Diff: OLEDDisplay.h

Revision:

0:1dee22d82bd2

diff -r 000000000000 -r 1dee22d82bd2 OLEDDisplay.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OLEDDisplay.h	Fri May 27 16:40:07 2016 +0000
@@ -0,0 +1,105 @@
+/* IoTKit OLED Display Library
+ * Copyright (c) 2016 Marcel mc-b Bernet
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+#include "mbed.h"
+#include <stdarg.h>
+#include "Adafruit_SSD1306.h"
+
+#ifndef OLED_DISPLAY
+#define OLED_DISPLAY
+
+/** OLED Display 
+ *
+ * Vereinfachte Version zur Ansteuerung eines Displays
+ * auf Basis von I2C und SSD1306 Interface
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "OLEDDisplay.h"
+ * 
+ * DigitalOut led( D10 );
+ * OLEDDisplay oled;
+ * 
+ * int main()
+ * {
+ *     int i = 0;
+ *     oled.clear();
+ *     oled.printf( "Test\r\n" );
+ *     
+ *     while (true) 
+ *     {
+ *         oled.cursor( 1, 0 );
+ *         oled.printf( "ON %d, %d\n", led.read(), i );
+ *         led = 1;
+ *         wait( 1.0f ); 
+ *         
+ *         oled.cursor( 2, 0 );
+ *         oled.printf( "OFF %d, %d\n", led.read(), i );
+ *         led = 0;
+ *         i++;
+ *         wait( 1.0f );
+ *     }
+ * }
+ * @endcode
+ */
+
+class OLEDDisplay
+{
+public:
+    OLEDDisplay( PinName rst = D9, PinName sca = D14, PinName scl = D15, uint8_t addr = 0x78 ) : i2c( sca, scl ), oled( i2c, rst, addr )
+    {
+    }
+    
+    /** clear Display */
+    void clear()
+    {
+        oled.clearDisplay();
+        oled.setTextCursor( 0, 0 );                
+    }
+    /** Set the display rotation, 1 = down, 2 = up, 3 = left, or 4 = right*/
+    void setRotation(uint8_t r)
+    {
+        oled.setRotation( r );
+    }
+    
+    /** printf formatted with display */
+    void printf( const char *format, ... )
+    {
+        static char buffer[128];
+        
+        va_list args;
+        va_start(args, format);
+        vsprintf(buffer, format, args);
+        va_end(args);
+        
+        oled.printf( buffer );
+        oled.display();
+    }
+
+    /// Set the text cursor location, based on the size of the text
+    void cursor( int16_t y, int16_t x ) 
+    { 
+        oled.setTextCursor( x * 6 , y * 8 ); 
+    }
+
+    
+private:
+        I2C i2c;
+        Adafruit_SSD1306_I2c oled;
+};
+
+#endif // OLED_DISPLAY
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