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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_pcf8591Setup(pinBase,i2cAddress)
+// Function for setting up 8-bit PCF8591 Analog IO expander IC
+//
+// Calling Sequence
+// RPI_pcf8591Setup(pinBase,i2cAddress)
+//
+// Parameters
+// pinBase : any number above 64.The consecutive 4 pins will be allocated alongwith.
+// i2cAddress: I2C address obtained using RPI_i2cdetect function
+//
+// Description
+// This function sets up the extension module for the PCF8591 8-bit GPIO expander IC. Can be called multiple times for multiple PCF8591 using different pinBase for each.
+//
+//Specifying the number of pins is not necessary – the PCF8791 has 4 pins – the analog output uses base pin number 0 – the same as analog input 0.
+//
+// Examples
+// RPI_pcf8591Setup(67,64)
+// See also
+// RPI_pcf8574Setup
+//
+// Authors
+// Jorawar Singh
+//
+// Bibliography
+// http://wiringpi.com/reference/
+
+ commande="pf9#2#"+string(pinBase)+"#"+string(i2cAddress)+"#";
+ 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