFTscreen.text(sensorPrintout, 0, 20);
+ // wait for a moment
+ delay(250);
+ // erase the text you just wrote
+ TFTscreen.stroke(0,0,0);
+ TFTscreen.text(sensorPrintout, 0, 20);
+}
+