1 files changed, 71 insertions, 0 deletions
diff --git a/libraries/TFT/examples/Arduino/TFTGraph/TFTGraph.ino b/libraries/TFT/examples/Arduino/TFTGraph/TFTGraph.ino
new file mode 100644
index 0000000..39ae49b
--- /dev/null
+++ b/libraries/TFT/examples/Arduino/TFTGraph/TFTGraph.ino
@@ -0,0 +1,71 @@
+/*
+
+ TFT Graph
+ 
+ This example for an Arduino screen reads 
+ the value of an analog sensor on A0, and 
+ graphs the values on the screen.
+ 
+ This example code is in the public domain.
+ 
+ Created 15 April 2013 by Scott Fitzgerald
+ 
+ http://arduino.cc/en/Tutorial/TFTGraph
+ 
+ */
+
+#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 
+
+TFT TFTscreen = TFT(cs, dc, rst);
+
+// position of the line on screen
+int xPos = 0;
+
+void setup(){
+  // initialize the serial port
+  Serial.begin(9600);
+
+  // initialize the display
+  TFTscreen.begin();
+
+  // clear the screen with a pretty color
+  TFTscreen.background(250,16,200); 
+}
+
+void loop(){
+  // read the sensor and map it to the screen height
+  int sensor = analogRead(A0);
+  int drawHeight = map(sensor,0,1023,0,TFTscreen.height());
+  
+  // print out the height to the serial monitor
+  Serial.println(drawHeight);
+  
+  // draw a line in a nice color
+  TFTscreen.stroke(250,180,10);
+  TFTscreen.line(xPos, TFTscreen.height()-drawHeight, xPos, TFTscreen.height());
+
+  // if the graph has reached the screen edge
+  // erase the screen and start again
+  if (xPos >= 160) {
+    xPos = 0;
+    TFTscreen.background(250,16,200); 
+  } 
+  else {
+    // increment the horizontal position:
+    xPos++;
+  }
+
+  delay(16);
+}
+