[Libphidget-cvs-commits] CVS: libphidget/src/examples ik2lcd.cc,NONE,1.1

[Jack S. <js...@us...>]

Update of /cvsroot/libphidget/libphidget/src/examples
In directory sc8-pr-cvs1:/tmp/cvs-serv29347/examples

Added Files:
	ik2lcd.cc 
Log Message:
This is a new example to show how to use 2 phidgets together.

It requires an interface kit with 8 digital inputs and a TextLCD

When running, it will accept digital input on phidget and send to the text lcd information about which inputs and what values are changing.


--- NEW FILE: ik2lcd.cc ---
#include <CPhidgetManager.h>
#include <CInterfaceKit.h>
#include <CDigitalIn.h>
#include <CDigitalOut.h>
#include <CAnalogIn.h>
#include <CTextLCD.h>
#include <unistd.h>

static const char *revision="$Revision: 1.1 $";

CUID ikId;
CUID textLCDId;

/**
 * Find the first servo controller we can
 */
void findUsablePhidgets()
{
	{
		// Look for a servo that we can use for all the examples
		vector<CUID> temp=CPhidgetManager::getInstance()->query(LP_INTERFACE_KIT_488);

		if (temp.size()<1)
			throw runtime_error("This application can't run without a phidget interface kit (see http://www.phidgets.com).\n");
	
		ikId=temp[0];

		printf("Interface Kit Controller found: %s\n",ikId.asString().c_str());
	}
	{
		// Look for a servo that we can use for all the examples
		vector<CUID> temp=CPhidgetManager::getInstance()->query(LP_TEXT_LCD);

		if (temp.size()<1)
			throw runtime_error("This application can't run without a phidget text lcd kit (see http://www.phidgets.com).\n");
	
		textLCDId=temp[0];

		printf("Text LCD found: %s\n",textLCDId.asString().c_str());
	}
}

// this shows how to overload a digital input to catch change value events
class CMyDigitalIn : public CDigitalIn
{
	public:
	CTextLCD &_lcd;
	CMyDigitalIn ( const CUID &uid, CTextLCD &lcd) : 
		CDigitalIn(uid), 
		_lcd(lcd)
	{
	}
	void onChange()
	{
		char temp[12];

		_lcd.sendText("         ",0,0);
		_lcd.sendText("         ",1,0);


		sprintf(temp,"Input %d\n",cardinal());
		_lcd.sendText(temp,0,0);

		if (value())
			_lcd.sendText("Value:On ",1,0);
		else
			_lcd.sendText("Value:Off",1,0);
	}
};

main()
{
	try
	{
		char adjusted_version[64];
		memcpy(adjusted_version,revision+11,strlen(revision)-11-2);
		adjusted_version[strlen(revision)-11-2]=0;

		// What we are
		printf("ik_example: code examples of how to communicate with interface kits\n");

		// Get the version number
		printf("Version %s\n",adjusted_version);

		findUsablePhidgets();

		CInterfaceKit kit(ikId);
		CTextLCD lcd(textLCDId);
		CMyDigitalIn *din[8];

		lcd.on();

		for (int t=0;t<8;t++)
			din[t]=new CMyDigitalIn(CUID(ikId.serial(),t+4),lcd);

		while (1)
			kit.update();

		// won't get here
		for (int t=0;t<8;t++)
			delete din[t];

	}
	catch(const exception &e)
	{
		printf("exception:%s\n",e.what());
	}
}