Merge branch 'master' of https://github.com/marabesi/arduino-php-wrapper

Author: marabesi

README.md

@@ -40,10 +40,22 @@ print file_put_contents('arduino://hello Arduino');
 
 You can use in your project in a OOP style
 
+### Sending data
+
 ``` php
 $writer = new Arduino\Writer(new Arduino\Wrapper());
 $bytes = $writer->out('ttyUSB0', 'from oop');
 ```
+### Reading data
+
+``` php
+$arduino = new \Arduino\Wrapper();
+
+$writer = new \Arduino\Reader($arduino);
+while (true) {
+    print $writer->from('/dev/cu.usbmodem1411');
+}
+```
 
 ## Improvements