Select option from LCD screen

Other Hardware Displays
1

Hi all,

Hope to have your advice below:

I am currently using Arduino LCD Keypad Shield with 16 col and 2 row.

May i know if it possible for me to do something as below?

Saying if i display

  1. Register
  2. Deregister

on the LCD screen..

How can i use the UP, DOWN, SELECT buttons on the shield to select the option from the display?

i came across with this tutorial and understand that button can be identified with the input voltage level
http://www.dfrobot.com/wiki/index.php?title=Arduino_LCD_KeyPad_Shield_(SKU:_DFR0009)

 if (adc_key_in > 1000) return btnNONE; // We make this the 1st option for speed reasons since it will be the most likely result
 if (adc_key_in < 50)   return btnRIGHT;  
 if (adc_key_in < 195)  return btnUP; 
 if (adc_key_in < 380)  return btnDOWN; 
 if (adc_key_in < 555)  return btnLEFT; 
 if (adc_key_in < 790)  return btnSELECT;

But i can't find tutorial or example that shows get value from LCD screen..
Mostly lcd.setCursor(9,1);

please advise... it would be great if any sample can be referred.

Many thanks!

2

Similar discussion seems to be here:
http://arduino.cc/forum/index.php/topic,98875.15.html

3

olikraus:
Similar discussion seems to be here:
http://arduino.cc/forum/index.php/topic,98875.15.html

Somehow the seller of this particular shield is not so supportive in programming and that make the rest of us do the support while they make the money. Unfair Unfair $)

To make it more fair, I'll just say that my phi-2 shield is the best supported LCD that I know (ant that true?) :slight_smile: