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diff --git a/2.3-1/macros/Hardware/RasberryPi/gertBoard/RPI_gertboardAnalogWrite.sci b/2.3-1/macros/Hardware/RasberryPi/gertBoard/RPI_gertboardAnalogWrite.sci
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+// Copyright (C) 2017 - IIT Bombay - FOSSEE
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+
+function RPI_gertboardAnalogWrite(pin,value)
+// Function to write voltage value to pins on gertboard
+//
+// Calling Sequence
+//  RPI_gertboardAnalogWrite(pin,value)
+//
+// Parameters
+//  pin  : the pin to read the voltage from. Numbering follows the pinBase from RPI_gertboardSetup function.
+//  value: voltage value to write
+//
+// Description
+//  After initialinzing the pinBase using the RPI_gertboeardSetup function, writing pinBase + 0 outputs to the first analog output channel. (Pin AD0).
+//
+// Examples
+//  RPI_gertboardAnalogWrite(100,100)
+// See also
+//  RPI_gertboardAnalogSetup, RPI_gertboardAnalogRead, RPI_gertboardSPISetup
+//
+// Authors
+//  Jorawar Singh
+//
+// Bibliography
+//  http://wiringpi.com/reference/
+//  http://pi4j.com/apidocs/com/pi4j/wiringpi/Gertboard.html
+
+    commande="gAW#2#"+string(pin)+"#"+string(value)+"#";
+    if getos=="Linux" then
+        unix_w("python -c ""import socket;s=socket.socket();s.connect((''"+RPI_piAdress+"'',9077));s.send(''"+commande+"'');print(s.recv(1024));s.close()""");
+    elseif getos=="Windows" then
+        RPI_winR=dos("python -c ""import socket;s=socket.socket();s.connect((''"+RPI_piAdress+"'',9077));s.send(''"+commande+"'');print(s.recv(1024));s.close()""");
+    end
+endfunction