apply arduino IDE 1.5+ library specs and minor fixes at examples

Examples/pca9554.ino → examples/Blink/Blink.ino

@@ -31,8 +31,8 @@ void setup()
   ioCon1.portMode(ALLOUTPUT); //Set the port as all output
 
   //  Can also set pins individually using 
-  //  ioCon1.pinmode(pin number, Input/Output);
-  //  IE: ioCon1.pinmode(1, INPUT); 
+  //  ioCon1.pinMode(pin number, Input/Output);
+  //  IE: ioCon1.pinMode(1, INPUT); 
 }
 
 
@@ -161,4 +161,10 @@ void loop()
     ioCon1.digitalWritePort(~(1 << i));
     delay(75);
   }
+
+  // You can also read pins (if you set it's mode to INPUT in setup)
+  // byte x = 2; // read pin 2
+  // ioCon1.digitalRead(x); 
+  // Serial.print("pin 2 value is ");
+  // Serial.println(x);
 }

library.properties

@@ -0,0 +1,11 @@
+name=PCA9554
+version=0.0.1
+author=AD0ND <kd6oji@gmail.com>
+maintainer=AD0ND <kd6oji@gmail.com>
+sentence=PCA9554 8 bit I2C port expander arduino/esp library.
+paragraph=
+category=Communication
+url=https://github.com/AD0ND/PCA9554
+architectures=*
+includes=PCA9554.h
+