Removed the not needed waitMs() and added a print char command for the oled display

examples/i2c_oled_display/main.c

@@ -153,19 +153,32 @@ int main(int argc, char *argv[])
 	i2cData = 0xAA;
 	
 	i2c_check_device(&i2c_1, &slaveAddress);
-	
+
+	/* Pin Connections of of OLED
+	 * GND = GND
+	 * VCC = 5V
+	 * DO = SCL
+	 * D1 = SDA 
+	 * RES = Require a low to high transition
+	 * DC = GND
+	 * CS = GND
+	 * ADDRESS = 0X3C
+	 * FOR I2C opperation 
+	 *	-> R4 & R1 : Has resistor | R2 & R3 : Has no Resistor 
+	 *	-> R8 Needs to be bridged
+	 */
+
 	ssd1306_begin(&i2c_1, SSD1306_SWITCHCAPVCC, SSD1306_I2C_ADDRESS);
 	ssd1306_display(&i2c_1); //Adafruit logo is visible
 	ssd1306_clearDisplay(&i2c_1);
 	delayMs(2000);
 	ssd1306_display(&i2c_1);
 
-/* Work on progress 	
-	char* text = "This is demo for SSD1306 i2c driver for Raspberry Pi";
-	ssd1306_drawString(text);
+	ssd1306_drawChar(10, 5, 'K' , WHITE, 1);
+	ssd1306_drawChar(16, 5, 'E' , WHITE, 1);
+	ssd1306_drawChar(22, 5, 'D' , WHITE, 1);
 	ssd1306_display(&i2c_1);
 	delayMs(2000);
-*/ 
 
 	print_Usart(usart2, "\n\r"); 
 	print_Usart(usart2, "All Is Working fine ");