Diff: main.cpp

Revision:

0:8f6ff5bb5a2d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Dec 23 16:58:19 2015 +0000
@@ -0,0 +1,57 @@
+#include "mbed.h"
+#include "TextLCD.h"
+
+Serial pc(SERIAL_TX, SERIAL_RX); 
+AnalogIn button(A0);    // Init button (SELECT, LEFT, UP, DOWN, RIGHT)
+// LCD (RS, E, D4, D5, D6, D7);
+TextLCD lcd(D8, D9, D4, D5, D6, D7);
+PwmOut backlight(D10);  // Backlight LCD
+DigitalOut led(LED1);
+
+int main() {
+    
+    // Set backlight period and duty cycle 
+    backlight.period(0.002);
+    backlight = 1;
+    
+    
+    lcd.cls();                      // Clear LCD
+    lcd.locate(1,0);                // Set locate (1 row, 2 column)
+    lcd.printf("LCD Key Shield");
+    wait(1);
+    
+    int meas;
+    
+    while(1) {
+        led = (led == 1) ? 0 : 1;
+
+        meas = button.read() * 1000; // Read the analog input value (value from 0.0 to 1.0) and convert to int value (from 0 to 1000)
+        
+        lcd.cls();
+        lcd.locate(0,0);
+        lcd.printf("Press button");
+        lcd.locate(0,1);
+        
+        if (meas < 50) { 
+            lcd.printf("BUTTON: Right ");
+            backlight = 0.5;        // Set 50% backlight 
+        }
+        else if (meas < 210) { 
+            lcd.printf("BUTTON: Up");
+            backlight = 1;          // Power ON backlight
+        } 
+        else if (meas < 460){ 
+            lcd.printf("BUTTON: Down");
+            backlight = 0;          // Power OFF backlight
+        } 
+        else if (meas < 720){ 
+            lcd.printf("BUTTON: Left"); 
+        } 
+        else if (meas > 950){ 
+            lcd.printf("BUTTON: Select");
+        }
+        pc.printf("BUTTON: %4d\n", meas);
+        
+        wait(0.1);
+    }
+}
\ No newline at end of file