deleted old arduino files and added some text to the readme

README.md

@@ -6,6 +6,11 @@ the [php_serial.class.php](http://code.google.com/p/php-serial/) is used.
 
 Why another solution? I didn't get the other work :-)
 
+What can be done?
+
+With the first version its possible to send different values with one command. 
+So, you can take your light on and of, or even dimm it.
+
 ## Install
 
 ### Webserver
@@ -18,20 +23,34 @@ For Rasperry Pi look at this tutorial http://www.raspberrypi.org/documentation/r
 Clone the repository in your htdocs folder an try to open it. For example with http://localhost/homerrr/.
 
 ### set permissions for serial 
-To allow access to the serial port of your device, you have to chmod 777 the driver for the serial.
+To allow access to the serial port of your device, you have to chmod 777 the driver for the serial. You can 
+find the right serial port with the arduino ide.  At the bottom right is written to which 
+port your arduino is connected. In my case it was "/dev/cu.usbmodem1421" for mac and "/dev/ttyACMO" for my raspery.
+This connection must be set in the "initSerial.php" file in $serial->deviceSet. Look at the examples there.
 
 ### Push code on the arduino
 Use the arduino software to push the code (arduino/arduino_homerrr/arduino_homerrr.ino) on the arduino. 
 
 ### Serial Monitor or disable reset of arduino
-Open the arduino serial monitor - otherwise sending won't have any effect. Other solution: Put a 100 Ohm resistor between the 5v and the reset pin of the arduino.
-
-## Inspiration and Thanks!
-This Project is heavily inspired by a few other projects:
-heimcontrol.js - http://ni-c.github.io/heimcontrol.js/ - i wanted to have something like this that I understand
-arduinoPi - https://github.com/JanStevens/ArduinoPi-Controller - here I understood the working of the php_serial.class - thanks a lot! 
-
+Open the arduino serial monitor - otherwise sending won't have any effect. 
+Another solution: Put a 100 Ohm resistor between the 5v and the reset pin of 
+the arduino to disable the autoreset.
+And the solution that worked best for me: put a 100qf transistor between the RESET and the GND Pin.
+Or google "disable arduino reset".
 
+### Tricky things
+- It took me a lot of time to find a working baud rate and a working arduino code. The best working baud rate for me is 9600.
+- Another important thing: After opening the serial connection in the initSerial.php file, a "usleep(200000);" is the best solution, 
+that the serial connection is realy open and no data is send too early.
+- add a while (!Serial); to your arduino setup code. This is the second solution, which works fine with the usleep. So nearly every 
+signal goes through. 
 
+### keep your raspery connected to the internet
 
+The Frontend need some google fonts and jquery. If you don't have an internet connection, comment the js files and 
+the google font files out.
 
+## Inspiration and Thanks!
+This Project is heavily inspired by a few other projects:
+heimcontrol.js - http://ni-c.github.io/heimcontrol.js/ - i wanted to have something like this that I understand
+arduinoPi - https://github.com/JanStevens/ArduinoPi-Controller - here I understood the working of the php_serial.class - thanks a lot! 

initSerial.php

@@ -7,9 +7,10 @@
 // for mac
 $serial->deviceSet("/dev/cu.usbmodem1421");
 // for rasperry
-$serial->deviceSet("/dev/ttyACMO");
+//$serial->deviceSet("/dev/ttyACMO");
 $serial->confBaudRate(9600);
 $serial->deviceOpen();
+// add the sleep to wait until the connection is realy open
 usleep(200000);
 $pin = $_GET['pin'];
 $value = $_GET['value'];