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diff --git a/2.3-1/macros/Hardware/RasberryPi/Digital/RPI_digitalWriteByte.sci b/2.3-1/macros/Hardware/RasberryPi/Digital/RPI_digitalWriteByte.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_digitalWriteByte(Byte)
+// Function to set first eight GPIO pins to a particular value
+//
+// Calling Sequence
+//  RPI_digitalWriteByte(Byte)
+//
+// Parameters
+//  Byte: An 8-bit byte to write on the first 8 GPIO pins. Inter from 0 to 255.
+//
+// Description
+//  This writes the 8-bit byte supplied to the first 8 GPIO pins. It’s the fastest way to set all 8 bits at once to a particular value, although it still takes two write operations to the Pi’s GPIO hardware. The state is written from pin7 to pin0.
+//
+//  Note: The MSB-LSB sequence here is opposite to that from RPI_digitalReadByte.
+//
+// Examples
+//  RPI_digitalWriteByte(128)
+// See also
+//  RPI_digitalReadByte, RPI_digitalWrite
+//
+// Authors
+//  Jorawar Singh
+//
+// Bibliography
+//  http://wiringpi.com/reference/
+
+    commande="BtW#1#"+string(Byte)+"#";
+    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