int Create_Text_LCD()
/*-----------------
creation du handler pour le display du kit LCD
------------------*/
{
int err2;
const char *errStr;
CPhidgetTextLCD_create(&txt_lcd);
CPhidget_set_OnAttach_Handler((CPhidgetHandle)txt_lcd,
LCD_AttachHandler, NULL);
CPhidget_set_OnDetach_Handler((CPhidgetHandle)txt_lcd,
LCD_DetachHandler, NULL);
CPhidget_set_OnError_Handler((CPhidgetHandle)txt_lcd,
LCD_ErrorHandler, NULL);
//open the TextLCD for device connections
CPhidget_open((CPhidgetHandle)txt_lcd,lcd_display_number);
//get the program to wait for an TextLCD device to be attached
if((err2 = CPhidget_waitForAttachment((CPhidgetHandle)txt_lcd,
10000)))
{
CPhidget_getErrorDescription(err2, &errStr);
printf("Problem waiting for attachment Texte LCD: %s\n", errStr);
return 0;
}
return 1;
}
LCD::LCD()
{
txt_lcd = 0;
brightness = 255;
contrast = 110;
backlight = 1;
CPhidgetTextLCD_create(&txt_lcd);
CPhidget_open((CPhidgetHandle)txt_lcd, -1); //PLEASE COMMENT THIS
if(CPhidget_waitForAttachment((CPhidgetHandle)txt_lcd, 1000)) {
std::cout << "Error attaching Phidget Text LCD." << std::endl;
}
CPhidgetTextLCD_setBacklight(txt_lcd, backlight);
CPhidgetTextLCD_setContrast(txt_lcd, contrast);
CPhidgetTextLCD_setBrightness(txt_lcd, brightness);
}
int textlcd_simple()
{
int result;
const char *err;
//Declare an TextLCD handle
CPhidgetTextLCDHandle txt_lcd = 0;
//create the TextLCD object
CPhidgetTextLCD_create(&txt_lcd);
//Set the handlers to be run when the device is plugged in or opened from software, unplugged or closed from software, or generates an error.
CPhidget_set_OnAttach_Handler((CPhidgetHandle)txt_lcd, AttachHandler, NULL);
CPhidget_set_OnDetach_Handler((CPhidgetHandle)txt_lcd, DetachHandler, NULL);
CPhidget_set_OnError_Handler((CPhidgetHandle)txt_lcd, ErrorHandler, NULL);
//open the TextLCD for device connections
CPhidget_open((CPhidgetHandle)txt_lcd, -1);
//get the program to wait for an TextLCD device to be attached
printf("Waiting for TextLCD to be attached....\n");
if((result = CPhidget_waitForAttachment((CPhidgetHandle)txt_lcd, 10000)))
{
CPhidget_getErrorDescription(result, &err);
printf("Problem waiting for attachment: %s\n", err);
return 0;
}
//Display the properties of the attached textlcd device
display_properties(txt_lcd);
//read TextLCD event data
printf("Reading.....\n");
//Begin simulation of capabilities
//Step 1: Write a simple message to the first row
printf("Writing to first row. Press any key to continue\n");
getchar();
CPhidgetTextLCD_setDisplayString (txt_lcd, 0, "Row 1");
//Step 2: write a simple message to the second row
printf("Writing to second row. Press any key to continue\n");
getchar();
CPhidgetTextLCD_setDisplayString (txt_lcd, 1, "Row 2");
//Step 3: turn up, turn down, and set back to default the contrast
printf("Adjusting contrast up. Press any key to continue\n");
getchar();
CPhidgetTextLCD_setContrast (txt_lcd, 255); //valid range is 0 - 255, default is 0 normal viewable seems to be around 100
printf("Restoring default contrast. Press any key to continue\n");
getchar();
CPhidgetTextLCD_setContrast (txt_lcd, 110);
//Step 4: Turn on the cursor
printf("Turn on cursor. Press any key to continue\n");
getchar();
CPhidgetTextLCD_setCursorOn (txt_lcd, 1);
//Step 5: turn on the cursor blink
printf("Turn on cursor blink. Press any key to continue\n");
getchar();
CPhidgetTextLCD_setCursorOn (txt_lcd, 0);
CPhidgetTextLCD_setCursorBlink (txt_lcd, 1);
//End simulation
printf("Press any key to end\n");
getchar();
CPhidgetTextLCD_setCursorBlink (txt_lcd, 0);
CPhidgetTextLCD_setDisplayString (txt_lcd, 0, "");
CPhidgetTextLCD_setDisplayString (txt_lcd, 1, "");
//since user input has been read, this is a signal to terminate the program so we will close the phidget and delete the object we created
printf("Closing...\n");
CPhidget_close((CPhidgetHandle)txt_lcd);
CPhidget_delete((CPhidgetHandle)txt_lcd);
//all done, exit
return 0;
}
