Update README.md

README.md

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 # pySVS
 
-Graphical Python3 program (Tkinter) to control SVS SB-1000PRO Subwoofer parameters using bluetooth interface. For the moment only parameters "Volume", "Phase", Low Pass Filter" and "Room Gain Compensation" are available.   
-
-![alt text](https://i.imgur.com/hT6wXhO.png)
-
+Graphical Python3 program (Tkinter) to control SVS SB-1000PRO Subwoofer parameters using bluetooth interface. Parameters "Volume", "Phase", Low Pass Filter","Room Gain Compensation" Parametric EQ and Presets are available.   
+v3: Totally rewritten. Added Parametric EQ and Presets compatibility. Added command-line options
+![GitHub Logo](https://github.com/logon84/pySVS/blob/master/pic.png)  
+
+```
+    pySVS ' + VERSION + '. Read and set SVS SB1000P Subwoofer values. By Logon84 http://github.com/logon84
+    Run pySVS.py without arguments to launch the GUI
+    USAGE: pySVS.py <-b device> <-m MAC_Address> <parameter1> <value1> <parameter2> <value2> etc...
+    -b dev or --btdevice=dev: Specify a different BT device to use (default is hci0).
+    -m MAC or --mac=MAC: Sets a mac address different to the one set in pySVS.py file.
+    -h or --help: Show this help.
+    -v or --version: Show program version.
+    -e or --encode: Just print built frames based on param values.
+    -d FRAME or --decode=FRAME: Decode values of a frame.
+    PARAMETER LIST:
+    	-l X@Y@Z or --lpf=X@Y@Z: Sets Low Pass Filter to X[0(OFF),1(ON)], Y[freq] and Z[slope].
+    	-q V@W@X@Y@Z or --peq=V@W@X@Y@Z: Sets PEQ V[1..3], W[0(OFF),1(ON)], X[freq], Y[boost] and Z[Qfactor].
+    	-r X@Y@Z or --roomgain=X@Y@Z: Sets RoomGain X[0(OFF),1(ON)], Y[freq] and Z[slope].')
+    	-o X or --volume=X: Sets volume level to X on subwoofer.
+    	-f X or --phase=X: Sets phase level to X on subwoofer.
+    	-k X or --polarity=X: Sets polarity to 0(+) or 1(-) on subwoofer.
+    	-p X or --preset=X: Load preset X[1..4(FACTORY DEFAULT PRESET)] on subwoofer.
+    	To ask subwoofer for one or more values, set parameter value to "A".
+```
+
 The program requires bleak module installed:  
 ```
 pip3 install bleak